Iron(fe) Or Iron Base Alloy Patents (Class 148/540)
  • Patent number: 10978227
    Abstract: An alloy is provided which consists of Fe100?a?b?c?d?x?y?zCuaNbbMc TdSixByZz and up to 1 at % impurities, M being one or more of the elements Mo, Ta and Zr, T being one or more of the elements V, Mn, Cr, Co and Ni, Z being one or more of the elements C, P and Ge, 0 at %?a<1.5 at %, 0 at %?b<2 at %, 0 at %?(b+c)<2 at %, 0 at %?d<5 at %, 10 at %<x<18 at %, 5 at %<y<11 at % and 0 at %?z<2 at %. The alloy is configured in tape form and has a nanocrystalline structure in which at least 50 vol % of the grains have an average size of less than 100 nm, a hysteresis loop with a central linear region, a remanence ratio Jr/Js of <0.1 and a coercive field strength Hc to anisotropic field strength Ha ratio of <10%.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: April 13, 2021
    Assignee: Vacuumschmelze GmbH & Co. KG
    Inventors: Giselher Herzer, Christian Polak, Viktoria Budinsky
  • Patent number: 10760885
    Abstract: The present invention is directed to composite projectiles and the manufacture thereof for a wide range of purposes and applications through variation of the composite makeup of such composite projectiles. Embodiments of the invention include composite projectiles configured for manufacture using melt-flow manufacturing methods use-cases and composite projectiles having specialized performance for more effective use in specific use-cases.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: September 1, 2020
    Assignee: SMART NANOS, LLC.
    Inventors: Robert Folaron, Howard D. Kent, Jennifer Folaron
  • Patent number: 10702944
    Abstract: An alloy structure has an arbitrary shape dimension which has high uniformity in the distribution of the element composition. The alloy structure contains Fe and at least four elements, which are selected from the group consisting of elements from atomic number 13 to atomic number 79 included in Group 3 to Group 16 of the periodic table of the elements and have a ratio of the atomic radius to an Fe atom of 0.83 or more but 1.17 or less, each of Fe and the four elements is contained in an atomic concentration range of 5 at % or more but 30 at % or less, a difference in atomic concentration between at least four elements among the at least four elements and Fe is in a range of less than 3 at %, and the alloy structure has, a column crystal in which the at least four elements and Fe are solid-dissolved.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: July 7, 2020
    Assignee: HITACHI METALS, LTD.
    Inventors: Takahiko Kato, Kousuke Kuwabara, Tadashi Fujieda, Kinya Aota, Isamu Takahashi, Hiroyuki Satake, Kenji Yamaga, Hajime Murakami
  • Patent number: 10337091
    Abstract: A high heat resistant steel with low nickel has high tensile strength and high heat resistance at a high temperature, wherein a value of X/Y is 0.44 to 0.47, and wherein the X is a value calculated by Equation 1, [Equation 1 is X=wt % of Cr+wt % of 1.5×Si+wt % of 0.5×Nb], and the Y is a value calculated by Equation 2 [Equation 2 is Y=wt % of Ni+wt % of 0.5×Mn+wt % of 30×C+wt % of 30×N].
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: July 2, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Jung-Suk Lee, Yeun-Chang Choi
  • Patent number: 9909198
    Abstract: The low alloy steel for oil country tubular goods according to the present invention has a chemical composition containing, by mass percent, C: 0.56 to 1.00%, Si: 0.05 to 0.50%, Mn: 0.05 to 1.00%, P: at most 0.025%, S: at most 0.010%, Al: 0.005 to 0.100%, Mo: 0.40 to 1.00%, V: 0.05 to 0.30%, and O: at most 0.010%, the balance being Fe and impurities, wherein the yield stress thereof is at least 862 MPa, and the half-value width of a [211] crystal surface obtained by X-ray diffraction is at most 0.50°.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: March 6, 2018
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Tomohiko Omura, Yuji Arai, Kaori Kawano, Akihiro Sakamoto, Kazuo Okamura, Kenji Yamamoto, Keiichi Kondo
  • Patent number: 9797034
    Abstract: A high strength and high toughness cast steel material of the invention has a composition comprising 0.10 to 0.20% by mass of C, 0.10 to 0.50% by mass of Si, 0.40 to 1.20% by mass of Mn, 2.00 to 3.00% by mass of Ni, 0.20 to 0.70% by mass of Cr, and 0.10 to 0.50% by mass of Mo, and further comprising Fe and unavoidable impurities. The high strength and high toughness cast steel material of the invention is produced by subjecting an ingot having the above composition to annealing at 1,000 to 1,100° C., quenching at 850 to 950° C., tempering at 610 to 670° C., and then, if desired, stress-relief annealing at less than 610° C.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: October 24, 2017
    Assignee: THE JAPAN STEEL WORKS, LTD.
