Cobalt Containing Patents (Class 420/585)
  • Patent number: 11987865
    Abstract: A high hardness and temperature-resistant alloy is disclosed, and comprises 10-40 atomic percent Co, 30-56 atomic percent Cr, 10-40 atomic percent Ni, 6-13 atomic percent C, 0-8 atomic percent Mo, and 0-8 atomic percent W. Moreover, the elemental composition of the high hardness and temperature-resistant alloy can further comprise at least one additive element, such as Pb, Sn, Ge, Si, Zn, Sb, P, B, Mg, Mn, V, Nb, Ti, Zr, Y, La, Ce, Al, Ta, Cu, and Fe. Experimental data reveal that, the high hardness and temperature-resistant alloy can still show a property of hardness greater than HV100 in 900 degrees Celsius. Therefore, experimental data have proved that the high hardness and temperature-resistant alloy has a significant potential for applications in the manufacture of hot working die metals, components (e.g., turbine blade) for high temperature applications, and devices (e.g., aeroengine) for high temperature applications.
    Type: Grant
    Filed: June 18, 2021
    Date of Patent: May 21, 2024
    Assignee: NATIONAL TSING HUA UNIVERSITY
    Inventor: Jien-Wei Yeh
  • Patent number: 11306372
    Abstract: A Co based alloy powder includes between 0.08% and 0.25% mass of carbon, 0.1% mass or less of boron, between 10% and 30% mass of chromium, 5% mass or less of iron, and 30% mass or less of nickel; the iron and the nickel in a total amount of 30% mass or less; includes at least one of tungsten and molybdenum in a total amount of between 5% and 12% mass; includes at least one of titanium, zirconium, niobium, tantalum, hafnium, and vanadium in a total amount of between 0.5% mass and 2% mass; includes 0.5% mass or less of silicon, 0.5% mass or less of manganese, and between 0.003% and 0.04% mass of nitrogen; and includes cobalt and impurities as the balance of the powder. Crystal grains included in the cobalt-based alloy powder have segregated cells; the cells have an average size of between 0.15 ?m and 4 ?m.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: April 19, 2022
    Assignee: MITSUBISHI POWER, LTD.
    Inventors: Yuting Wang, Shinya Imano
  • Patent number: 10844465
    Abstract: Stainless steel alloys, and turbocharger kinematic components fabricated from such alloys (for example by sintering), are provided. A stainless steel alloy, or component fabricated therefrom, includes, by weight, about 20% to about 35% chromium, about 10% to about 15% nickel, about 10% to about 15% cobalt, about 10% to about 15% molybdenum, about 2.0% to about 4.0% carbon, about 0.4% to about 2.5% silicon, about 0.0% to about 1.0% niobium, and a balance of iron and other inevitable/unavoidable impurities.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: November 24, 2020
    Assignee: GARRETT TRANSPORTATION I INC.
    Inventors: Marc Wilson, Karel Svaricek, Marek Slouka, Ondrej Bojda, Klara Siskova, Jiri Saul, Radim Mrazek, Antonin Forbelsky, Richard Kocur
  • Patent number: 10041153
    Abstract: A high temperature, high strength Ni—Co—Cr alloy possessing essentially fissure-free weldability for long-life service at 538° C. to 816° C. contains in % by weight about: 23.5 to 25.5% Cr, 15-22% Co, 1.1 to 2.0% Al, 1.0 to 1.8 % Ti, 0.95 to 2.2% Nb, less than 1.0% Mo, less than 1.0% Mn, less than 0.3% Si, less than 3% Fe, less than 0.3% Ta, less than 0.3% W, 0.005 to 0.08% C, 0.01 to 0.3% Zr, 0.0008 to 0.006% B, up to 0.05% rare earth metals, 0.005% to 0.025% Mg plus optional Ca and the balance Ni including trace additions and impurities. The strength and stability is assured at 760° C. when the Al/Ti ratio is constrained to between 0.95 and 1.25. Further, the sum of Al+Ti is constrained to between 2.25 and 3.0. The upper limits for Nb and Si are defined by the relationship: (% Nb+0.95)+3.32(% Si)<3.16.
    Type: Grant
    Filed: April 8, 2009
    Date of Patent: August 7, 2018
    Assignee: Huntington Alloys Corporation
    Inventors: Brian A. Baker, Gaylord D. Smith, Ronald D. Gollihue
  • Publication number: 20140356223
    Abstract: The inventors have developed a new alloy which is useful in HVOF-spraying of a substrate, such as plungers which are used in glass manufacture. When coated with said alloy, these parts display high wear resistance and consequently longer lifetime.
