Chromium Containing Patents (Class 148/427)
  • Patent number: 10640858
    Abstract: A method for preparing an improved article including a nickel-based superalloy is presented. The method includes heat-treating a workpiece including a nickel-based superalloy at a temperature above the gamma-prime solvus temperature of the nickel-based superalloy and cooling the heat-treated workpiece with a cooling rate less than 50 degrees Fahrenheit/minute from the temperature above the gamma-prime solvus temperature of the nickel-based superalloy so as to obtain a cooled workpiece. The cooled workpiece includes a coprecipitate of a gamma-prime phase and a gamma-double-prime phase, wherein the gamma-prime phase of the coprecipitate has an average particle size less than 250 nanometers. An article having a minimum dimension greater than 6 inches is also presented. The article includes a material having a coprecipitate of a gamma-prime phase and a gamma-double-prime phase, wherein the gamma-prime phase of the coprecipitate has an average particle size less than 250 nanometers.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: May 5, 2020
    Assignee: General Electric Company
    Inventors: Andrew Joseph Detor, Richard DiDomizio, Timothy Hanlon, Chen Shen, Ning Zhou
  • Patent number: 10641119
    Abstract: The present disclosure relates generally to a sliding seal between two components. The sliding seal includes a seal ring including a radially extending base and an axially-extending leg disposed in a seal cavity between first and second components. A retaining ring having a first leg and a second leg defining a cavity therebetween is disposed with a portion of the base and a portion of the first component contained therein, thereby providing loading forces to help the seal ring seal against both the first and second components. One or more rope seals are carried by the seal ring in an embodiment. Other combinations of seal rings, retaining rings, and rope seals are also disclosed.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: May 5, 2020
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Timothy M. Davis, Paul M. Lutjen
  • Patent number: 10335878
    Abstract: A ternary near eutectic alloy of Ni, Ti, Cr is described having a relatively low melting temperature of approximately 1230 deg. C. or less, suitable for fusing cracks in turbine blades and vanes without substantial risk of cracking during the repair process. Such an alloy is suitable for low temperature joining or repair of turbine blades since it contains the same components as typical turbine blades and vanes without foreign elements to lower the melting point of the repaired material or adversely affect the mechanical properties of the repaired component. Exclusion of boron eliminates the formation of brittle boron compounds, detrimental to the properties of the repair or seam.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: July 2, 2019
    Assignee: SIEMENS ENERGY, INC.
    Inventor: Kazim Ozbaysal
  • Patent number: 10233522
    Abstract: A stainless steel alloy comprising essentially of 19 to 22 percent by weight chromium, 8.5 to 10.5 percent by weight nickel, 5.25 to 5.75 percent by weight silicon, 0.25 to 2.0 percent by weight carbon, 4.0 to 10.5 percent by weight molybdenum, 0.3 to 0.5 percent by weight titanium, 0.1 to 0.5 by weight percent nitrogen and the balance iron plus impurities. The impurities may consist of 0 to 0.2 percent by weight cobalt, 0 to 0.5 percent by weight manganese, 0 to 0.3 percent by weight molybdenum, 0 to 0.03 percent by weight phosphor, 0 to 0.03 percent by weight sulphur, 0 to 0.1 percent by weight nitrogen.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: March 19, 2019
    Assignee: ROLLS-ROYCE plc
    Inventor: David A Stewart
  • Patent number: 10233521
    Abstract: A stainless steel alloy including essentially of 19 to 22 percent by weight chromium, 8.5 to 10.5 percent by weight nickel, 5.25 to 5.75 percent by weight silicon, 0.25 to 1.2 percent by weight carbon, 4.0 to 6.0 percent by weight niobium, 0.3 to 0.5 percent by weight titanium and the balance iron plus impurities. The impurities may include 0 to 0.2 percent by weight cobalt, 0 to 0.5 percent by weight manganese, 0 to 0.3 percent by weight molybdenum, 0 to 0.03 percent by weight phosphor, 0 to 0.03 percent by weight sulphur, 0 to 0.1 percent by weight nitrogen.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: March 19, 2019
    Assignee: ROLLS-ROYCE plc
    Inventor: David A Stewart
  • Patent number: 10177310
    Abstract: A non-volatile memory device includes two electrodes and an active region disposed between and in electrical contact with the electrodes. The active region contains a switching material capable of carrying a species of dopants and transporting the dopants under an electrical field. The electrode is an amorphous conductive material comprising 5 to 90 at % of a first metal, 5 to 90 at % of a second metal, and 5 to 90 at % of a metalloid, wherein the metalloid is any of carbon, silicon, and boron. The metalloid, the first metal, and the second metal account for at least 70 at % of the amorphous conductive material.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: January 8, 2019
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Gary Gibson, James Elmer Abbott, Jr., Zhiyong Li
  • Patent number: 9845697
    Abstract: The present disclosure relates generally to a sliding seal between two components. The sliding seal includes a seal ring including a radially extending base and an axially-extending leg disposed in a seal cavity between first and second components. A retaining ring having a first leg and a second leg defining a cavity therebetween is disposed with a portion of the base and a portion of the first component contained therein, thereby providing loading forces to help the seal ring seal against both the first and second components. One or more rope seals are carried by the seal ring in an embodiment. Other combinations of seal rings, retaining rings, and rope seals are also disclosed.
