Iron Containing Patents (Class 420/458)
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Patent number: 9371574Abstract: The present invention provides a structural material having enhanced ductility characteristics at high temperatures and enhanced strength characteristics. The present invention provides an Ni3(Si, Ti)-based intermetallic compound characterized by containing from 25 to 500 ppm by weight of B with respect to a weight of an intermetallic compound having a composition of 100% by atom in total consisting of Ni as a main component, from 7.5 to 12.5% by atom of Si, from 4.5 to 11.5% by atom of Ti and from 0.5 to 5.0% by atom of W.Type: GrantFiled: September 14, 2010Date of Patent: June 21, 2016Assignee: OSAKA PREFECTURE UNIVERSITY PUBLIC CORPORATIONInventors: Yasuyuki Kaneno, Takayuki Takasugi
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Patent number: 8858875Abstract: A Ni based alloy material consists of by mass percent, C?0.03%, Si: 0.01 to 0.5%, Mn: 0.01 to 1.0%, P?0.03%, S?0.01%, Cr: not less than 20% to less than 30%, Ni: more than 40% to not more than 50%, Cu: more than 2.0% to not more than 5.0%, Mo: 4.0 to 10%, Al: 0.005 to 0.5%, W: 0.1 to 10%, N: more than 0.10% to not more than 0.35%, optionally one or more elements selected from Ca?0.01% and Mg?0.01%, with the balance being Fe and impurities, and the formula of “0.5Cu+Mo?6.5” is satisfied. The material has a surface hardness of a Vickers hardness of not less than 350 at 500° C., a corrosion resistance equivalent to that of Ni based alloys having high Mo contents, and excellent erosion resistance in a severe environment.Type: GrantFiled: March 16, 2012Date of Patent: October 14, 2014Assignee: Nippon Steel & Sumitomo Metal CorporationInventors: Masaki Ueyama, Masaaki Terunuma
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Publication number: 20140125214Abstract: A spark plug electrode material containing nickel, silicon, and copper, the electrode material, in the case of proper use, forming a nickel oxide layer made of nickel oxide grains on at least a part of its surface, the grain boundary phase of the nickel oxide grains including silicon and/or silicon oxide.Type: ApplicationFiled: February 15, 2012Publication date: May 8, 2014Inventor: Simone Baus
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Publication number: 20140106063Abstract: A spark plug electrode material containing a) 0.7 to 1.3% silicon by weight, b) 0.5 to 1.0% copper by weight, and c) nickel as the balance.Type: ApplicationFiled: February 15, 2012Publication date: April 17, 2014Inventors: Lars Menken, Juergen Oberle, Simone Baus, Jochen Boehm
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Publication number: 20120114520Abstract: A nickel-molybdenum-iron alloy with high corrosion resistance with respect to reducing media at high temperatures, consisting of (in % by mass): 61 to 63% nickel, 24 to 26% molybdenum, 10 to 14% iron, 0.20 to 0.40% niobium, 0.1 to 0.3% aluminum, 0.01 to 1.0% chromium, 0.1 to 1.0% manganese, at most 0.5% copper, at most 0.01% carbon, at most 0.1% silicon, at most 0.02% phosphorus, at most 0.01% sulphur, at most 1.0% cobalt, and further smelting-related impurities.Type: ApplicationFiled: July 19, 2010Publication date: May 10, 2012Applicant: THYSSENKRUPP VDM GMBHInventors: Rainer Behrens, Helena Alves
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Patent number: 8157929Abstract: Disclosed are: a magnetic shielding material having excellent magnetic shielding property at a low magnetic field; and a magnetic shielding component and a magnetic shielding room each using the magnetic shielding material. Specifically disclosed is a magnetic shielding material comprising the following components (by mass): Ni: 70.0-85.0%, Cu: 0.6% or less, Mo: 10.0% or less and Mn: 2.0% or less, with the remainder being substantially Fe. The magnetic shielding material has a relative magnetic permeability of 40,000 or more under a magnetic field of 0.05 A/m and a squareness ratio (Br/B0.8) of 0.85 or less, wherein the squareness ratio (Br/B0.8) is a ratio of a remanent magnetic flux density (Br) to a maximum magnetic flux density (B0.8) in a DC hysteresis curve produced under the maximum magnetic field of 0.8 A/m.Type: GrantFiled: February 12, 2008Date of Patent: April 17, 2012Assignee: Hitachi Metals, Ltd.Inventors: Shin-ichiro Yokoyama, Yasuyuki Ilda, Hakaru Sasaki, Yoji Ishikura, Hiromitsu Itabashi, Masahiro Mita, Yoshiyuki Fujihara