    Inventors: Yoshihiro Gotoh, Shinji Tanaka, Tsukasa Azuma
  • Patent number: 9301515
    Abstract: A copper-zinc alloy that is particularly suitable as a material for a horseshoe includes at least the following components, in percent by weight: 59-73% of copper, 2.7-8.5% of manganese, 1.5-6.3% of aluminum, 0.2-4% of silicon, 0.2-3% of iron, 0-2% of lead, 0-2% of nickel, 0-0.4% of tin, balance zinc and unavoidable impurities.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: April 5, 2016
    Assignee: Diehl Metall Stiftung & Co. KG
    Inventors: Norbert Gaag, Juergen Geise, Freidrich Gebhard
  • Patent number: 9157138
    Abstract: A multi-phase steel sheet having microstructure having in combination ferrite, martensite of between 3% and 65% by volume, and at least one microstructure selected from the group consisting of, bainite and retained austenite, and having fine complex precipitates selected from the group of TiC, NbC, TiN, NbN, (Ti.Nb)C, (Ti.Nb)N, and (Ti.Nb)(C.N) particles having at least 50% smaller than 20 nm in size, and physical properties having tensile strength greater than about 780 megapascals and at least one of the properties of elongation greater than about 10%, yield ratio greater than about 70%, and hole expansion ratio greater than about 50%.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: October 13, 2015
    Assignee: Nucor Corporation
    Inventor: Weiping Sun
  • Patent number: 8999085
    Abstract: A high-ductility, high-strength and high Mn steel strip used for steel strips of automobiles requiring superior formability and high strength, a plated steel strip produced by using the same, and a manufacturing method thereof are disclosed. The high Mn steel strip comprises, by weight %, 0.2˜1.5% of C, 10˜25% of Mn, 0.01˜3.0% of Al, 0.005˜2.0% of Si, 0.03% or less of P, 0.03% or less of S, 0.040% or less of N, and the balance of Fe and other unavoidable impurities. The high-ductility, high-strength and high Mn steel strip, and the plated steel strip produced by using the same have superior surface properties and plating characteristics.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: April 7, 2015
    Assignee: Posco
    Inventors: Seong-Ju Kim, Kwang-Geun Chin, Hyun-Gyu Hwang, Sung-Kyu Kim, Il-Ryoung Sohn, Young-Kook Lee, Oh-Yeon Lee
  • Patent number: 8986472
    Abstract: The present invention is directed at metal alloys that are capable of forming spinodal glass matrix microconstituent structure. The alloys are iron based and include nickel, boron, silicon and optionally chromium. The alloys exhibit ductility and relatively high tensile strengths and may be in the form of sheet, ribbon, wire, and/or fiber. Applications for such alloys are described.
    Type: Grant
    Filed: November 2, 2011
    Date of Patent: March 24, 2015
    Assignee: The NanoSteel Company, Inc.
    Inventors: Daniel James Branagan, Brian E. Meacham, Jason K. Walleser, Alla V. Sergueeva, Andrew T. Ball, Grant G. Justice
  • Publication number: 20150028724
    Abstract: A product, such as one or more thin sheets, each containing a single or near-single crystalline inclusion-containing magnetic microstructure, is provided. In one embodiment, the inclusion-containing magnetic microstructure is a Galfenol-carbide microstructure. Various methods and devices, as well as compositions, are also described.
    Type: Application
    Filed: January 31, 2013
    Publication date: January 29, 2015
    Inventors: Eric Summers, Rob Meloy
  • Patent number: 8882937
    Abstract: The invention relates to a steel material composition, in particular for producing piston rings and cylinder sleeves, containing the following elements in the given fractions in relation to 100% by weight of the steel material: 0.03-2.0% by weight B, 0.5-1.2% by weight C, 70.1-97.3% by weight Fe, 0.1-3.0% by weight Mn and 2.0-10.0% by weight Si. Said composition can be produced by melting the starting materials and casting the melt in a pre-fabricated mold.
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: November 11, 2014
    Assignee: Federal-Mogul Burscheid GmbH
    Inventor: Laszlo Pelsoeczy
  • Patent number: 8882941
    Abstract: An aspect of the present disclosure relates to an alloy composition, which may include 52 atomic percent to 68 atomic percent iron, 13 to 21 atomic percent nickel, 2 to 12 atomic percent cobalt, 10 to 19 atomic percent boron, optionally 1 to 5 atomic percent carbon, and optionally 0.3 to 16 atomic percent silicon. The alloy may include 5 to 95% by volume of one or more spinodal microconstituents, wherein the microconstituents exhibit a length scale less than 50 nm in a glass matrix.
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: November 11, 2014
    Assignee: The NanoSteel Company, Inc.
    Inventors: Daniel James Branagan, Jeffrey E. Shield, Alla V. Sergueeva
  • Publication number: 20140283956
    Abstract: The disclosure is directed to a method of forming high-aspect-ratio metallic glass articles that are substantially free of defects and cosmetic flaws by means of rapid capacitive discharge forming. Metallic glass alloys that are stable against crystallization for at least 100 ms at temperatures where the viscosity is in the range of 100 to 104 Pa-s are considered as suitable for forming such high-aspect-ratio articles.
    Type: Application
    Filed: March 17, 2014
    Publication date: September 25, 2014
    Applicant: Glassimetal Technology, Inc.
    Inventors: Joseph P. Schramm, Jong Hyun Na, Marios D. Demetriou, David S. Lee, William L. Johnson
  • Publication number: 20140251500
    Abstract: New magnetic materials containing cerium, iron, and small additions of a third element are disclosed. These materials comprise compounds Ce(Fe12?xMx) where x=1-4, having the ThMn12 tetragonal crystal structure (space group I4/mmm, #139). Compounds with M=B, Al, Si, P, S, Sc, Co, Ni, Zn, Ga, Ge, Zr, Nb, Hf, Ta, and W are identified theoretically, and one class of compounds based on M=Si has been synthesized. The Si cognates are characterized by large magnetic moments (4?Ms greater than 1.27 Tesla) and high Curie temperatures (264?Tc?305° C.). The Ce(Fe12?xMx) compound may contain one or more of Ti, V, Cr, and Mo in combination with an M element. Further enhancement in Tc is obtained by nitriding the Ce compounds through heat treatment in N2 gas while retaining the ThMn12 tetragonal crystal structure; for example CeFe10Si2N1.29 has Tc=426° C.