    Type: Grant
    Filed: January 19, 2015
    Date of Patent: December 19, 2017
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Timothy M. Davis, Paul M. Lutjen
  • Patent number: 9809873
    Abstract: A Ni-based alloy having excellent hot forgeability and corrosion resistance includes, by mass %, Cr: more than 18% to less than 21%, Mo: more than 18% to less than 21%, Ta: 1.1% to 2.5%, Mg: 0.001% to 0.05%, N: 0.001% to 0.04%, Mn: 0.001% to 0.5%, Si: 0.001% to 0.05%, Fe: 0.01% to 1%, Co: 0.01% or more and less than 1%, Al: 0.01% to 0.5%, Ti: 0.01% or more and less than 0.1%, V: 0.005% or more and less than 0.1%, Nb: 0.001% or more and less than 0.1%, B: 0.0001% to 0.01%, Zr: 0.001% to 0.05%, and a balance consisting of Ni and unavoidable impurities.
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: November 7, 2017
    Assignee: Hitachi Metals MMC Superalloy, Ltd.
    Inventor: Katsuo Sugahara
  • Patent number: 9469893
    Abstract: This document describes a process/strategy for age hardening nickel based alloys to create desirable properties with reduced energy expenditure. The inventive process introduces isolated atom nucleation sites to accelerate the nucleation rate by approximately 36 times, thereby permitting age hardening to occur in significantly less time and with significantly less energy expenditure.
    Type: Grant
    Filed: May 28, 2013
    Date of Patent: October 18, 2016
    Assignee: The Florida State University Research Foundation, Inc.
    Inventors: Ke Han, Pingli Mao, Yan Xin
  • Patent number: 9399807
    Abstract: A nickel—chromium—molybdenum—copper alloy resistant to 70% sulfuric acid at 93° C. and 50% sodium hydroxide at 121° C. for acid and alkali neutralization in the field of waste management; the alloy contains, in weight percent, 27 to 33 chromium, 4.9 to 7.8 molybdenum, 3.1 to 6.0 wt. % copper (when chromium is between 30 and 33 wt. %) or 4.7 to 6.0 wt. % copper (when chromium is between 27 and 29.9 wt. %), up to 3.0 iron, 0.3 to 1.0 manganese, 0.1 to 0.5 aluminum, 0.1 to 0.8 silicon, 0.01 to 0.11 carbon, up to 0.13 nitrogen, up to 0.05 magnesium, up to 0.05 rare earth elements, with a balance of nickel and impurities. Titanium or another MC carbide former can be added to enhance thermal stability of the alloy.
    Type: Grant
    Filed: October 16, 2013
    Date of Patent: July 26, 2016
    Assignee: Haynes International, Inc.
    Inventors: Paul Crook, Vinay Deodeshmukh
  • Patent number: 9302935
    Abstract: Certain example embodiments relate to Ni-inclusive ternary alloy being provided as a barrier layer for protecting an IR reflecting layer comprising silver or the like. The provision of a barrier layer comprising nickel, chromium, and/or molybdenum and/or oxides thereof may improve corrosion resistance, as well as chemical and mechanical durability. In certain examples, more than one barrier layer may be used on at least one side of the layer comprising silver. In still further examples, a NixCryMoz-based layer may be used as the functional layer, rather than or in addition to as a barrier layer, in a coating.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: April 5, 2016
    Assignee: Guardian Industries Corp.
    Inventors: Muhammad Imran, Bernd Disteldorf, Marcus Frank, Richard Blacker
  • Patent number: 9034125
    Abstract: A method for manufacturing an Ni base alloy pipe stock comprises piercing and rolling a billet by use of Mannesmann piercing and rolling mill. The pipe stock has controlled amounts of C, Si, Mn, P, S, Cr, Ni, Mo, W, Cu, Al, N, with the balance being Fe. With the method, the following equations are satisfied, wherein values of TGBm, Psr and P? represented by the following equations (1) to (3) being not more than 1300, not more than 200 and not less than 0, respectively TGBm=1380?5000P?100S?4400C??(1), PsrNi+10(Mo+0.5W)+100N??(2), P?=(Ni?50)+10(N?0.1)?2(Cr?25)?5(Mo+0.5W?6)+12??(3), wherein each element symbol in the equations represents mass % of the element concerned.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: May 19, 2015
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Masaaki Igarashi, Kazuhiro Shimoda, Tomio Yamakawa, Hisashi Amaya Amaya
  • Patent number: 8926769
    Abstract: The present application relates to an alloy for use at high temperature. The invention is characterized in that the alloy consists principally of Ni, Cr and Fe and in that the alloy has a principal composition such that the levels of the elements Fe, Si, C, Nb and Mo lie within the following intervals, given in percentage by weight: Fe 5-13 Si 1-3 C <0.1 Nb <0.2 Mo <1.0 and in that Ni comprises the balance, while its level does not exceed 69% and in that the level of Cr is greater than Cr=15% and in that it is less than the lower of the two values Cr=5*Si?2.5*Fe+42.5 and Cr=25.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: January 6, 2015
    Assignee: Sandvik Intellectual Property AB
    Inventor: Rikard Norling
  • Patent number: 8840735
    Abstract: Fatigue damage resistant metal or metal alloy wires have a submicron-scale or nanograin microstructure that demonstrates improved fatigue damage resistance properties, and methods for manufacturing such wires. The present method may be used to form a wire having a nanograin microstructure characterized by a mean grain size that is 500 nm or less, in which the wire demonstrates improved fatigue damage resistance. Wire manufactured in accordance with the present process may show improvement in one or more other material properties, such as ultimate strength, unloading plateau strength, permanent set, ductility, and recoverable strain, for example. Wire manufactured in accordance with the present process is suitable for use in a medical device, or other high end application.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: September 23, 2014