    Type: Application
    Filed: December 5, 2012
    Publication date: December 4, 2014
    Inventors: Lars-åke Nilsson, Peter Olsérius
  • Publication number: 20140334968
    Abstract: Thermal fatigue is the predominant mechanism that limits the service life of dies in semi-solid forming of steels since the feedstock to be shaped has a paste-like character. A novel alloy, more resistant to these conditions than any other alloy, has been developed. Eutectic carbides in Stellite alloys are replaced in this novel alloy with molybdenum-rich intermetallic compound particles between dendrites. This novel alloy offers at least 3 times longer service life with respect to Stellite 6 alloy that has been tested under conditions that mimic the steel semi-solid forming process and has been identified as the most suitable. The exceptional performance of the novel alloy is attributed to its outstanding resistance to oxidation and to softening at elevated temperatures and to its cobalt based matrix free from the hard and brittle carbides that have a negative impact on crack growth process.
    Type: Application
    Filed: November 16, 2012
    Publication date: November 13, 2014
    Applicant: TUBITAK
    Inventors: Osman Cakir, Fahri Alageyik, Yucel Birol
  • Publication number: 20140234652
    Abstract: Coatings as may be used in a gas turbine are provided. A nickel based coating may include 15 to 40 wt % cobalt, 10 to 25 wt % chromium, 5 to 15 wt % aluminum, 0.05 to 1 wt % yttrium and/or at least one of elements from lanthanum series, 0.05 to 8 wt % ruthenium or iron, 0 to 1 wt % iridium, 0.05 to 5 wt % molybdenum, 0 to 3 wt % silicon, 0 to 5 wt % tantalum, 0 to 2 wt % hafnium, unavoidable impurities, and a balance of nickel. A cobalt based coating may include 15 to 40 wt % nickel, 15 to 28 wt % chromium, 5 to 15 wt % aluminum, 0.05 to 1 wt % yttrium and/or at least one of elements from lanthanum series, 0.05 to 5 wt % ruthenium and/or molybdenum, 0 to 2 wt % iridium, 0 to 3 wt % silicon, 0 to 5 wt % tantalum, hafnium, unavoidable impurities, and a balance of cobalt.
    Type: Application
    Filed: September 18, 2012
    Publication date: August 21, 2014
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventor: Xin-Hai Li
  • Publication number: 20140227550
    Abstract: A ternary magnetic braze alloy and method for applying the braze alloy in areas having limited access. The magnetic braze alloy is a nickel-based braze alloy from the perminvar region of the Ni, Fe, Co phase diagram. The braze alloy includes, by weight percent 8-45% Fe, 0-78% Co, 2.0-4.0% of an element selected from the group consisting of B and Si and combinations thereof, and the balance Ni. The nickel-based braze alloy is characterized by a brazing temperature in the range of 1850-2100° F. The nickel-based braze alloy is magnetic below its Curie temperature.
    Type: Application
    Filed: February 12, 2013
    Publication date: August 14, 2014
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Yan CUI, Dechao LIN, Srikanth Chandrudu KOTTILINGAM, Brian Lee TOLLISON
  • Publication number: 20140030141
    Abstract: Nickel-chromium-iron-molybdenum alloy, comprising 40 to 48 wt % nickel, 30 to 38 wt % chromium, 4 to 12 wt % molybdenum and iron, wherein the alloy optionally further comprises up to 5 wt % manganese, up to 2 wt % copper, up to 0.6 wt % nitrogen, up to 0.5 wt % aluminium and up to 0.5 wt % vanadium.
    Type: Application
    Filed: November 18, 2011
    Publication date: January 30, 2014
    Inventors: Per Henrik Asteman, Georg-Wilheim Overbeck
  • Publication number: 20130336836
    Abstract: A stent made entirely or partially of a cobalt alloy having the following composition: Co: 18.36-66.85% by weight Cr: 17.0-30.0% by weight Mn: 4.0-10.0% by weight W: 9.0-18.0% by weight Fe: 3.0-20.0% by weight C: 0.03-0.5% by weight N: 0.1-1.0% by weight Si: 0-2.0% by weight O: 0-0.05% by weight with the alloying components and production-related impurities adding up to 100% by weight and (i) a PRE value for corrosion resistance, which is derived from the weight percentages of the alloying components according to formula (1) PRE=[Cr]+1.65×[W]+30×[N]??(1) ranges between 34 and 89; and (ii) for the contents of nitrogen and carbon the following restrictions according to formula (2) and (3) apply 0.15?C+N?1.00??(2) 0.25?C+N?1.00??(3).
    Type: Application
    Filed: June 10, 2013
    Publication date: December 19, 2013
    Inventor: Bodo Gerold
  • Publication number: 20130323116
    Abstract: An alloy material with a constant electrical resistivity in a wide temperature range comprises the following chemical formula: AlvCowCrxFeyNiz, wherein v is in the range of 1.9 to 2.1, w is in the range of 0.9 to 1.1, x is in the range of 0.9 to 1.1, y is in the range of 0.9 to 1.1, and z is in the range of 0.9 to 1.1. A method for producing the alloy material comprises the steps of: providing raw metal materials and mixing them according to the molar ratio of the prescription of the alloy materials; disposing the mixed raw metal to materials into a furnace and homogeneously smelting each of the raw metal materials under a protective Ar atmospheric environment; cooling and solidifying the smelted raw metal materials in order to obtain the alloy; and deforming and/or shaping the solidified alloy to predefined figures and dimensions.