    Type: Application
    Filed: March 6, 2013
    Publication date: September 11, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: CHEN ZHOU, FREDERICK E. PINKERTON, JAN F. HERBST
  • Publication number: 20140202596
    Abstract: A method of forming a bulk metallic glass is provided. The method includes overheating the alloy melt to a temperature above a threshold temperature, Ttough, associated with the metallic glass demonstrating substantial improvement in toughness compared to the toughness demonstrated in the absence of overheating the melt above Tliquidus, and another threshold temperature, TGFA, associated with the metallic glass demonstrating substantial improvement in glass-forming ability compared to the glass-forming ability demonstrated in the absence of overheating the melt above Tliquidus. After overheating the alloy melt to above Ttough and TGFA, the melt may be cooled and equilibrated to an intermediate temperature below both Ttough and TGFA but above Tliquidus, and subsequently quenched at a high enough rate to form a bulk metallic glass.
    Type: Application
    Filed: January 22, 2014
    Publication date: July 24, 2014
    Applicant: GLASSIMETAL TECHNOLOGY, INC.
    Inventors: Jong Hyun NA, Michael FLOYD, David S. LEE, Marios D. DEMETRIOU, William L. JOHNSON, Glenn GARRETT
  • Patent number: 8668783
    Abstract: A steel wire rod is obtained, in which a gas flow rate during gas stirring in molten steel treatment is controlled to be 0.0005 Nm3/min to 0.004 Nm3/min per molten steel of 1 ton, thereby the rod satisfies a specified composition, and oxide base inclusions in any section including an axis line of the steel wire rod satisfy the following composition X, the inclusions having width of 2 ?m or more perpendicular to a rolling direction, wherein the number of the oxide base inclusions of the following composition A is 1 to 20, and the number of the oxide base inclusions of the following composition B is less than 1: composition X: when composition of inclusions is converted to Al2O3+MgO+CaO+SiO2+MnO=100%, Al2O3+CaO+SiO2?70% is given. composition A: when composition of inclusions is converted to Al2O3+CaO+SiO2=100%, 20%?CaO?50% and Al2O3?30% are given; and composition B: when composition of inclusions is converted to Al2O3+CaO+SiO2=100%, CaO>50% is given.
    Type: Grant
    Filed: July 21, 2006
    Date of Patent: March 11, 2014
    Assignee: Kobe Steel, Ltd.
    Inventors: Sei Kimura, Tsuyoshi Mimura, Tetsushi Deura
  • Publication number: 20140053956
    Abstract: The disclosure refers to a method for manufacturing a three-dimensional article, the method including successively building up the article from a metallic base material by means of an additive manufacturing process, thereby creating an article with a substantial anisotropy of its properties and heat treating the manufactured article at a sufficiently high temperature to reduce the anisotropy significantly by recrystallization and/or grain coarsening.
    Type: Application
    Filed: August 21, 2013
    Publication date: February 27, 2014
    Applicant: ALSTOM Technology Ltd
    Inventors: Thomas ETTER, Julius SCHURB, Lukas Emanuel RICKENBACHER, Andreas KÜNZLER
  • Patent number: 8657967
    Abstract: The present invention is related to process for producing an amorphous Fe-based bulk metallic glass product, formed of an alloy having a chemical formula of Fe100-a-b-c-d-x-y MaNbbSicBdIxJy wherein: • M is Co and/or Ni, •I is one or more elements of the group consisting of Al, Cr, Cu, Mn, C and P, •J is one or more elements of the group consisting of Ti, S, N and O and wherein a, b, c, d, x and y are satisfying the following conditions: 0 wt. %<a?46. 1 wt. %, 5.4 wt. %?b?12.4 wt. %, 2.2 wt. %?c?4.4 wt. %, 2 wt. %<d?6 wt. %, x?2 wt. % and y?0.2 wt. %, the process comprising the steps of producing a master alloy by melting starting materials, comprising Fe-containing alloys, and by melting said master and pouring the molten alloy into a mold.
    Type: Grant
    Filed: April 15, 2009
    Date of Patent: February 25, 2014
    Assignee: OCAS Onderzoekscentrum voor Aanwending van Staal N.V.
    Inventors: Daniel Ruiz Romera, Serge Claessens, Marc De Wulf, Nele Van Steenberge, Joachim Antonissen
  • Publication number: 20140041766
    Abstract: The invention relates to a method for manufacturing a ferritic-austenitic stainless steel having good formability, good weldability and high elongation. The stainless steel containing the sum of carbon and nitrogen C+N in the range 0.17-0.295 in weight % in which sum C+N a lower carbon content to avoid sensitisation during welding is compensated by an increased nitrogen content to maintain formability is heat treated so that the microstructure of the stainless steel contains 45-75% austenite in the heat treated condition, the remaining microstructure being ferrite, and the measured Md30 temperature of the stainless steel is adjusted between 0 and 50° C. in order to utilize the transformation induced plasticity (TRIP) for improving the formability of the stainless steel.