    Assignee: Fort Wayne Metals Research Products Corp
    Inventor: Jeremy E. Schaffer
  • Patent number: 8808473
    Abstract: An austenitic heat resistant alloy includes, by mass percent, C: 0.15% or less, Si: 2% or less, Mn: 3% or less, Ni: 40 to 60%, Co: 10.14 to 25%, Cr: 15% or more and less than 28%, either one or both of Mo: 12% or less and W: less than 0.05%, the total content thereof being 0.1 to 12%, Nd: 0.001 to 0.1%, B: 0.0005 to 0.006%, N: 0.03% or less, O: 0.03% or less, at least one selected from Al: 1.36% or less, Ti: 3% or less, and Nb: 3% or less, and the balance being Fe and impurities. The contents of P and S in the impurities are P: 0.03% or less and S: 0.01% or less. The alloy satisfies 1?4×Al+2×Ti+Nb?12 and P+0.2×Cr×B?0.035, where an element in the Formulas represents the content by mass percent.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: August 19, 2014
    Assignee: Nippon Steel & Sumitomo Metal Corporation
    Inventors: Hiroyuki Hirata, Hirokazu Okada, Hiroyuki Semba, Kazuhiro Ogawa, Atsuro Iseda, Mitsuru Yoshizawa
  • Patent number: 8679268
    Abstract: A ferromagnetic sputtering target comprising metal having a composition containing 20 mol % or less of Cr, and Co as the remainder; wherein the target structure includes a basis metal (A), and flat phases (B), containing 90 wt % or more of Co, within the basis metal (A), the average grain size of the phases (B) is 10 ?m or more and 150 ?m or less, and the average aspect ratio of the phases (B) is 1:2 to 1:10. Provided is a ferromagnetic sputtering target capable of inhibiting the generation of particles during sputtering, and improving the pass-through flux to achieve a stable electrical discharge with a magnetron sputtering device.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: March 25, 2014
    Assignee: JX Nippon Mining & Metals Corporation
    Inventors: Shin-ichi Ogino, Atsushi Sato, Yuichiro Nakamura, Atsutoshi Arakawa
  • Patent number: 8545643
    Abstract: An alloy designed for use in gas turbine engines which has high strength and a low coefficient of thermal expansion is disclosed. The alloy may contain in weight percent 7% to 9% chromium, 21% to 24% molybdenum, greater than 5% tungsten, up to 3% iron, with a balance being nickel and impurities. The alloy must further satisfy the following compositional relationship: 31.95<R<33.45, where the R value is defined by the equation: R=2.66Al+0.19Co+0.84Cr?0.16Cu+0.39Fe+0.60Mn+Mo+0.69Nb+2.16Si+0.47Ta+1.36Ti+1.07V+0.40W The alloy has better hardness after being age-hardened at 1400° F. (760° C.) if tungsten is present from greater than 5% up to 10% and a preferred density if the alloy contains greater than 5% up to 7% tungsten.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: October 1, 2013
    Assignee: Haynes International, Inc.
    Inventors: Lee Pike, S. Krishna Srivastava
  • Patent number: 8512485
    Abstract: A alloy and a process of forming a alloy are disclosed. The alloy has a predetermined grain boundary morphology. The alloy includes by weight greater than about 0.06 percent carbon, up to about 0.0015 percent sulfur, less than about 16 percent chromium, between about 39 percent and about 44 percent nickel, between about 2.5 percent and about 3.3 percent niobium, between about 1.4 percent and about 2 percent titanium, up to about 0.5 percent aluminum, up to about 0.006 percent boron, up to about 0.3 percent copper, up to about 0.006 percent nitrogen, and greater than about 0.5 percent molybdenum.
    Type: Grant
    Filed: January 3, 2011
    Date of Patent: August 20, 2013
    Assignee: General Electric Company
    Inventors: Ganjiang Feng, George A. Goller, Raymond Joseph Stonitsch, Jason R. Parolini, Shan Liu
  • Publication number: 20130195709
    Abstract: A metal base alloy and methods for producing the alloy. The metal base alloy product includes the formula Mebase Ta Sib Crc Mnj Ve Cf, wherein—Mebase is a metal base selected from the group having Fe, Co and Ni, in an amount ranging from about 45-75 w %. The metal base alloy product contains a substantially homogenous dispersion of separate precipitated carbide particles in an amount ranging from 10-65 percentages by volume and the precipitate carbide particles have an average diameter of 0.01-5 micrometers.
    Type: Application
    Filed: June 23, 2011
    Publication date: August 1, 2013
    Applicant: SUPERIOR METALS SWEDEN AB
    Inventors: Sathees Ranganathan, Sohrab Solaimanzadeh-Azar, Hasse Fredriksson, Advenit Makaya
  • Patent number: 8470106
    Abstract: A heat treatment method for desensitizing a nickel-based alloy with respect to environmentally-assisted cracking, the alloy having the following composition in percentages by weight: C?0.10%; Mn?0.5%; Si?0.5%; P?0.015%; S?0.015%; Ni?40%; Cr=12%-40%; Co?10%; Al?5%; Mo=0.1%-15%; Ti?5%; B?0.01%; Cu?5%; W=0.1%-15%; Nb=0-10%; Ta?10%; the balance being Fe, and inevitable impurities that result from processing, characterized in that the alloy is held at 950° C.-1160° C. in an atmosphere of pure hydrogen or containing at least 100 ppm of hydrogen mixed with an inert gas. A part made of a nickel-based alloy having the composition and that has been subjected to the heat treatment.