    Type: Application
    Filed: May 31, 2012
    Publication date: December 5, 2013
    Inventor: Swe-Kai CHEN
  • Publication number: 20130224069
    Abstract: Provided is a hydrochloric acid corrosion resistant alloy For brazing that is provided with corrosion resistance against hydrochloric acid, and when brazing various types of stainless steel, can be used for brazing at practical temperatures (1150° C. or less), and has good joint strength and brazeability to the substrate. The hydrochloric acid corrosion resistant alloy of the present invention contains, in mass percent, 6.0-18.0% Mo, 10.0-25.0% Cr, 0.5-5.0% Si, and 4.5-8.0% P, with the remainder being 40.0-73.0% Ni and unavoidable impurities, and the total of Si and P being 6.5-10.5%. In this case, the alloy may contain 12.0% or less of Cu, 20.0% or less of Co, 15.0% or less of Fe, 8.0% or less of W, 5.0% or less of Mn, and 0.5% or less of the total of C, B, Al, Ti, and Nb.
    Type: Application
    Filed: May 26, 2011
    Publication date: August 29, 2013
    Applicant: FUKUDA METAL FOIL & POWDER CO., LTD
    Inventors: Katsunori Otobe, Shinichi Nishimura
  • Patent number: 8486204
    Abstract: The hinge is made with a metal injection molding process from an alloy having at least: from 4 to 32 wt % Mn, from 16 to 37 wt % Cr, and from Fe that fills up the rest of the percentage.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: July 16, 2013
    Assignee: Shin Zu Shing Co., Ltd.
    Inventors: Yu-Chi Lu, Yu-Chan Hsieh, Shun-Tian Lin
  • Publication number: 20120304821
    Abstract: Hard particles for blending as a starting material in a sintered alloy contain 20 to 40 mass % of molybdenum, 0.5 to 1.0 mass % of carbon, 5 to 30 mass % of nickel, 1 to 10 mass % of manganese, 1 to 10 mass % of chromium, 5 to 30 mass % of cobalt, 0.05 to 2 mass % of yttrium, and the balance being inadvertent impurities and iron.
    Type: Application
    Filed: October 13, 2010
    Publication date: December 6, 2012
    Applicants: FINE SINTER CO., LTD, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kimihiko Ando, Tadayoshi Kikko, Yusaku Yoshida
  • Publication number: 20120301347
    Abstract: An austenitic stainless steel alloy consisting essentially of, in terms of weight percent ranges 0.15-0.5C; 8-37Ni; 10-25Cr; 2.5-5Al; greater than 0.6, up to 2.5 total of at least one element selected from the group consisting of Nb and Ta; up to 3Mo; up to 3Co; up to 1W; up to 3Cu; up to 15Mn; up to 2Si; up to 0.15B; up to 0.05P; up to 1 total of at least one element selected from the group consisting of Y, La, Ce, Hf, and Zr; <0.3Ti+V; <0.03N; and, balance Fe, where the weight percent Fe is greater than the weight percent Ni, and wherein the alloy forms an external continuous scale comprising alumina, and a stable essentially single phase FCC austenitic matrix microstructure, the austenitic matrix being essentially delta-ferrite free and essentially BCC-phase-free. A method of making austenitic stainless steel alloys is also disclosed.
    Type: Application
    Filed: May 24, 2011
    Publication date: November 29, 2012
    Applicant: UT-Battelle, LLC
    Inventors: Govindarajan MURALIDHARAN, Yukinori Yamamoto, Michael P. Brady
  • 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
  • Publication number: 20120276411
    Abstract: A coating composition for coating a substrate, the coating composition comprising: Carbon in an amount of between about 1.5 and 3 wt %; Chromium in an amount of between about 10 and 15 wt %; Iron in an amount of between about 1 and 3 wt %; Nickel in an amount of less than about 15 wt %; 10 Silicon in an amount of between about 1 to 3 wt % Tungsten in an amount of between about 10 to 55 wt % with the balance of wt % being Cobalt.
    Type: Application
    Filed: June 2, 2010
    Publication date: November 1, 2012
    Applicant: HUNPRENCO PRECISION ENGINEERS LIMITED
    Inventor: Eddie Neesom
  • Publication number: 20110293463
    Abstract: An alloy composition comprising iron present in the range of 49 atomic percent (at %) to 65 at %, nickel present in the range of 10.0 at % to 16.5 at %, cobalt optionally present in the range of 0.1 at % to 12 at %, boron present in the range of 12.5 at % to 16.5 at %, silicon optionally present in the range of 0.1 at % to 8.0 at %, carbon optionally present in the range of 2 at % to 5 at %, chromium optionally present in the range of 2.5 at % to 13.35 at %, and niobium optionally present in the range of 1.5 at % to 2.5 at %, wherein the alloy composition exhibits spinodal glass matrix microconstituents when cooled at a rate in the range of 103K/s to 104K/s and develops a number of shear bands per linear meter in the range of greater than 1.1×102 m?1 to 107 m?1 upon application of a tensile force applied at a rate of 0.001 s?1.