    Type: Application
    Filed: April 18, 2012
    Publication date: February 13, 2014
    Applicant: OUTOKUMPU OYJ
    Inventors: James Oliver, Jan Y. Jonsson, Juho Talonen, Rachel Petersson, Jan-Olof Andersson
  • Patent number: 8641840
    Abstract: The present disclosure is directed and formulations and methods to provide non-stainless steel alloys having relative high strength and ductility. The alloys may be provided in sheet or pressed form and characterized by their particular alloy chemistries and identifiable crystalline grain size morphology. The alloys are such that they include boride pinning phases. In what is termed a Class 1 Steel the alloys indicate tensile strengths of 630 MPa to 1100 MPa and elongations of 10-40%. Class 2 Steel indicates tensile strengths of 875 MPa to 1590 MPa and elongations of 5-30%. Class 3 Steel indicates tensile strengths of 1000 MPa to 1750 MPa and elongations of 0.5-15%.
    Type: Grant
    Filed: April 16, 2013
    Date of Patent: February 4, 2014
    Assignee: The NanoSteel Company, Inc.
    Inventors: Daniel James Branagan, Brian E. Meacham, Jason K. Walleser, Andrew T. Ball, Grant G. Justice, Brendan L. Nation, Sheng Cheng, Alla V. Sergueeva
  • Patent number: 8636857
    Abstract: A method to obtain a manganese steel alloy having a percentage weight of carbon varying from about 0.5% to about 2%, a percentage weight of manganese varying from about 10% to about 20%, and a percentage weight of titanium varying from about 0.01% to about 5%. The method comprises at lest a step wherein a determinate quantity of steel scarp with manganese or steel scarp with carbon is melted in order to define a metal bath, a step wherein, in order to deoxidize the metal bath a determinate percentage weight of aluminum is added, a step wherein a determinate percentage weight of nitrogen is added, a step wherein a determinate percentage weight of titanium is added, and a step wherein the metal bath is cast at a determinate temperature.
    Type: Grant
    Filed: May 12, 2005
    Date of Patent: January 28, 2014
    Assignee: F.A.R.—Fonderie Acciaierie ROIALE SpA
    Inventors: Alberto Andreussi, Primo Andreussi, Enrico Veneroso, Eddy Pontelli
  • Patent number: 8562713
    Abstract: A combined arc furnace, ladle metallurgical furnace and vacuum degassing system having the flexibility to produce at least non-vacuum arc remelt, vacuum arc remelt, vacuum oxygen decarburized non-vacuum arc remelt, and vacuum oxygen decarburized vacuum arc remelt steels from one off to continuous casting end uses in steady state or randomized order which utilizes only a minimum of energy attributable to preheating hot metal contacting components of the system followed by heat loss reduction of the components and use of a carryover heel in the arc furnace, in which the throughput of the system is limited solely by the melting capacity of the arc furnace.
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: October 22, 2013
    Assignee: A. Finkl & Sons Co.
    Inventors: John A. Guliana, Guy A. Brada, Christian H. Ericksen, Bruce C. Liimatainen, Algirdas A. Underys
  • Publication number: 20130263977
    Abstract: A method for manufacturing a component or coupon made of a high temperature superalloy based on Ni, Co, Fe or combinations thereof includes forming the component or coupon using a powder-based additive manufacturing process. The manufacturing process includes completely melting the powder followed by solidifying the powder. The formed component or coupon is subjected to a heat treatment so as to optimize specific material properties. The heat treatment takes place at higher temperatures compared to cast components or coupons.
    Type: Application
    Filed: October 31, 2012
    Publication date: October 10, 2013
    Applicant: ALSTOM TECHNOLOGY LTD
    Inventor: ALSTOM Technology Ltd
  • Publication number: 20130233452
    Abstract: The present disclosure is directed and formulations and methods to provide non-stainless steel alloys having relative high strength and ductility. The alloys may be provided in sheet or pressed form and characterized by their particular alloy chemistries and identifiable crystalline grain size morphology. The alloys are such that they include boride pinning phases. In what is termed a Class 1 Steel the alloys indicate tensile strengths of 630 MPa to 1100 MPa and elongations of 10-40%. Class 2 Steel indicates tensile strengths of 875 MPa to 1590 MPa and elongations of 5-30%. Class 3 Steel indicates tensile strengths of 1000 MPa to 1750 MPa and elongations of 0.5-15%.
    Type: Application
    Filed: April 16, 2013
    Publication date: September 12, 2013
    Applicant: The NanoSteel Company, Inc.
    Inventors: Daniel James BRANAGAN, Brian E. MEACHAM, Jason K. WALLESER, Andrew T. BALL, Grant G. JUSTICE, Brendan L. NATION, Sheng CHENG, Alla V. SERGUEEVA
  • Publication number: 20130193648
    Abstract: A piston ring exhibiting particles capable of wear resistance on its shoulder is produced by producing a melt of the base materials of a metal material, adding ceramic particles to the melt, pouring the melt into a prefabricated mould and cooling the melt. During cooling, the mould is aligned such that the ceramic particles gather on at least one of the piston ring shoulders.