    Type: Grant
    Filed: December 6, 2007
    Date of Patent: June 25, 2013
    Assignee: Areva NP
    Inventors: Jean-Marc Cloue, Veronique Garat, Eric Andrieu, Julien Deleume
  • Patent number: 8343419
    Abstract: An object of the present invention is to provide a Ni base alloy solid wire for welding, which has excellent cracking resistance to ductility dip cracking in weld metal, can increase the tensile strength of the weld metal to not less than the tensile strength of the base material, and has excellent weldability. The present invention provides a solid wire which has a composition containing Cr: 27.0 to 31.5 mass %, Ti: 0.50 to 0.90 mass %, Nb: 0.40 to 0.70 mass %, Ta: 0.10 to 0.30 mass %, C: 0.010 to 0.030 mass %, and Fe: 5.0 to 11.0 mass %, and is regulated to Al: 0.10 mass % or less, N: 0.020 mass % or less, Zr 0.005 mass % or less, P:0.010 mass % or less, S: 0.0050 mass % or less, Si: 0.50 mass % or less, and Mn: 1.00 mass % or less, with the balance including Ni and inevitable impurities.
    Type: Grant
    Filed: February 8, 2011
    Date of Patent: January 1, 2013
    Assignee: Kobe Steel, Ltd.
    Inventors: Tetsunao Ikeda, Masaki Shimamoto, Shun Izutani, Hiroaki Kawamoto, Yushi Sawada, Hirohisa Watanabe
  • Patent number: 8334056
    Abstract: An alloy including: about 10 at % to about 30 at % of a Pt-group metal; less than about 23 at % Al; about 0.5 at % to about 2 at % of at least one reactive element selected from Hf, Y, La, Ce and Zr, and combinations thereof; a superalloy substrate constituent selected from the group consisting of Cr, Co, Mo, Ta, Re and combinations thereof; and Ni; wherein the Pt-group metal, Al, the reactive element and the superalloy substrate constituent are present in the alloy in a concentration to the extent that the alloy has a solely ??-Ni3Al phase constitution.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: December 18, 2012
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Brian M. Gleeson, Daniel J. Sordelet, Wen Wang
  • Patent number: 8313591
    Abstract: An austenitic heat resistant alloy, which contains, by mass percent, C?0.15%, Si?2%, Mn?3%, Ni: 40 to 80%, Cr: 15 to 40%, W and Mo: 1 to 15% in total content, Ti?3%, Al?3%, N?0.03%, O?0.03%, with the balance being Fe and impurities, and among the impurities P?0.04%, S?0.03%, Sn?0.1%, As?0.01%, Zn?0.01%, Pb?0.01% and Sb?0.01%, and satisfies the conditions [P1=S+{(P+Sn)/2}+{(As+Zn+Pb+Sb)/5}?0.050], [0.2?P2=Ti+2Al?7.5?10×P1], [P2?9.0?100×O] and [N?0.002×P2+0.019] can prevent both the liquation crack in the HAZ and the brittle crack in the HAZ and also can prevent defects due to welding fabricability, which occur during welding fabrication, and moreover has excellent creep strength at high temperatures. Therefore, the alloy can be used suitably as a material for constructing high temperature machines and equipment, such as power generating boilers, plants for the chemical industry and so on.
    Type: Grant
    Filed: December 24, 2009
    Date of Patent: November 20, 2012
    Assignee: Sumitomo Metal Industries, Ltd.
    Inventors: Hiroyuki Hirata, Atsuro Iseda, Hirokazu Okada, Hiroyuki Semba, Kaori Kawano, Osamu Miyahara
  • Patent number: 8313593
    Abstract: A method of heat treating an Ni-base superalloy article is disclosed. The method includes hot-working an article comprising an NiCrMoNbTi superalloy comprising, in weight percent, at least about 55 Ni to produce a hot-worked microstructure; solution treating the article at a temperature of about 1600° F. to about 1750° F. for about 1 to about 12 hours to form a partially recrystallized warm-worked microstructure; and cooling the article. The method also includes precipitation aging the article at a first precipitation aging temperature of about 1300° F. to about 1400° F. for a first duration of about 4 hours to about 12 hours; cooling the article to a second precipitation aging temperature; precipitation aging the article at a second precipitation aging temperature of about 1150° F. to about 1200° F. for a second duration of about 4 hours to about 12 hours; and cooling the article from the second precipitation aging temperature to an ambient temperature.