    Type: Application
    Filed: May 27, 2011
    Publication date: December 1, 2011
    Inventors: Daniel James BRANAGAN, Brian E. MEACHAM, Jason K. WALLESER, Jikou ZHOU, Alla V. SERGUEEVA
  • Publication number: 20110274579
    Abstract: A welding additive is provided. A component including a welding additive is also provided. The welding additive improves the weldability of a few nickel-based superalloys and includes the following contents (in wt %): 10.0%-20.0% chromium, 5.0%-15.0% cobalt, 0.0%-10.0% molybdenum, 0.5-3.5% tantalum, 0.0%-5.0% titanium, 1.5%-5.0% aluminum, 0.3%-0.6% boron, remainder nickel.
    Type: Application
    Filed: September 10, 2009
    Publication date: November 10, 2011
    Inventor: Nikolai Arjakine
  • 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: 20110059332
    Abstract: Composition containing a MCrAlY, wherein M is selected from the group consisting of cobalt (Co), nickel (Ni), iron (Fe) and mixtures thereof, and germanium in an amount of about 10% by weight or less of germanium. Coated articles coated with the composition are also provided.
    Type: Application
    Filed: September 10, 2009
    Publication date: March 10, 2011
    Inventors: Canan Uslu Hardwicke, Kivilcim Onal Hance, Paul Stephen DiMascio
  • Publication number: 20100303669
    Abstract: The present invention addresses the need for new austenitic steel compositions with higher creep strength and higher upper temperatures. The present invention also discloses a methodology for the development of new austenitic steel compositions with higher creep strength and higher upper temperatures.
    Type: Application
    Filed: July 20, 2010
    Publication date: December 2, 2010
    Applicant: Ut-Battelle, LLC
    Inventors: Roman I. Pankiw, Govindarajan Muralidharan, Vinod Kumar Sikka, Philip J. Maziasz
  • Publication number: 20100294472
    Abstract: The present disclosure relates to the use of a duplex stainless steel as heat exchanger material in a phosphoric acid production system using the wet method. The steel has the following composition in percent by weight: C max 0.03 Si max 0.5 Mn max 3 Cr 26-29 Ni 4.9-10 Mo 3-5 N 0.35-0.5 B max 0.0030 Co max 3.5 W max 3 Cu max 2 Ru max 0.3 balance Fe and normal occurring impurities.
    Type: Application
    Filed: October 24, 2008
    Publication date: November 25, 2010
    Applicant: SANDVIK INTELLECTUAL PROPERTY AB
    Inventors: Sabina Ronneteg, Knut Tersmeden, Anna-Lena Nyström
  • Publication number: 20100183475
    Abstract: This high chromium manganese and nitrogen bearing austenitic stainless alloys have superior strength, high corrosion resistance, excellent weldability and advanced thermal neutron absorption ability. These austenitic iron based stainless alloys have incorporated the neutron absorbing elements as single: gadolinium, hafnium, boron or as a mixture and its in-situ nitrides.
    Type: Application
    Filed: January 21, 2009
    Publication date: July 22, 2010
    Inventors: Roman Radon, Raphael Radon
  • Patent number: 7749431
    Abstract: A high-strength stainless steel, having good mechanical properties and corrosion resistance in a high-pressure hydrogen gas environment, is used as a container or other device for high-pressure hydrogen gas, and consists of, by mass %, C: not more than 0.04%, Si: not more than 1.0%, Mn: 7 to 30%, Cr: 15 to 22%, Ni: 5 to 20%, V: 0.001 to 1.0%, N: 0.20 to 0.50% and Al: not more than 0.10%, and the balance Fe and impurities. Among the impurities, P is not more than 0.030%, S is not more than 0.005%, and Ti, Zr and Hf are not more than 0.01% respectively, and the contents of Cr, Mn and N satisfy the relationship, 2.5Cr+3.4Mn?300N. The weld metal of the welded joint of the container or other device made of the said stainless steel satisfies the relationship, ?11?Nieq?1.1×Creq??8.
    Type: Grant
    Filed: April 18, 2005
    Date of Patent: July 6, 2010
    Assignee: Sumitomo Metal Industries, Ltd.
    Inventors: Masaaki Igarashi, Hiroyuki Semba, Mitsuo Miyahara, Kazuhiro Ogawa, Tomohiko Omura
  • Publication number: 20100092301
    Abstract: A component for a high-temperature steam turbine which operates at temperatures above 600° C., especially above 700° C., is formed of a nickel-based alloy. The negative influence of oxidation of the component which is induced by the superheated steam is prevented by the alloy which is used, having the following composition (in % by weight): C: ?0.2 Si: ?1.0 Mn: ?1.0 Cr: 22.0-25.0 Co: 15.0-25.0 Mo: ?3.0 Nb: ?2.0 Al: 1.0-3.0 Ti: 2.0-4.0 Fe: ?2.0 Zr: ?0.2 B: ??0.05 Ni: remainder.