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Publication number: 20110150695Abstract: Methods for producing electronic grade metal nanostructures having low levels of contaminants are provided. Monolayer arrays, populations, and devices including such electronic grade nanostructures are described. In addition, novel methods and compositions for production of Group 10 metal nanostructures and for production of ruthenium nanostructures are provided, along with methods for recovering nanostructures from suspension.Type: ApplicationFiled: August 18, 2006Publication date: June 23, 2011Applicant: NANOSYS, Inc.Inventors: Srikanth Ranganathan, Paul Bernatis, Joel Gamoras, Chao Liu, J. Wallace Parce
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Patent number: 7910512Abstract: To provide a production process of an electrode catalyst for fuel cell whose initial voltage is high and whose endurance characteristics, especially, whose voltage drop being caused by high-potential application is less. A production process according to the present invention of an electrode catalyst for fuel cell is characterized in that: it includes: a dispersing step of dispersing a conductive support in a solution; a loading step of dropping a platinum-salt solution, a base-metal-salt solution and an iridium-salt solution to the resulting dispersion liquid, thereby loading respective metallic salts on the conductive support as hydroxides under an alkaline condition; and an alloying step of heating the conductive support with metallic hydroxides loaded in a reducing atmosphere to reduce them, thereby alloying them.Type: GrantFiled: September 26, 2008Date of Patent: March 22, 2011Assignee: Cataler CorporationInventors: Hiroaki Takahashi, Sozaburo Ohashi, Tetsuo Kawamura, Yousuke Horiuchi, Toshiharu Tabata, Tomoaki Terada, Takahiro Nagata, Susumu Enomoto
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Publication number: 20100047111Abstract: Disclosed are: a magnetic shielding material having excellent magnetic shielding property at a low magnetic field; and a magnetic shielding component and a magnetic shielding room each using the magnetic shielding material. Specifically disclosed is a magnetic shielding material comprising the following components (by mass): Ni: 70.0-85.0%, Cu: 0.6% or less, Mo: 10.0% or less and Mn: 2.0% or less, with the remainder being substantially Fe. The magnetic shielding material has a relative magnetic permeability of 40,000 or more under a magnetic field of 0.05 A/m and a squareness ratio (Br/B0.8) of 0.85 or less, wherein the squareness ratio (Br/B0.8) is a ratio of a remanent magnetic flux density (Br) to a maximum magnetic flux density (B0.8) in a DC hysteresis curve produced under the maximum magnetic field of 0.8 A/m.Type: ApplicationFiled: February 12, 2008Publication date: February 25, 2010Applicant: Hitachi Metals LtdInventors: Shin-ichiro Yokoyama, Yasuyuki Iida, Hakaru Sasaki, Yoji Ishikura, Hiromitsu Itabashi, Masahiro Mita, Yoshiyuki Fujihara
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Patent number: 7662740Abstract: A fuel cell catalyst comprising platinum, chromium, and copper, nickel or a combination thereof. In one or more embodiments, the concentration of platinum is less than 50 atomic percent, and/or the concentration of chromium is less than 30 atomic percent, and/or the concentration of copper, nickel, or a combination thereof is at least 35 atomic percent.Type: GrantFiled: June 3, 2004Date of Patent: February 16, 2010Assignees: Symyx Technologies, Inc., Honda Giken Kogyo Kabushiki KaishaInventors: Konstantinos Chondroudis, Alexander Gorer, Martin Devenney, Ting He, Hiroyuki Oyanagi, Daniel M. Giaquinta, Kenta Urata, Hiroichi Fukuda, Qun Fan, Peter Strasser, Keith James Cendak, Jennifer N. Cendak, legal representative