    Type: Grant
    Filed: September 15, 2009
    Date of Patent: November 20, 2012
    Assignee: General Electric Company
    Inventors: Jeffrey Allen Hawk, Robin Carl Schwant
  • Patent number: 7922969
    Abstract: The corrosion-resistant nickel-base alloy combines thermal stability with corrosion resistance and mechanical strength. The alloy contains balanced proportions of nickel, molybdenum, chromium, and iron with an effective amount of yttrium to stabilize grain boundaries against unwanted reactions, which might degrade corrosion resistance, and an effective amount of boron to maintain an acceptable level of ductility. The alloy may contain minor amounts of additives or impurities, such as silicon, manganese, and aluminum. The alloy may contain between about 25-45% molybdenum, 2-6% chromium, 2-4% iron, 0.01-0.03% boron, 0.005-0.015% yttrium, and up to a maximum of 1% manganese, silicon, and aluminum, respectively, by weight, the balance being nickel. It is preferred that the combined ratio of molybdenum, chromium, and iron to nickel be in the range of about 25% to 45%.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: April 12, 2011
    Assignee: King Fahd University of Petroleum and Minerals
    Inventor: Hani M. Tawancy
  • Publication number: 20110064569
    Abstract: In one embodiment, a nickel-base alloy for forging or rolling contains, in weight %, carbon (C): 0.05 to 0.2, silicon (Si) 0.01 to 1, manganese (Mn): 0.01 to 1, cobalt (Co): 5 to 20, iron (Fe): 0.01 to 10, chromium (Cr): 15 to 25, and one kind or two kinds or more of molybdenum (Mo), tungsten (W) and rhenium (Re), with Mo+(W+Re)/2: 8 to 25, the balance being nickel (Ni) and unavoidable impurities.
    Type: Application
    Filed: August 11, 2010
    Publication date: March 17, 2011
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Masayuki YAMADA, Kiyoshi Imai, Kuniyoshi Nemoto, Shigekazu Miyashita, Takeo Suga
  • Publication number: 20110061394
    Abstract: A method of heat treating an Ni-base superalloy article is disclosed. The method includes hot-working an article comprising an NiCrMoNbTi superalloy comprising, in weight percent, at least about 55 Ni to produce a hot-worked microstructure; solution treating the article at a temperature of about 1600° F. to about 1750° F. for about 1 to about 12 hours to form a partially recrystallized warm-worked microstructure; and cooling the article. The method also includes precipitation aging the article at a first precipitation aging temperature of about 1300° F. to about 1400° F. for a first duration of about 4 hours to about 12 hours; cooling the article to a second precipitation aging temperature; precipitation aging the article at a second precipitation aging temperature of about 1150° F. to about 1200° F. for a second duration of about 4 hours to about 12 hours; and cooling the article from the second precipitation aging temperature to an ambient temperature.
    Type: Application
    Filed: September 15, 2009
    Publication date: March 17, 2011
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: JEFFREY ALLEN HAWK, ROBIN CARL SCHWANT
  • Patent number: 7785532
    Abstract: A nickel-molybdenum-chromium alloy, capable of withstanding both strong oxidizing and strong reducing 2.5% hydrochloric acid solutions at 121° C., contains 20.0 to 23.5 wt. % molybdenum and 13.0 to 16.5 wt. % chromium with the balance being nickel plus impurities and residuals of elements used for control of oxygen and sulfur.
    Type: Grant
    Filed: May 14, 2007
    Date of Patent: August 31, 2010
    Assignee: Haynes International, Inc.
    Inventor: Paul Crook
  • Patent number: 7666519
    Abstract: A high temperature sliding alloy has a matrix 1 of a Ni-base alloy or a heat resistant Fe-base alloy, and contains, by mass, 1 to 35% hard particles consisting of a Co-base intermetallic compound dispersed therein, wherein 0.1 to 10% Ag is dispersed in the matrix. Ag is a soft metal, forms an ultrathin film on a sliding surface caused by sliding with a mating member, and presents a lubricating effect. When Ag forms the ultrafine film and spreads on the sliding surface, it works little as a frictional force against the mating member due to its low shear resistance, and accordingly can achieve a low coefficient of friction.
    Type: Grant
    Filed: April 25, 2006
    Date of Patent: February 23, 2010
    Assignee: Daido Metal Company Ltd.
    Inventor: Kouki Ozaki
  • Patent number: 7531130
    Abstract: The present invention relates to an anti-galling alloy with finely dispersed precipitates, more particularly to an anti-galling alloy comprising Ni, Cr, Sn, Bi, Mo, Fe, Si and Te, in which the matrix has a fine dendritic structure and the Bi-rich precipitates are finely dispersed between the dendritic structure, so that the anti-galling properties are significantly improved, while physicochemical properties such as corrosion resistance and hardness are not deteriorated. The anti-galling alloy of the present invention will greatly contribute to the improvement in life cycle and mechanical precision of a variety of wet machinery parts such as rotor, shaft, valve and mechanical sealing.
    Type: Grant
    Filed: October 2, 2003
    Date of Patent: May 12, 2009
    Assignee: Korea Anti-Galling Metal Co., Ltd.
    Inventors: Heon Phil Ha, Jae-Dong Shim, Kyung Tak Kim
  • Patent number: 7485199
    Abstract: A Ni based alloy with a composition including Cr: from more than 43% to 50% or less, Mo: 0.1% to 2%, Mg: 0.001% to 0.05%, N: 0.001% to 0.04%, Mn: 0.05% to 0.5%, and where necessary also including either one, or both, of Fe: 0.05% to 1.0% and Si: 0.01% to 0.1%, and the remainder as Ni and unavoidable impurities, in which the quantity of C amongst the unavoidable impurities is restricted to 0.05% or less. It has excellent corrosion resistance relative to supercritical water environments containing inorganic acids. Also provided is a member for a supercritical water process reaction apparatus comprises the Ni based alloy.