    Type: Application
    Filed: October 27, 2008
    Publication date: April 15, 2010
    Inventor: Richard Brendon Scarlin
  • Publication number: 20090291016
    Abstract: A Ni-base casting superalloy containing, in masse, C: 0.05 to 0.2, Si: 0.01 to 1, Mn: 0.01 to 1, Co: 5 to 20, Fe: 10 or less, Cr: 15 to 25, and one kind or two kinds or more of Mo, W, and Re, with Mo+(W+Re)/2: 8 to 25, the balance being Ni and unavoidable impurities.
    Type: Application
    Filed: May 20, 2009
    Publication date: November 26, 2009
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Masayuki Yamada, Kiyoshi Imai, Kuniyoshi Nemoto, Shigekazu Miyashita, Kazutaka Ikeda, Takeo Suga
  • Publication number: 20090285717
    Abstract: Iron-nickel-chromium-silicon alloy having (in % by weight) 34 to 42% nickel, 18 to 26% chromium, 1.0 to 2.5% silicon, and additives of 0.05 to 1% Al, 0.01 to 1% Mn, 0.01 to 0.26% lanthanum, 0.0005 to 0.05% magnesium, 0.01 to 0.14% carbon, 0.01 to 0.14% nitrogen, max. 0.01% sulfur, max. 0.005% B, remainder iron and the usual impurities resulting from the production process.
    Type: Application
    Filed: January 15, 2008
    Publication date: November 19, 2009
    Inventor: Heike Hattendorf
  • Patent number: 7601230
    Abstract: Alloy compositions suitable for fabricating medical devices, such as stents, are disclosed. In certain embodiments, the compositions have small amounts of nickel, e.g., the compositions can be substantially free of nickel.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: October 13, 2009
    Assignee: Scimed Life Systems, Inc.
    Inventor: Charles Horace Craig
  • Publication number: 20090222079
    Abstract: A medical device includes an alloy having chromium, niobium, and platinum, wherein the alloy forms at least a portion of the medical device.
    Type: Application
    Filed: April 23, 2009
    Publication date: September 3, 2009
    Applicant: BOSTON SCIENTIFIC SCIMED, INC.
    Inventor: Jonathan S. Stinson
  • Patent number: 7531129
    Abstract: A high-strength stainless steel, having good mechanical properties and corrosion resistance in a high-pressure hydrogen gas environment, and excellent in stress corrosion cracking resistance, and a container or other device for high-pressure hydrogen gas, which is made of the said stainless steel, are provided. The stainless steel is characterized in that it consists of, by mass %, C: not more than 0.02%, Si: not more than 1.0%, Mn: 3 to 30%, Cr: more than 22% but not more than 30%, Ni: 17 to 30%, V: 0.001 to 1.0%, N: 0.10 to 0.50% and Al: not more than 0.10%, and the balance Fe and impurities. Among the impurities, P is not more than 0.030%, S is not more than 0.005%, and Ti, Zr and Hf are not more than 0.01% respectively, and the contents of Cr, Mn and N satisfy the following relationship [1]: 5Cr+3.4 Mn?500 N??[1].
    Type: Grant
    Filed: April 18, 2005
    Date of Patent: May 12, 2009
    Assignee: Sumitomo Metal Industries, Ltd.
    Inventors: Masaaki Igarashi, Hiroyuki Semba, Mitsuo Miyahara, Kazuhiro Ogawa, Tomohiko Omura
  • Publication number: 20090053100
    Abstract: The present invention addresses the need for new austenitic steel compositions with higher creep strength and higher upper temperatures. The present invention also discloses a methodology for the development of new austenitic steel compositions with higher creep strength and higher upper temperatures.
    Type: Application
    Filed: December 7, 2006
    Publication date: February 26, 2009
    Inventors: Roman I. Pankiw, Govindarajan Muralidharan, Vinod Kumar Sikka, Philip J. Maziasz
  • Publication number: 20080253919
    Abstract: A wear-resistant material comprising an alloy that contains: 1.5-5.5 wt. % carbon, 0.1-2.0 wt. % silicon, max. 2.0 wt. % manganese, 3.5-30.0 wt. % chromium, 0.3-10 wt. % molybdenum, 0-10 wt. % tungsten, 0.1-30 wt. % vanadium, 0-12 wt. % niobium, 0.1-12 wt. % titanium and 1.3-3.5 wt. % nickel, the remainder being comprised of iron and production-related impurities, whereby the carbon content fulfils the following condition: CAlloy [w %]=S1+S2+S3 where S1=(Nb+2(Ti+V?0.9))/a, S2=(Mo+W/2+Cr?b)/5, S3=c+(TH?900)·0.0025, where 7<a<9, 6<b<8, 0.3<c<0.5 and 900° C.<TH<1,220° C. Also. method for producing the wear-resistant material and to uses of the material.