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Patent number: 7431812Abstract: An anode for the electrowinning of aluminium by the electrolysis of alumina in a molten fluoride electrolyte has an electrochemically active integral outside oxide layer obtainable by surface oxidation of a metal alloy which consists of 20 to 60 weight % nickel; 5 to 15 weight % copper; 1.5 to 5 weight % aluminium; 0 to 2 weight % in total of one or more rare earth metals, in particular yttrium; 0 to 2 weight % of further elements, in particular manganese, silicon and carbon; and the balance being iron. The metal alloy of the anode has a copper/nickel weight ratio in the range of 0.1 to 0.5, preferably 0.2 to 0.3.Type: GrantFiled: March 12, 2003Date of Patent: October 7, 2008Assignee: Moitech Invent S.A.Inventors: Thinh T. Nguyen, Vittorio De Nora
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Publication number: 20080100410Abstract: A soft magnetic alloy powder containing Fe—Ni-based crystal particles is provided as one capable of adequately reducing core loss of a powder magnetic core and achieving satisfactory magnetic characteristics at an effective operating temperature of an element. The present invention provides a soft magnetic alloy powder containing Fe—Ni-based crystal particles containing 45 to 55 mass % Fe and 45 to 55 mass % Ni, relative to a total mass of Fe and Ni, and containing 1 to 12 mass % Co and 1.2 to 6.5 mass % Si, relative to a total mass of Fe, Ni, Co, and Si.Type: ApplicationFiled: October 19, 2007Publication date: May 1, 2008Applicant: TDK CORPORATIONInventors: Hiroshi Tomita, Hideharu Moro, Kesaharu Takatoh, Koyu Enda
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Patent number: 6764646Abstract: 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: GrantFiled: June 13, 2002Date of Patent: July 20, 2004Assignee: Haynes International, Inc.Inventors: Paul Crook, Martin L. Caruso
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Publication number: 20020146342Abstract: A dental casting alloy based on Ni and Ti and having addition of cast of Mo, Fe, Cu and Co has the following composition in weight %:Ti: 40-50 % Mo 0.2-20 % Fe 0.1-1.5% Cu. 0.1-1.0% Co 0.1-0.Type: ApplicationFiled: October 26, 2001Publication date: October 10, 2002Inventor: Victor Gjunter
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Patent number: 6207105Abstract: A wear-resistant Ni\Cu alloy and methods of preparing same are disclosed. The alloy comprises a ductile, continuous phase of Ni\Cu with a discontinuous phase of hardened Ti containing particles distributed throughout the continuous phase. The particles are Ti\Al intermetallic or complex TixAlyNiz complex or particle. The alloying components are poured and mixed in the melt under an inert atmosphere, then slowly cooled to provide the desired cast article. The alloy should be protected during melting and cooling in a protective atmosphere, such as a vacuum, or an inert atmosphere so as to inhibit oxide and nitride formation that would otherwise adversely affect desirable alloy properties.Type: GrantFiled: December 20, 1999Date of Patent: March 27, 2001Assignee: Global Manufacturing Solutions, Inc.Inventor: Charles M. Woods
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Patent number: 5725687Abstract: The present invention relates to a wear-resistant high permeability alloy nsisting of Ni, Nb, C and Fe, a wear-resistant high permeability alloy consisting of Ni, Nb, C and Fe as main components and at least one element selected from the group consisting of Cr, Mo, Ge, Au, Co, V, W, Cu, Ta, Mn, Al, Si, Ti, Zr, Hf, Sn, Sb, Ga, In, Tl, Zn, Cd, rare earth element, platinum element, Be, Ag, Sr, B, P, N, O, S as a secondary component and a method of manufacturing the same and a magnetic recording and reproducing head, and an object of the invention is to obtain an excellent wear-resistant magnetic alloy having easy forging processability, a large effective permeability, a saturated flux density of more than 4000G, and a recrystallization texture of {110}<112>+{311}<112>+{111}<112>, and a wear-resistant high permeability alloy consisting by weight of Ni 60-90%, Nb 0.5-14%, C 0.0003-0.Type: GrantFiled: October 30, 1995Date of Patent: March 10, 1998Assignee: The Foundation: The Research Institute of Electric and Magnetic AlloysInventors: Yuetsu Murakami, Katashi Masumoto