    Type: Grant
    Filed: January 8, 2003
    Date of Patent: February 3, 2009
    Assignee: Mitsubishi Materials Corporation
    Inventor: Katsuo Sugahara
  • Patent number: 7381369
    Abstract: Provided is free cutting alloy excellent in machinability, preserving various characteristics as alloy. The free cutting alloy contains: one or more of Ti and Zr as a metal element component; and C being an indispensable element as a bonding component with the metal element component, wherein a (Ti,Zr) based compound including one or more of S, Se and Te is formed in a matrix metal phase. The free cutting alloy is more excellent in machinability, preserving various characteristics as alloy at similar levels to a conventional case. The effect is especially conspicuous, for example, when a compound expressed in a chemical form of (Ti,Zr)4C2(S,Se,Te)2 as the (Ti,Zr) based compound is formed at least in a dispersed state in the alloy structure.
    Type: Grant
    Filed: May 18, 2004
    Date of Patent: June 3, 2008
    Assignees: Daido Tokushuko Kabushiki Kaisha, Tohoku Tokushuko Kabushiki Kaisha, Japan Industrial Technology Association, Tohoku Technoarch Co., Ltd.
    Inventors: Kiyohito Ishida, Katsunari Oikawa, Takashi Ebata, Tetsuya Shimizu, Michio Okabe
  • Publication number: 20080053577
    Abstract: Disclosed herein is a nickel-titanium alloy comprising nickel, titanium, and at least one rare earth element. The nickel-titanium alloy comprises from about 34 at. % to about 60 at. % nickel, from about 34 at. % to about 60 at. % titanium, and from about 0.1 at. % to about 15 at. % at least one rare earth element. The nickel-titanium alloy may further include one or more additional alloying elements. In addition to radiopacity, the nickel-titanium alloy preferably exhibits superelastic or shape memory behavior. Medical devices comprising the nickel-titanium alloy and a method of making them are also disclosed.
    Type: Application
    Filed: September 6, 2007
    Publication date: March 6, 2008
    Applicants: Cook Incorporated, Cook Ireland Limited
    Inventors: Tofail Ansar Syed, James M. Carlson, Shane Carr, Paul Devereux, Donncha Haverty, Shay J. Lavelle, Tim McGloughlin
  • Patent number: 7297214
    Abstract: Provided is free cutting alloy excellent in machinability, preserving various characteristics as alloy. The free cutting alloy contains: one or more of Ti and Zr as a metal element component; and C being an indispensable element as a bonding component with the metal element component, wherein a (Ti,Zr) based compound including one or more of S, Se and Te is formed in a matrix metal phase. The free cutting alloy is more excellent in machinability, preserving various characteristics as alloy at similar levels to a conventional case. The effect is especially conspicuous, for example, when a compound expressed in a chemical form of (Ti,Zr)4C2(S,Se,Te)2 as the (Ti,Zr) based compound is formed at least in a dispersed state in the alloy structure.
    Type: Grant
    Filed: May 18, 2004
    Date of Patent: November 20, 2007
    Assignees: Daido Tokushuko Kabushiki Kaisha, Tohoku Tokushuko Kabushiki Kaisha, Japan Industrial Technology Association, Tohoku Technoarch Co., Ltd.
    Inventors: Kiyohito Ishida, Katsunari Oikawa, Takashi Ebata, Takayuki Inoguchi, Tetsuya Shimizu, Michio Okabe
  • Patent number: 7273662
    Abstract: An alloy including a Pt-group metal, Ni and Al in relative concentration to provide a ?-Ni+??-Ni3Al phase constitution, and a coating including the alloy.
    Type: Grant
    Filed: May 16, 2003
    Date of Patent: September 25, 2007
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Brian Gleeson, Daniel Sordelet, Wen Wang
  • Patent number: 7118636
    Abstract: An Fe—Ni—Cr alloy formulated to contain a strengthening phase that is able to maintain a fine grain structure during forging and high temperature processing of the alloy. The alloy contains a sufficient amount of titanium, zirconium, carbon and nitrogen so that fine titanium and zirconium carbonitride precipitates formed thereby are near their solubility limit in the alloy when molten. In the production of an article from such an alloy by thermomechanical processing, a dispersion of the fine titanium and zirconium carbonitride precipitates form during solidification of the melt and remain present during subsequent elevated processing steps to prohibit austenitic grain growth.
    Type: Grant
    Filed: April 14, 2003
    Date of Patent: October 10, 2006
    Assignee: General Electric Company
    Inventors: Jianqiang Chen, Jon Conrad Schaeffer, Anjilivelil Kuruvilla
  • Patent number: 7037390
    Abstract: A method of heat treatment for an efficient forming of two-layered oxide film on the inside surface of a Ni-base alloy tube. The oxide film suppresses the Ni release in a high-temperature water environment. At least two gas supplying devices are provided on the outlet side of a continuous heat treatment furnace; or one gas supplying device is provided respectively on the outlet side and the inlet side thereof. The tube is put into the furnace while supplying an atmospheric gas into the tube from the front end of the tube moving direction with one of these gas supplying devices and a gas introducing pipe, which is arranged inside the furnace, and this tube is maintained at 650 to 1200° C. for 1 to 1200 minutes. The atmospheric gas consists of hydrogen or a mixture of hydrogen and argon, whose dew point is in a range of from ?60° C. to +20° C.
    Type: Grant
    Filed: October 9, 2003
    Date of Patent: May 2, 2006
    Assignee: Sumitomo Metal Industries, Ltd.