    Type: Application
    Filed: May 2, 2006
    Publication date: October 16, 2008
    Applicant: KOPPERN ENTWICKLUNGS GMBH & CO. KG
    Inventors: Werner Theisen, Andreas Packeisen, Hans Berns
  • Publication number: 20080159905
    Abstract: A controlled combustion synthesis apparatus comprises an ignition system, a pressure sensor for detecting internal pressure, a nitrogen supply, a gas pressure control valve for feeding nitrogen and exhausting reaction gas, means for detecting the internal temperature of the reaction container, a water cooled jacket, and a cooling plate. A temperature control system controls the temperature of the reaction container by controlling the flow of cooling water supplied to the jacket and the cooling plate in response to the detected temperature. By combustion synthesizing, while controlling the internal pressure and temperature, the apparatus can synthesize a silicon alloy including 30-70 wt. % silicon, 10-45 wt. % nitrogen, 1-40 wt. % aluminum, and 1-40 wt % oxygen.
    Type: Application
    Filed: April 19, 2007
    Publication date: July 3, 2008
    Applicant: ISMAN J Corporation
    Inventors: Toshiyuki Watanabe, Masafumi Matsushita, Toshitaka Sakurai, Kazuya Sato, Yoko Matsushita
  • Patent number: 6908468
    Abstract: The subject invention relates to a material for magnetic resonance imaging, and apparatus incorporating such material. The subject material can comprise cobalt, nickel, and chromium and can be used in nuclear spin tomography MRI. In specific embodiments, the subject material can be used in stents, mechanical springs, and guide wires.
    Type: Grant
    Filed: February 22, 2002
    Date of Patent: June 21, 2005
    Assignee: MRI Devices Daum GmbH
    Inventor: Wolfgang Daum
  • Publication number: 20040033158
    Abstract: A precipitation hardened Co—Ni based heat-resistant alloy is composed of, all by weight, not more than 0.05% of C; not more than 0.5% of Si; not more than 1.0% of Mn; 25 to 45% of Ni; 13 to 22% of Cr; 10 to 18% of Mo or 10 to 18% of Mo+½W; 0.1 to 5.0% of Nb; 0.1 to 5.0% of Fe; and further at least one kind of 0.007 to 0.10% of REM; 0.001 to 0.010% of B; 0.0007 to 0.010% of Mg and 0.001 to 0.20% of Zr; the balance of substantially Co and inevitable impurities, and Co3Mo or Co7Mo6 is precipitated in boundaries between a fine twin structure and a parent phase.
    Type: Application
    Filed: July 3, 2003
    Publication date: February 19, 2004
    Inventors: Akihiko Chiba, Shirou Takeda, Michihiko Ayada, Shigemi Sato, Shigeki Ueta, Toshiharu Noda
  • Patent number: 6685881
    Abstract: Disclosed is an austenitic stainless cast steel which has such a good heat resistance as can be used at a high temperature higher than 950° C. and a good machinability. The stainless cast steel consists essentially of, by weight %, C: 0.2-0.4%, Si: 0.5-2.0%, Mn: 0.5-2.0%, P: up to 0.10%, S: 0.04-0.2%, Ni: 8.0-42.0%, Cr: 15.0-28.0%, W: 0.5-7.0%, Nb: 0.5-2.0%, Al: up to 0.02%, Ti: up to 0.05%, N: up to 0.15%, Se: 0.001-0.50% and the balance of Fe and inevitable impurities.
    Type: Grant
    Filed: September 20, 2001
    Date of Patent: February 3, 2004
    Assignee: Daido Steel Co., Ltd.
    Inventors: Shuji Hamano, Michio Okabe
  • Patent number: 6592811
    Abstract: A magnetic material includes a main component expressed by a general formula CoNiFeX, wherein X is at least one element selected from the group consisting of Cr, TI, V, Ru, Rh, Os, Ir and Pt, and wherein weight percentages a, b, c and d of Co, Ni, Fe and X contents, respectively, in the main component are such that 40%≦a≦75%, 5%≦b≦20%, 10%≦c≦30%, and 0%≦d≦10%.
    Type: Grant
    Filed: October 5, 2000
    Date of Patent: July 15, 2003
    Assignee: NEC Corporation
    Inventors: Mikiko Saito, Nobuyuki Ishiwata, Tsutomu Ishi, Hiroaki Honjo, Tamaki Toba, Shinsaku Saito, Yoshihiro Nonaka
  • Patent number: 6562293
    Abstract: An article of equipment intended to be submerged in molten zinc and low percentage aluminum/zinc melts, said article containing an alloy material comprised of carbon, chromium, nickel, tungsten, molybdenum, vanadium, niobium (columbium), cobalt, boron, iron and/or zirconium, wherein vanadium is present in an amount sufficient to limit the &ggr;-region.
    Type: Grant
    Filed: November 6, 2000
    Date of Patent: May 13, 2003
    Assignee: Alphatech, Inc.