    Type: Application
    Filed: July 19, 2011
    Publication date: August 1, 2013
    Inventors: Richard Mittler, Laszlo Pelsoeczy
  • Publication number: 20130126054
    Abstract: The invention relates to an amorphous metal alloy which may be used in the field of mechanical applications, in particular as a spring. This amorphous metal alloy corresponds to the formula FeaCObNicNbdVeBfTag in which: 0?a?70; 0?b?70; 8<c?60; 1?d?19; 1?e<?10; 12?f?25; 0?g?5; with 20?a+b?70; 50?a+b+c?90; 5?d+e?20; and a+b+c+d+e+f+g=100.
    Type: Application
    Filed: January 22, 2013
    Publication date: May 23, 2013
    Applicant: ROLEX S.A.
    Inventor: ROLEX S.A.
  • Patent number: 8435363
    Abstract: A multi-phase steel sheet having microstructure having in combination ferrite, martensite of between 3% and 65% by volume, and at least one microstructure selected from the group consisting of, bainite and retained austenite, and having fine complex precipitates selected from the group of TiC, NbC, TiN, NbN, (Ti.Nb)C, (Ti.Nb)N, and (Ti.Nb)(C.N) particles having at least 50% smaller than 20 nm in size, and physical properties having tensile strength greater than about 780 megapascals and at least one of the properties of elongation greater than about 10%, yield ratio greater than about 70%, and hole expansion ratio greater than about 50%.
    Type: Grant
    Filed: October 6, 2008
    Date of Patent: May 7, 2013
    Assignee: Nucor Corporation
    Inventor: Weiping Sun
  • Patent number: 8419870
    Abstract: A method for making a strain aging resistant steel comprises adding boron to the steel, wherein substantially all of the boron in the steel forms boron nitride. A method for making steel comprises adding a nitride-forming element to the steel to lower the free nitrogen content of the steel to a free nitrogen content specification. A high-carbon steel contains boron nitride, wherein the free nitrogen content of the steel is less than 80 ppm. A strain aging resistant steel wherein the carbon content of the steel is between about 0.54 percent and about 0.75 percent.
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: April 16, 2013
    Assignee: L&P Property Management Company
    Inventors: C. Larry Coe, Alan T. Gorton
  • Patent number: 8371362
    Abstract: A method and apparatus for the production of a casting that includes pouring molten material into a mold for forming the casting, allowing the molten material to solidify, removing the mold at least in part from the resulting solidified casting, and locating the solidified casting in a chamber that completely surrounds and facilitates a controlled rate of cooling of the casting.
    Type: Grant
    Filed: September 9, 2008
    Date of Patent: February 12, 2013
    Assignee: Weir Minerals Australia, Ltd.
    Inventors: James Vernon Pezzutti, Ewan O'Leary
  • Patent number: 8317949
    Abstract: This application deals with glass forming iron based alloys which when produced as a metallic glass or mixed structure comprising metallic glass and nanocrystalline phases, results in extraordinary combinations of strength and ductility. Specifically, high strain up to 97% and high strength up to 5.9 GPa has been measured. Additionally, consistent with the amorphous structure high elasticity up to 2.6% has been observed. Thus, the new alloys developed result in structures and properties which yield high elasticity corresponding to a metallic glass, high plasticity corresponding to a ductile crystalline metal, and high strength as may be observed in nanoscale materials.
    Type: Grant
    Filed: June 16, 2009
    Date of Patent: November 27, 2012
    Assignee: The NanoSteel Company, Inc.
    Inventors: Daniel James Branagan, Brian E. Meacham, Alla V. Sergueeva
  • Patent number: 8313553
    Abstract: A method of making a steel with low carbon less than 0.035% by weight including steps of preparing a heat of molten steel composition in a steelmaking furnace to a tapping temperature as desired for desulfurization at a VTD, tapping open into a ladle the molten steel composition with an oxygen level between about 600 and 1120 ppm, providing slag forming compound to the ladle to form a slag cover over the molten steel composition in the ladle, transporting the molten steel composition in the ladle to a VTD, decarburizing the molten steel composition at the VTD by drawing a vacuum of less than 650 millibars, after decarburizing, adding one or more deoxidizers to the molten steel composition and deoxidizing the molten steel composition, after deoxidizing, adding one or more flux compounds to desulfurize the molten steel composition, and casting the molten steel composition to form a steel with low carbon less than 0.035% by weight.
    Type: Grant
    Filed: March 30, 2009
    Date of Patent: November 20, 2012
    Assignee: Nucor Corporation
    Inventors: Jacobus Marthinus Andreas Geldenhuis, David John Sosinsky, Daniel Gene Murray, David Wayne McGaughey, Eugene B. Pretorius
  • Publication number: 20120285583
    Abstract: Useful permanent magnet materials are formed by processing molten alloys of cerium, iron, and boron to form permanent magnet compositions with appreciable coercivity and remanence. For example, Ce16.7Fe77.8B5.6 has been produced with coercivity, Hci of 6.18 kOe and remanence, Br of 4.92 kG. In one practice, streams of the molten alloy are rapidly quenched (e.g., by melt spinning) to form magnetically-soft melt-spun material which is suitably annealed to obtain permanent magnet properties. In another practice, the streams of molten alloy are quenched at a predetermined quench rate to directly obtain permanent magnet properties in the cerium-iron-boron material.