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Patent number: 5669989Abstract: A Ni--Fe magnetic alloy consists essentially of: 77 to 80 wt. % Ni, 3.5 to 5 wt. % Mo, 1.5 to 3 wt. % Cu, 0.1 to 1.1 wt. % Mn, 0.1 wt. % or less Cr, 0.003 wt. % or less S, 0.01 wt. % or less P, 0.005 wt. % or less 0, 0.003 wt. % or less N, 0.02 wt. % or less C, 0.001 to 0.05 wt. % Al, 1 wt. % or less Si, 2.6-6 of the weight ratio of Ca to S, (Ca/S), and the balance being Fe and inevitable impurities, satisfies an equation of 3.2.ltoreq.(2.02.times.?Ni!-11.13.times.?Mo!-1.25.times.?Cu!-5.03.times.?M n!)/(2.13.times.?Fe!).ltoreq.3.8; and has a Mo segregation ratio defined by a seregration equation satisfying 5% or less, the seregration equation being .vertline.(Mo content in a segregation region-Mo average content)/(Mo average content).vertline..times.100%. A method for producing a magnetic Ni--Fe alloy comprises the steps of: a first heating step of heating an alloy ingot to 1200.degree. to 1300.degree. C. for 10 to 30 hrs; slabbing the heated ingot at a finishing temperature of 950.degree. C.Type: GrantFiled: October 19, 1995Date of Patent: September 23, 1997Assignee: NKK CorporationInventors: Tadashi Inoue, Kiyoshi Tsuru, Shinichi Okimoto, Naokazu Yamamura, Tetsuo Yamamoto, Hirohisa Haiji
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Patent number: 5500057Abstract: A Ni-Fe magnetic alloy consists essentially of:77 to 80 wt. % Ni, 3.5 to 5 wt. % Mo, 1.5 to 3 wt. % Cu, 0.1 to 1.1 wt. % Mn, 0.1 wt. % or less Cr, 0.003 wt. % or less S, 0.01 wt. % or less P, 0.005 wt. % or less 0, 0.003 wt. % or less N, 0.02 wt. % or less C, 0.001 to 0.05 wt. % Al, 1 wt. % or less Si, 2.6-6 of the weight ratio of Ca to S, (Ca/S), and the balance being Fe and inevitable impurities, satisfies an equation of 3.2.ltoreq.(2.02.times.[Ni]-11.13.times.[Mo]-1.25.times.[Cu]-5.03.times.[M n])/ (2.13.times.[Fe]).ltoreq.3.8; and has a Mo segregation ratio defined by a seregration equation satisfying 5% or less, the seregration equation being .vertline.(Mo content in a segregation region-Mo average content)/ (Mo average content).vertline..times.100%.A method for producing a magnetic Ni-Fe alloy comprises the steps of: a first heating step of heating an alloy ingot to 1200.degree. to 1300.degree. C. for 10 to 30 hrs; slabbing the heated ingot at a finishing temperature of 950.degree. C.Type: GrantFiled: October 1, 1993Date of Patent: March 19, 1996Assignee: NKK CorporationInventors: Tadashi Inoue, Kiyoshi Tsuru, Shinichi Okimoto, Naokazu Yamamura, Tetsuo Yamamoto, Hirohisa Haiji
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Patent number: 5496391Abstract: A powdered metallic coating material is disclosed, having the following composition (in weight percent):______________________________________ Cu: 5-30 P: 0.1-4.0 B: 0.5-4.0 Si: 0.5-4.0 Cr: 0-5.0 Fe: 0-3.0 C: 0-0.3 Ni: balance ______________________________________This material is used for forming, by thermal spraying, plasma arc welding or brazing, a protective coating against high temperature corrosion and erosion, on a substrate made of a copper based alloy. A flux composition or a mixture of such a composition with an alloy containing phosphorus is applied first on the surface of the substrate, and said powdered metallic material is then applied thereupon.Improved adherence of the coating to the substrate, as well as better compactness and machinability properties of this coating are achieved.Type: GrantFiled: August 2, 1994Date of Patent: March 5, 1996Assignee: Castolin S.A.Inventor: Le/ on Noel
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Patent number: 5135586Abstract: A flat-shaped fine Fe-Ni alloy powder suitable for use as a magnetic shield coating material for cards or the like. The power has a mean particle size of 0.1 to 30 .mu.m, a mean thickness not greater than 2 .mu.m and a coercive force not greater than 400 A/m. The flat-shaped fine powder is produced by preparing an Fe-Ni alloy powder of a composition which exhibits, in a bulk state, a saturated magnetostriction constant value falling within the range of .+-.15.times.10.sup.-6 and which contains, by weight, 70 to 83% Ni, 2 to 6% Mo, 3 to 6% Cu, 1 to 2% Mn, not more than 0.05% C and the balance Fe and incidental impurities, pulverizing the alloy powder by an attrition mill, and annealing the pulverized powder in a fluidized or moving state in a substantially non-oxidizing atmosphere.Type: GrantFiled: November 29, 1990Date of Patent: August 4, 1992Assignee: Hitachi Metals, Ltd.Inventors: Takashi Meguro, Hideki Nakamura, Yoichi Mochida, Tsutomu Inui