    Inventor: Jorge A. Morando
  • Patent number: 6485679
    Abstract: A heat resistant austenitic stainless steel with high strength at elevated temperatures, good steam oxidation resistance, good fire side corrosion resistance, and a sufficient structural stability, suitable for use in boilers operating at high temperatures has a composition (by weight) of. 0.04 to 0.10% carbon (C), not more than 0.4% silicon (Si), not more than 0.6% manganese (MN), 20 to 27% chromium (Cr), 22.5 to 32% nickel (Ni), not more than 0.5% molybdenum (Mo), 0,20 to 0.60% niobium (Nb), 0.4 to 4.0% tungsten (W), 0.10 to 0.30% nitrogen (N), 0.002 to 0.008% boron (B), less than 0.05% aluminium (Al), at least one of the elements Mg and Ca in amounts less than 0.010% Mg and less than 0.010% Ca, and the balance being iron and inevitable impuities.
    Type: Grant
    Filed: February 16, 2000
    Date of Patent: November 26, 2002
    Assignee: Sandvik AB
    Inventors: Ann Sundström, Goucai Chai
  • Patent number: 6485678
    Abstract: A unique iron base alloy for wear resistant applications, characterized in one aspect by its hardening ability when exposed to a certain temperature range, is useful for valve seat insert applications. The alloy also possesses excellent wear resistance, hot hardness and oxidation resistance. The alloy comprises less than 0.1 wt % carbon; about 18 to about 32 wt % molybdenum, about 6 to about 15 wt % chromium, about 1.5 to about 3% silicon, about 8 to about 15 wt % cobalt and at least 40% iron, with less than 0.5 wt % nickel. In another aspect, for lower temperature applications, the cobalt is optional, the nickel content can be up to 14 wt %, but the molybdenum must be in the range of about 29% to about 36%. In one further aspect, for higher temperature applications, the cobalt is optional, but may be used up to 15 wt %, nickel must be used at a level of between about 3 and about 14 wt %, and the molybdenum will be in the range of about 26 to about 36 wt %.
    Type: Grant
    Filed: June 20, 2000
    Date of Patent: November 26, 2002
    Assignee: Winsert Technologies, Inc.
    Inventors: Xuecheng Liang, Gary R. Strong
  • Publication number: 20020168285
    Abstract: A cobalt-based alloy composition having a relatively small lanthanum addition and relatively large carbon content provides remarkable oxidation resistance and wear resistance at high temperatures. The cobalt-based alloy composition has a suitable combination of ductility and wear resistance at high temperatures to be effective as a hard face material for limiting the effects of chattering of blades during the operation of a gas turbine engine. Further, the cobalt-based alloy has a suitable combination of ductility, oxidation resistance and wear resistance and thus represents an improved hard facing material for the blade components of gas turbine engine.
    Type: Application
    Filed: October 29, 2001
    Publication date: November 14, 2002
    Inventors: Wayne C. Blake, James E. Arnold
  • Publication number: 20020155025
    Abstract: The subject invention relates to a material for magnetic resonance imaging, and apparatus incorporating such material. The subject material can comprise cobalt, nickel, and chromium and can be used in nuclear spin tomography MRI. In specific embodiments, the subject material can be used in stents, mechanical springs, and guide wires.
    Type: Application
    Filed: February 22, 2002
    Publication date: October 24, 2002
    Inventor: Wolfgang Daum
  • Patent number: 6355212
    Abstract: The invention is directed to anti-corrosive alloys and relates in particular to an alloy containing cobalt, chromium, aluminum, yttrium, silicon, a metal from the second main group, together with the corresponding oxide, in the following proportions: chromium (Cr) 26.0-30%; aluminum (Al) 5.5-13.0%; yttrium (Y) 0.3-1.5%; silicon (Si) 1.5-4.5%; metal from the second main group (magnesium, calcium, barium, strontium) 0.1-2.0%; oxide of the corresponding metal from the second main group 0.1-2.0%; cobalt (Co) remaining percentage. Preferably, tantalum (Ta) is also added in a proportion of 0.5-4.0%, and the remaining percentage of cobalt is replaced by a remaining percentage of Me, Me being understood to mean a metal which may be nickel (Ni) or iron (Fe) or cobalt (Co) or a composition comprising Ni—Fe—Co, Ni—Fe, Ni—Co, Co—Fe.
    Type: Grant
    Filed: January 5, 2000
    Date of Patent: March 12, 2002
    Assignee: Turbocoating SpA
    Inventor: Nelso Antolotti
  • Patent number: 6350324
    Abstract: Soft magnetic alloy of the iron-nickel type, the chemical composition of which comprises, in % by weight: 34%≦Ni≦40%; 7%≦Cr≦10%; 0.5%≦Co≦3%; 0.1%≦Mn≦1%; O≦0.007%; S≦0.002%; N≦0.004%; with N+S+O≦0.01%; iron and impurities 5 resulting from the production process. Use in motors especially suited for use in horology.