    Type: Application
    Filed: February 7, 2012
    Publication date: November 15, 2012
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Martin S. Meyer, Jan F. Herbst, Frederick E. Pinkerton
  • Publication number: 20120199252
    Abstract: A method fabricating a stainless martensitic steel, including electroslag remelting then cooling an ingot of the steel, then at least one austenitic thermal cycle heating the ingot above its austenitic temperature followed by a cooling. During each cooling: if the cooling is not followed by an austenitic thermal cycle, holding the ingot at a holding temperature included in the ferritic-pearlitic transformation nose for a hold time longer than sufficient for transforming the austenite into a ferritic-pearlitic structure in the ingot as completely as possible at the holding temperature; if the cooling is followed by an austenitic thermal cycle, before its minimum temperature falls below the martensitic transformation start temperature, the ingot is either held throughout the period between the two austenitic thermal cycles at a temperature above the austenitic transformation completion temperature on heating, or held at the holding temperature included in the ferritic-pearlitic transformation nose.
    Type: Application
    Filed: October 11, 2010
    Publication date: August 9, 2012
    Applicant: SNECMA
    Inventors: Laurent Ferrer, Patrick Philipson
  • Patent number: 8221562
    Abstract: A method for casting medium carbon, B/Ti steel product using compact strip processing or thin slab casting. The method can include providing a steel composition including boron and titanium and casting the steel composition into a slab having a thickness between about 25 and 150 mm. The slab can have a cast composition including about 0.23 to 0.30 wt. % carbon, about 0.0010 to 0.0050 wt. % boron, about 0.010 to 0.050 wt. % titanium, about 1.15 to 1.50 wt. % manganese, less than 0.35 wt. % silicon and a Ti/N ratio greater than 2.9. The amount of each element is provided based upon the total weight of the steel composition. The steel slab can be free from cracks and significant defects. Furthermore, the steel slab can be used for electric resistance welded (ERW) products.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: July 17, 2012
    Assignees: Maverick Tube, LLC, Ternium Mexico, S.A. de C.V.
    Inventors: Martín Emiliano Valdez, Fernando Augusto Actis, Gerardo Puente Sireno, Marco Antonio Herrera García
  • Publication number: 20120145286
    Abstract: Hadfield steel and a method for obtaining the same, which steel has better mechanical properties than basic Hadfield steel, without detriment to any of them, which has a homogenous grain size distribution, thus allowing new applications, having the following chemical composition: 0.90 to 1.35% by weight of C, 11.00 to 14.00% by weight of Mn, 0.80% maximum by weight of Si, 0.07% maximum by weight of P, 0.05% maximum by weight of S and an amount of hafnium greater than or equal to 0.01% and less than 0.1% by weight, the rest being iron and impurities associated with iron, and where the percentages are expressed by weight with respect to the total weight of the steel.
    Type: Application
    Filed: December 14, 2011
    Publication date: June 14, 2012
    Applicant: FUNDACION TECNALIA RESEARCH & INNOVATION
    Inventor: Patricia CABALLERO OGUIZA
  • Publication number: 20120103477
    Abstract: The present invention is directed at metal alloys that are capable of forming spinodal glass matrix microconstituent structure. The alloys are iron based and include nickel, boron, silicon and optionally chromium. The alloys exhibit ductility and relatively high tensile strengths and may be in the form of sheet, ribbon, wire, and/or fiber. Applications for such alloys are described.
    Type: Application
    Filed: November 2, 2011
    Publication date: May 3, 2012
    Applicant: THE NANOSTEEL COMPANY, INC.
    Inventors: Daniel James BRANAGAN, Brian E. MEACHAM, Jason K. WALLESER, Alla V. SERGUEEVA, Andrew T. BALL, Grant G. JUSTICE
  • Patent number: 8143985
    Abstract: Disclosed is a power distribution transformer having a body of the transformer, the body consisting of a coil and an iron core; a tank containing the body of the transformer and an insulation substance which fills an inner space of the tank; and an upper lid of the tank. The tank and/or the upper lid is made of a ferritic stainless steel.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: March 27, 2012
    Assignees: Hitachi Industrial Equipment Systems Co., Ltd., Nippon Steel & Sumikin Stainless Steel Corp.
    Inventors: Masao Hosokawa, Mitsuaki Kawashima, Kazuyuki Fukui, Kouji Yamashita, Izumi Muto, Eiichiro Ishimaru, Hiroshige Inoue
  • Publication number: 20120032764
    Abstract: In order to make a sintered R-T-B-M magnet so that R2T14B phases that include a lot of Dy in the surface region of the main phase are distributed over the entire magnet, a region including a heavy rare-earth element RH at a high concentration is formed continuously beforehand at an interface between the crystals of an R2T14B compound that is the main phase of the sintered R-T-B-M magnet and the other phases.
    Type: Application
    Filed: March 29, 2010
    Publication date: February 9, 2012
    Applicant: HITACHI METALS, LTD.