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Patent number: 5082625Abstract: Herein disclosed, as a Ni-based corrosion-resistant alloy to be used for build-up welding, is an alloy which contains 0.5 to 2.3 wt % of copper, 0.1 to 5.3 wt % of molybdenum, 1.0 to 29.0 wt % of at least one carbide forming element except molybdenum, 1.0 to 30.0 wt % of iron, 0.6 to 2.5 wt % of silicon, 0.008 up to 1.0 wt % of boron, and 0.04 to 1.6 wt % of carbon, the remainder being composed of nickel and incidental impurities.Type: GrantFiled: December 6, 1989Date of Patent: January 21, 1992Assignee: Toyota Jidosha Kabushiki KaishaInventors: Sinji Kato, Soya Takagi, Minoru Kawasaki, Kazuhiko Mori, Katsuhiko Ueda
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Patent number: 4983474Abstract: A hydrogen absorbing Ni-based alloy comprising 5 to 25% by weight of titanium (Ti), 10 to 37% by weight of zirconium (Zr), 4 to 20% by weight of manganese (Mn), 0.1 to 12% by weight of vanadium (V), 0.01 to 5% by weight of iron (Fe), 0.01 to 4.5% by weight of aluminum (Al), and balance nickel (Ni) and unavoidable impurities, and a sealed Ni-hydrogen rechargeable battery comprising a negative electrode provided with such a hydrogen absorbing alloy as an active material, an Ni positive electrode, a separator and an alkaline electrolyte solution.Type: GrantFiled: May 17, 1989Date of Patent: January 8, 1991Assignee: Mitsubishi Metal CorporationInventors: Hidekazu Doi, Ritsue Yabuki
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Patent number: 4935201Abstract: A ferromagnetic Ni-Fe alloy consisting essentially of:______________________________________ nickel from 75 to 82 wt. %, molybdenum from 2 to 6 wt. %, boron from 0.001 to 0.005 wt. %, calcium within the range satisfying any one of the following formulae in a weight ratio to sulfur as an incidental impurity, depending upon an oxygen content as an incidental impurity: 1.5 .ltoreq. Ca/S .ltoreq. 3.5, or 1.15 .ltoreq. Ca/S .ltoreq. 3.50, ______________________________________and the balance being iron and incidental impurities. Said alloy may further additionally contain from 1 to 5 wt. % copper and/or from 0.1 to 0.4 wt. % manganese. An alloy article such as a slab or a strip having an excellent surface quality of said alloy is manufactured by heating a material having the above-mentioned chemical composition to a temperature of from 1,100.degree. to 1,250.degree. C., and then hot-working the thus heated material at a finishing temperature of at least 800.degree. C.Type: GrantFiled: April 28, 1989Date of Patent: June 19, 1990Assignee: NKK CorporationInventors: Tadashi Inoue, Tomoyoshi Okita
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Patent number: 4898794Abstract: A hydrogen absorbing Ni,Zr-based alloy comprising 5 to 20% by weight of titanium (Ti), 10 to 37% by weight of zirconium (Zr), 5 to 30% by weight of manganese (Mn), 0.01 to 15% by weight of tungsten (W), 6 to 30% by weight of iron (Fe), and optionally at least one of 0.1 to 7% by weight of Cu, 0.05 to 6% by weight of Cr and 0.01 to 5% by weight of Al, and balance nickel (Ni) and unavoidable impurities; and a sealed Ni-hydrogen rechargeable battery comprising a negative electrode provided with a hydrogen absorbing alloy as an active material, an Ni positive electrode, a separator and an alkaline electrolytic solution, wherein the hydrogen absorbing alloy is composed of such hydrogen absorbing Ni,Zr-based alloy.Type: GrantFiled: July 17, 1989Date of Patent: February 6, 1990Assignee: Mitsubishi Metal CorporationInventors: Hidekazu Doi, Ritsue Yabuki
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Patent number: 4874577Abstract: Disclosed is a wear-resistant intermetallic compound alloy having superior machineability which consists essentially of: 45-60% of either Ni or Co or both with cobalt content of at least 5%, at least one of 0.1-2% of Hf and 0.05-2% of Re, 0-2% of at least one element selected from the group consisting of Si, P, Cu, Zn, Ga, Ge, Cd, In, Sn, Sb, Pb and Bi, 0-2% of C, and 0-5% of at least one element selected from the group consisting of Zr, Fe, V, Nb, Ta, Cr, Mo, W and Mn, the balance being Ti and incidental impurities, the percent being atomic percent.Type: GrantFiled: November 9, 1987Date of Patent: October 17, 1989Assignee: Mitsubishi Kinzoku Kabushiki KaishaInventors: Saburo Wakita, Junji Hoshi