    Type: Grant
    Filed: March 27, 2000
    Date of Patent: February 26, 2002
    Assignee: Imphy Ugine Precision
    Inventors: Thierry Waeckerle, Lucien Coutu, Laurent Chaput
  • Patent number: 6248292
    Abstract: An overlaying alloy containing no Cr or a reduced amount of Cr, in which an effective amount of Mo oxide is formed even in a weak oxidizing atmosphere such as a combustion atmosphere of diesel engines and engines using CNG, LPG or other gases as a fuel to provide an improved non-damaging property and wear resistance. An overlaying alloy comprising 20-70 wt % Mo, 0.5-3 wt % C, 5-40 wt % Ni, and the balance being Fe and unavoidable impurities, which contains no Cr to facilitate formation of Mo oxide and is advantageously applied to the parts on which an oxide coating is not easily formed such as the engine parts subject to a lower temperature combustion atmosphere. An overlaying alloy comprising 20-60 wt % Mo, 0.2-3 wt % C, 5-40 wt % Ni, 0.1-10 wt % Cr, and the balance of Fe and unavoidable impurities, which contains a small amount of Cr to control formation of Mo oxide and is advantageously applied to the parts on which an oxide coating is relatively easily formed.
    Type: Grant
    Filed: February 24, 1999
    Date of Patent: June 19, 2001
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kimihiko Ando, Akio Yasuda, Akira Manabe, Eiji Ito
  • Patent number: 6168757
    Abstract: An article of equipment intended to be submerged in molten zinc, molten aluminum and mixtures thereof, said article containing an alloy material comprised of: Percent Carbon 1.6-2.6 Chromium 15.0-30.0 Tungsten 10.0-30.0 Molybdenum 2.0-8.0 Iron 10.0-50.0 and including, vanadium, niobium, cobalt, boron, and manganese and being substantially free of silicon.
    Type: Grant
    Filed: August 11, 1997
    Date of Patent: January 2, 2001
    Assignee: Alphatech, Inc.
    Inventor: Jorge A. Morando
  • Patent number: 6004507
    Abstract: An article suitable for submergence in molten zinc, aluminum and aluminum/zinc melts. The article is formed of an alloy comprising from greater than 1.0% to less than 5.0% carbon; from greater to 10.0% to less than 30.0% chromium; from greater than or equal to 0.0% nickel to less than 30.0% nickel; from greater than 1.0% to less than 15.0% tungsten; from greater than 1.0% to less than 10.0% molybdenum; from greater than 0.0% to less than 10.0% vanadium; from greater than 0.0% to less than 10.0% niobium; from greater than 0.0% to less than 20.0% percent cobalt; from greater than 0.0% to less than 5.0% boron; from greater than 10.0% to less than 50.0% iron; from greater than or equal to 0.0% to less than or equal to 6.0% zirconium; from greater than 2 to less than 6.5% manganese; and from greater than or equal to 0.0% to less than 1.0% silicon.
    Type: Grant
    Filed: October 27, 1997
    Date of Patent: December 21, 1999
    Assignee: Alphatech, Inc.
    Inventor: Jorge A. Morando
  • Patent number: 5951789
    Abstract: A heat resisting alloy for use in exhaust valves low in price and excellent in the cold workability and possible to be formed into valve shapes through the cold or warm working, which consists by weight percentage of C: 0.01.about.0.1%, Si.ltoreq.2%, Mn.ltoreq.2%, Cr: 12.about.25%, Nb+Ta: 0.2.about.2.0%, Ti.ltoreq.3.5%, Al: 0.5.about.3.0%, Ni: 25.about.45%, Cu: 0.1.about.5.0%, optionally at least one element selected from W.ltoreq.3%, Mo.ltoreq.3%, and V.ltoreq.1% with (1/2W+Mo+V).ltoreq.3%, Co.ltoreq.5% with Ni+Co: 25.about.45%, Ca+Mg: 0.001.about.0.01%, one or both of B.ltoreq.0.01% and Zr: 0.001.about.0.1%, and the balance of Fe and incidental impurities.
    Type: Grant
    Filed: October 22, 1997
    Date of Patent: September 14, 1999
    Assignee: Daido Tokushuko Kabushiki Kaisha
    Inventors: Shigeki Ueta, Toshiharu Noda, Michio Okabe
  • Patent number: 5882440
    Abstract: A heat-resistant alloy comprising, as expressed in % by weight, 0.03 to 0.1% of C, 0.2 to 0.7% of Si, 0.2 to 0.7% of Mn, 42 to 60% of Ni, 25 to 35%0 of Cr, 8 to 20% of W, over 0% to not more than 8% Mo, over 0% to not more than 5% of Co, and the balance substantially Fe. The alloy has improved resistance to compressive deformation and oxidation resistance for use in oxidizing atmospheres having a high temperature of 1250.degree. C.
    Type: Grant
    Filed: September 12, 1997
    Date of Patent: March 16, 1999
    Assignee: Kubota Corporation
    Inventors: Akira Shinosaki, Toru Kawai, Yoshihide Shida