    Inventor: Futoshi Kuniyoshi
  • Publication number: 20120006522
    Abstract: Disclosed are amorphous, ductile brazing foils with a composition consisting essentially of FeRestNiaCrbSicBdPe, wherein 0 atomic %?a<25 atomic %; 0 atomic %?b?15 atomic %; 1 atomic %?c?10 atomic %; 4 atomic %?d?15 atomic %; 1 atomic %?e?9 atomic %; any impurities?0.5 atomic %; rest Fe, wherein 2 atomic %?c+e?10 atomic % and 15 atomic %?c+d+e?22 atomic %, or consisting essentially of FeRestNiaCrbMofCugSicBdPe, wherein 0 atomic %?a<25 atomic %; 0 atomic %?b?15 atomic %; 1 atomic %<c?10 atomic %; 4 atomic %?d?15 atomic %; 1 atomic %?e?9 atomic %; 0 atomic %<f?3 atomic %; 0 atomic %?g?3 atomic %; any impurities?0.5 atomic %; rest Fe, wherein 2 atomic %?c+e?10 atomic % and 15 atomic %?c+d+e?22 atomic %. Also disclosed are brazed objects formed using these foils, particularly exhaust gas recirculation coolers and oil coolers, and methods for making the brazing foils and for making the brazed parts.
    Type: Application
    Filed: September 21, 2011
    Publication date: January 12, 2012
    Applicant: Vacuumschmelze GmbH & Co. KG
    Inventors: Thomas HARTMANN, Dieter Nuetzel
  • Publication number: 20110272065
    Abstract: A method for producing a soft magnetic alloy ribbon having a composition represented by Fe100?x?y?zAxByXz, wherein A is Cu and/or Au, X is at least one element selected from the group consisting of Si, S, C, P, Al, Ge, Ga and Be, and x, y and z are numbers (by atomic %) meeting the conditions of 0<x?5, 10?y?22, 1?z?10, and x+y+z?25, and comprising a matrix phase in which fine crystal grains having an average diameter of 60 nm or less are dispersed at a volume fraction of 50% or more, part of an oxide film formed on the surface being a layer having a lower B concentration than the average B concentration of the matrix phase; comprising the steps of (1) ejecting an alloy melt having the above composition onto a rotating cooling roll for quenching, to form a primary fine-crystalline alloy ribbon having a matrix phase, in which fine crystal nuclei having an average diameter of 30 nm or less are dispersed at a volume fraction of more than 0% and less than 30% in an amorphous phase; and then (2) annealing the pr
    Type: Application
    Filed: January 20, 2010
    Publication date: November 10, 2011
    Applicant: HITACHI METALS, LTD.
    Inventors: Motoki Ohta, Yoshihito Yoshizawa
  • Patent number: 8048197
    Abstract: The present invention provides a low carbon steel sheet and a low carbon steel slab on which formation of surface defects can be surely prevented by preventing aggregation of inclusions in the molten steel and finely dispersing inclusions in the steel sheet or slab, and a process for producing the steel sheet and slab. The present invention provides a process comprising the steps of decarburizing a molten steel so as to produce a carbon concentration of up to 0.01% by mass, pre-deoxidizing the molten steel by adding Al thereto so as to produce a dissolved oxygen concentration from 0.01 to 0.04% by mass, adding thereto Ti and at least La and/or Ce, and casting the molten steel, and a steel sheet and a steel slab obtained by the process.
    Type: Grant
    Filed: February 15, 2008
    Date of Patent: November 1, 2011
    Assignee: Nippon Steel Corporation
    Inventors: Katsuhiro Sasai, Wataru Ohashi, Tooru Matsumiya, Yoshiaki Kimura, Junji Nakashima
  • Publication number: 20110088818
    Abstract: A resettable torque limiter in which major components are cast from stainless steel in order to minimize material requirements and which are thereafter annealed to provide corrosion resistance in service.
    Type: Application
    Filed: October 15, 2010
    Publication date: April 21, 2011
    Inventor: Thomas F. Long, JR.
  • Publication number: 20110061772
    Abstract: The present invention discloses a low-density high-toughness alloy and the fabrication method thereof. The alloy of the present invention consists essentially of: by weight percent, equal to or greater than 23% but lower than or equal to 33% manganese, equal to or greater than 8.1% but lower than or equal to 9.8% aluminum, equal to or greater than 3% but lower than or equal to 5.0% chromium, equal to or greater than 0.6% but lower than or equal to 1.2% carbon, equal to or greater than 0.1% but lower than or equal to 0.24% silicon and the balance of iron. The golf-club head made from the abovementioned alloy can obtain superior elongation, strength, damping capacity, and corrosion resistance even without any heat treatment, or any hot/cold working, such as forging and rolling; therefore, the fabrication cost thereof can be obviously reduced.
    Type: Application
    Filed: November 18, 2010
    Publication date: March 17, 2011
    Applicant: NATIONAL CHIAO TUNG UNIVERSITY
    Inventors: TZENG-FENG LIU, JIAN-WEI LEE
  • Patent number: 7905966
    Abstract: The invention relates to a method of producing a strip of nanocrystalline material which is obtained from a wound ribbon that is cast in an amorphous state, having atomic composition [Fe1?a?bCoaNib]100?x?y?z??????CuxSiyBzNb?M??M??, M? being at least one of elements V, Cr, Al and Zn, and M? being at least one of elements C, Ge, P, Ga, Sb, In and Be, with: a ?0.07 and b ?0.1, 0.5 ?x ?1.5 and 2 ???5, 10?y?16.9 and 5?z?8, ??2 and ??2. According to the invention, the amorphous ribbon is subjected to crystallization annealing, in which the ribbon undergoes annealing in the unwound state, passing through at least two S-shaped blocks under voltage along an essentially longitudinal axial direction of the ribbon, such that the ribbon is maintained at an annealing temperature of between 530° C. and 700° C. for between 5 and 120 seconds and under axial tensile stress of between 2 and 1000 MPa.