    Inventors: Osamu Miyahara, Toshihiro Imoto, Hiroyuki Anada, Kazuyuki Kitamura
  • Patent number: 6946039
    Abstract: The invention includes a physical vapor deposition target composed of a face centered cubic unit cell metal or alloy and having a uniform grain size less than 30 microns, preferably less than 1 micron; and a uniform axial or planar <220> texture. Also described is a method for making sputtering targets. The method can comprise billet preparation; equal channel angular extrusion with a prescribed route and number of passes; and cross-rolling or forging subsequent to the equal channel angular extrusion.
    Type: Grant
    Filed: November 2, 2000
    Date of Patent: September 20, 2005
    Assignee: Honeywell International Inc.
    Inventors: Vladimir M. Segal, Stephane Ferrasse, Frank Alford
  • Patent number: 6860948
    Abstract: A nickel-chromium-molybdenum alloy capable of being age hardened for improved strength while maintaining high corrosion resistance contains in weight percent 19.5 to 22 chromium, 15 to 17.5 molybdenum, up to 3 iron, up to 1.5 manganese, up to 0.5 aluminum, up to 0.02 carbon, up to 0.015 boron, up to 0.5 silicon, up to 1.5 tungsten and up to 0.5 of each of hafnium, tantalum and zirconium, with a balance of nickel and impurities. Certain alloying elements must be present in amounts according to an equation here disclosed.
    Type: Grant
    Filed: September 5, 2003
    Date of Patent: March 1, 2005
    Assignee: Haynes International, Inc.
    Inventor: Lee M. Pike, Jr.
  • Patent number: 6852177
    Abstract: A nickel-based alloy is provided for provide parts and members of improved oxidation-resistance and high temperature strength for use in an oxidation atmosphere at high temperatures, such as automobile parts including an electrode for an ignition plug, power plant facility parts including a gas turbine nozzle, inner parts of heat treat furnaces, and fuel cell parts. The alloy improved in oxidation-resistance, high temperature strength and hot workability consists essentially of, in mass percentage, C: 0.003 to 0.1%, Si: 1.0% or less, Mn: 2.0% or less, Cr: 12 to 32%, Fe: 20% or less, Mg: 0.001 to 0.04%, at least one element, of not more than 2.5% in total, selected from the group consisting of Nb, Ta and V, impurity elements of S: 0.01% or less, but the ratio of the Mg-content to the S-content (Mg/S) being 1 or more, and Ti: 0 inclusive to 0.02%, and the rest being Ni and incidental impurities.
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: February 8, 2005
    Assignee: Hitachi Metals Ltd.
    Inventors: Satoshi Kubota, Toshihiro Uehara, Motoi Yamaguchi, Akihiro Toji
  • Patent number: 6782943
    Abstract: A fouling reducing device for the tubes of a tubular heat exchanger of the type that contains at least one turbulence-generating element lodged inside one of the tubes of the exchanger. The fouling reducing device is a turbulence-generating element made of a metallic alloy with a nickel content that is greater than 50% by weight, and further made of at least one metal chosen from among chrome and molybdenum. The turbulence-generating element has an improved resistance to corrosion when in contact with a hydrocarbon, such as crude oil.
    Type: Grant
    Filed: January 29, 2002
    Date of Patent: August 31, 2004
    Assignee: Elf Antar France
    Inventor: Claude Baudelet
  • Patent number: 6776728
    Abstract: A weight member for a golf club head is made of a WFeNi alloy by a precision casting process. The WFeNi alloy includes wt 15%-40% of iron, wt 30%-60% of nickel, wt 15%-30% of tungsten, wt 1.5%-10.0% of chromium, and wt 0.5%-5.0% of molybdenum. Chromium improves the rust-resisting property of the weight member. Molybdenum reduces the risk of cracks in the weight member during welding. Uniformity of shining finishing of the weight member can be improved by controlling a mixture ratio of nickel to tungsten. Manganese, copper, vanadium, and niobium may be added to improve the mechanical properties of the weight member.
    Type: Grant
    Filed: July 3, 2003
    Date of Patent: August 17, 2004
    Assignee: Nelson Precision Casting Co., Ltd.
    Inventors: Chan-Tung Chen, Yan-Zheng Su
  • Patent number: 6764646
    Abstract: A nickel-chromium-molybdenum-copper alloy that is resistant to sulfuric acid and wet process phosphoric acid contains in weight percent 30.0 to 35.0% chromium, 5.0 to 7.6% molybdenum, 1.6 to 2.9% copper, up to 1.0% manganese, up to 0.4% aluminum, up to 0.6% silicon, up to 0.06% carbon, up to 0.13% nitrogen, up to 5.1% iron, up to 5.0% cobalt, with the balance nickel plus impurities.
    Type: Grant
    Filed: June 13, 2002
    Date of Patent: July 20, 2004
    Assignee: Haynes International, Inc.
    Inventors: Paul Crook, Martin L. Caruso
  • Patent number: 6758764
    Abstract: A weight member for a golf club head is made of a WFeNi alloy by a precision casting process. The WFeNi alloy includes nickel 30-60 wt %, tungsten 15-30 wt %, chromium 1.5-10.0 wt %, and iron that is the remaining portion. Chromium improves the rust resisting property of the weight member and lengthens the life of the weight member. Uniformity of shining finishing of the weight member can be improved by controlling a mixture ratio of nickel to tungsten. Silicon may be added to improve the flowability of the molten metal. Manganese, copper, vanadium, and niobium may be added to improve the mechanical properties of the weight member.
    Type: Grant
    Filed: July 3, 2003
    Date of Patent: July 6, 2004
    Assignee: Nelson Precision Casting Co., Ltd.