    Type: Grant
    Filed: May 19, 2006
    Date of Patent: March 15, 2011
    Assignee: Imphy Alloys
    Inventors: Thierry Waeckerle, Thierry Save, Alain Demier
  • Publication number: 20100300876
    Abstract: A cobalt-iron alloy sputtering target is made by melting and casting process and consists of cobalt, iron and additive metal, wherein the cobalt has an increased pass through flux content in the cobalt-iron alloy sputtering target and the additive metal has a content from 8 at % 20 at % and is at least one metal selected from the group consisting of tantalum, zirconium, niobium, hafnium, aluminum and chromium. The cobalt-iron alloy sputtering target has increased pass through flux.
    Type: Application
    Filed: May 26, 2009
    Publication date: December 2, 2010
    Inventors: Shang-Chieh Hou, Hui-Wen Cheng
  • Publication number: 20100265028
    Abstract: The invention discloses a soft magnetic amorphous alloy and a soft magnetic nanocomposite alloy formed from the amorphous alloy. Both alloys comprise a composition expressed by the following formula: (Fe1-x-yCoxMy)100-a-b-cTaBbNc where, M is at least one element selected from the group consisting of Ni and Mn; T is at least one element selected from the group consisting of Nb, W, Ta, Zr, Hf, Ti, Cr, Cu, Mo, V and combinations thereof, and the content of Cu when present is less than or equal to 2 atomic %; N is at least one element selected from the group consisting of Si, Ge, C, P and Al; and 0.01?x+y<0.5; Q?y?0.4; 1<a<5 atomic %; 10<b<30 atomic %; and 0<c<10 atomic %. A core, which may be used in transformers and wire coils, is made by charging a furnace with elements necessary to form the amorphous alloy, rapidly quenching the alloy, forming a core from the alloy; and heating the core in the presence of a magnetic field to form the nanocomposite alloy.
    Type: Application
    Filed: February 21, 2007
    Publication date: October 21, 2010
    Applicant: CARNEGIE MELLON UNIVESITY
    Inventors: Michael E. McHenry, Jianguo Long, Vladimir Keylin, David Laughlin, Joseph Huth, Edward Conley
  • Publication number: 20100212785
    Abstract: An object of the present invention is to provide at a low cost a low-alloy steel having a high strength and excellent high-pressure hydrogen environment embrittlement resistance characteristics under a high-pressure hydrogen environment. The invention is a high-strength low-alloy steel excellent in high-pressure hydrogen environment embrittlement resistance characteristics, which is characterized in that the steel has a composition comprising C: 0.10 to 0.20%, Si: 0.10 to 0.40%, Mn: 0.50 to 1.20%, Cr: 0.20 to 0.80%, Cu: 0.10 to 0.50%, Mo: 0.10 to 1.00%, V: 0.01 to 0.10%, B: 0.0005 to 0.005% and N: 0.01% or less, by mass, with the balance consisting of Fe and unavoidable impurities.
    Type: Application
    Filed: August 21, 2008
    Publication date: August 26, 2010
    Applicant: The Japan Steel Works, Ltd.
    Inventors: Koichi Takasawa, Yoru Wada, Ryoji Ishigaki, Yasuhiko Tanaka
  • Publication number: 20100192895
    Abstract: The invention relates to a steel material having a high silicon content, and to a method for the production thereof, the steel material being particularly suitable for piston rings and cylinder sleeves. In addition to iron and production-related impurities, the steel material contains 0.5 to 1.2 wt. % carbon, 3.0 to 15.0 wt. % silicon and 0.5 to 4.5 wt. % nickel. Also, the steel material can contain small amounts of the following elements Mo, Mn, Al, Co Nb, Ti, V, Sn, Mg, B, Te Ta La, Bi, Zr, Sb, Ca, Sr, Cer, rare earth metals and nucleating agents such as NiMg, MiSiMg, FeMg and FeSIMg. due to the high Si content, a degree of saturation higher than 1.0 is attained, with the melting temperature of the steel material corresponding to normal cast iron. The steel material can be produced according to a conventional cast-iron technique and has a high resistance to wear and tear and a high structural strength (minimal distortion).
    Type: Application
    Filed: May 7, 2007
    Publication date: August 5, 2010
    Applicant: FEDERAL-MOGUL BURSCHEID GMBHBURGERMEISTER-SCHMIDT- STRASSE 17
    Inventor: Laszlo Pelsoeczy
  • Patent number: 7754027
    Abstract: A method for manufacturing a sputtering target includes the steps of: providing a highly pure matrix material containing a magnetic metal, and a highly pure precious metal ingot material; cleaning the surfaces of the matrix material and the precious metal ingot; vacuum melting the matrix material and the precious metal ingot to obtain a molten alloy; pouring the molten alloy in a mold having a cooling system while maintaining a surface of the molten alloy at a molten state by arc heating until the pouring is finished, thereby forming the molten alloy into a cast blank; hot working the cast blank; and annealing the cast blank after the hot working.
    Type: Grant
    Filed: August 27, 2007
    Date of Patent: July 13, 2010
    Assignee: China Steel Corporation
    Inventors: Rong-Zhi Chen, Jye-Long Lee, In-Ting Hong, Jui-Tung Chang, Pa-Tsui Sze