    Inventors: Chan-Tung Chen, Yan-Zheng Su
  • Patent number: 6752883
    Abstract: A free-cutting Ni-base heat-resistant alloy excellent in the high-temperature strength and corrosion resistance was proposed. The alloy contains Ni as a major component, 0.01 to 0.3 wt % of C and 14 to 35 wt % of Cr, and further contains at least one element selected from Ti, Zr and Hf in a total amount of 0.1 to 6 wt %, and S in an amount of 0.015 to 0.5 wt %. The alloy has dispersed in the matrix thereof a machinability improving compound phase, where such phase contains any one of Ti, Zr and Hf as a major constituent of the metal elements, essentially contains C and either S or Se as a binding component for such metal elements. The alloy also satisfies the relations of WTi+0.53WZr+0.27WHf>2WC+0.75WS and WC>0.37WS, where WTi represents Ti content (wt %), WZr represents Zr content (wt %), WHf represents Hf content (wt %), WC represents C content (wt %) and WS represents S content (wt %).
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: June 22, 2004
    Assignees: Dokuritsu Gyousei Houjin Sangyo Gijutsu Sougo Kenkyusho, Daido Tokushuko Kabushiki Kaisha, Tohoku Tokushuko Kabushiki Kaisha
    Inventors: Kiyohito Ishida, Katsunari Oikawa, Shigeki Ueta, Toshiharu Noda, Takashi Ebata
  • Patent number: 6740291
    Abstract: A nickel-chromium-molybdenum alloy that is thermally stable and resistant to wet process phosphoric acid and chloride induced localized attack contains in weight percent 31.0 to 34.5% chromium, 7.0 to 10.0% molybdenum, up to 0.2% nitrogen, up to 3.0% iron, up to 1.0% manganese, up to 0.4% aluminum, up to 0.75% silicon, up to 0.1% carbon with the balance nickel plus impurities.
    Type: Grant
    Filed: May 15, 2002
    Date of Patent: May 25, 2004
    Assignee: Haynes International, Inc.
    Inventor: Paul Crook
  • Patent number: 6730180
    Abstract: The present invention is drawn to new classes of advanced neutron absorbing structural materials for use in spent nuclear fuel applications requiring structural strength, weldability, and long term corrosion resistance. Particularly, an austenitic stainless steel alloy containing gadolinium and less than 5% of a ferrite content is disclosed. Additionally, a nickel-based alloy containing gadolinium and greater than 50% nickel is also disclosed.
    Type: Grant
    Filed: September 26, 2001
    Date of Patent: May 4, 2004
    Assignee: Bechtel BWXT Idaho, LLC
    Inventors: Ronald E. Mizia, Eric L. Shaber, John N. DuPont, Charles V. Robino, David B. Williams
  • Patent number: 6696176
    Abstract: A fusion weldable superalloy containing 0.005-0.5 wt. % scandium. In one embodiment, the superalloy may have a composition similar to IN-939 alloy, but having added scandium and having only 0.005-0.040 wt. % zirconium. A gas turbine component may be formed by an investment casting of such a scandium-containing superalloy, and may include a fusion weld repaired area. A scandium-containing nickel-based superalloy coated with an MCrAlY bond coat will have improved cyclic oxidation resistance due to the sulfur-gettering effect of the scandium.
    Type: Grant
    Filed: March 6, 2002
    Date of Patent: February 24, 2004
    Assignee: Siemens Westinghouse Power Corporation
    Inventors: David B. Allen, Gregg P. Wagner, Brij B. Seth
  • Patent number: 6623869
    Abstract: A metallic material of the invention which comprises, in mass %, C: not more than 0.2%, Si: 0.01-4%, Mn: 0.05-2%, P: not more than 0.04%, S: not more than 0.015%, Cr: 10-35%, Ni: 30-78%, Al: not less than 0.005% but less than 4.5%, N: 0.005-0.2%, and one or both of Cu: 0.015-3% and Co: 0.015-3%, with the balance substantially being Fe, and of which the value of 40Si+Ni+5Al+40N+10 (Cu+Co), wherein the symbols of elements represent the contents of the respective elements, is not less than 50 and has excellent corrosion resistance in an environment in which metal dusting is ready to occur and, therefore, can be utilized as or in heating furnace pipes, piping systems, heat exchanger pipes and so forth to be used in a petroleum refinery or in petrochemical plants, and can markedly improve the equipment durability and safety.
    Type: Grant
    Filed: February 11, 2003
    Date of Patent: September 23, 2003
    Inventors: Yoshitaka Nishiyama, Nobuo Otsuka
  • Patent number: 6599346
    Abstract: A biaxially textured alloy article having a magnetism less than pure Ni includes a rolled and annealed compacted and sintered powder-metallurgy preform article, the preform article having been formed from a powder mixture selected from the group of mixtures consisting of: at least 60 at % Ni powder and at least one of Cr powder, W powder, V powder, Mo powder, Cu powder, Al powder, Ce powder, YSZ powder, Y powder, Mg powder, and RE powder; the article having a fine and homogeneous grain structure; and having a dominant cube oriented {100}<100> orientation texture; and further having a Curie temperature less than that of pure Ni.
    Type: Grant
    Filed: August 16, 2001
    Date of Patent: July 29, 2003
    Assignee: UT-Battelle, LLC
    Inventors: Amit Goyal, Robert K. Williams, Donald M. Kroeger