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Patent number: 4822567Abstract: Antibiotic alloys adapted for making sanitary articles, such as orthodontic fittings and component parts of water purifying apparatus, the alloy containing cobalt to impart an antibiotic ability hereto, and iron and nickel to enhance the workability thereof so that the alloy can be easily worked into intricate shapes.Type: GrantFiled: October 29, 1987Date of Patent: April 18, 1989Assignee: Sankin Kogyo Kabushiki KaishaInventors: Isamu Kato, Sadayuki Yuhda, Naoki Oda, Masahiro Suganuma
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Patent number: 4822693Abstract: The present invention relates to copper-iron-nickel composite materials having utility in electronic applications because of their low coefficients of expansion and high thermal conductivities. Composite materials in accordance with the present invention consist essentially of about 10% to 80% copper and the balance iron plus nickel with the ratio of iron to nickel being in the range of from about 1.5:1 to about 2.0:1. Preferred composite materials have an iron to nickel ratio in the range of from about 1.6:1 to about 1.9:1.Type: GrantFiled: March 23, 1987Date of Patent: April 18, 1989Assignee: Olin CorporationInventors: Sankaranarayanan Ashok, Jacob Crane, Julius C. Fister
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Patent number: 4806305Abstract: Disclosed is a series of silicon rich nickel-base alloys that have a high degree of ductility and hot working properties. The alloys have the corrosion resistant characteristics comparable to cast HASTELLOY.RTM. alloy D (Ni - 9 Si - 3 Cu). The alloys have good tensile strength at temperatures up to 600.degree. C. comparing favorably with Alloy IN 718. In addition, the alloys may be produced by super plastic forming (isothermal forging). The nickel-base alloy typically contains 7 to 14% silicon, 0.5 to 6% vanadium, plus a number of optional modifying elements.Type: GrantFiled: May 1, 1987Date of Patent: February 21, 1989Assignee: Haynes International, Inc.Inventor: Warren C. Oliver
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Patent number: 4710243Abstract: A wear-resistant alloy of high permeability having an effective permeabil of at least about 3,000 at 1 KHz, a saturation magnetic flux density of at least about 4,000 G, and a recrystallization texture of {110}<112>+{311}<112> is provided. The alloy is produced by cold working a forged or hot worked ingot of an alloy of a desired composition at a cold working ratio of at least about 50%, heating the cold worked alloy at a temperature which is below the m.p. of the alloy and not less than about 900.degree. C., and cooling the heated alloy from a temperature which is not less than an order-disorder transformation point (about 600.degree. C.) of the alloy. Alternatively, the alloy is produced by reheating the cooled alloy to a temperature which is not over than the order-disorder transformation point, and cooling the reheated alloy.Type: GrantFiled: July 29, 1985Date of Patent: December 1, 1987Assignee: The Foundation: The Research Institute of Electric and Magnetic AlloysInventors: Hakaru Masumoto, Yuetsu Murakami
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Patent number: 4572750Abstract: The disclosed magnetic alloy essentially consists of 60-86% of nickel (Ni), .5-14% of niobium (Nb), 0.001-5% in sum of at least one element selected from the group consisting of gold, silver, platinum group elements, gallium, indium, thallium, strontium, and barium, and the balance of iron with a trace of impurities, which alloy renders magnetic properties suitable for recording-and-reproducing head upon specific heat treatment.Type: GrantFiled: June 25, 1984Date of Patent: February 25, 1986Assignee: The Foundation: The Research Institute of Electric and Magnetic AlloysInventors: Hakaru Masumoto, Yuetsu Murakami
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Patent number: 4404028Abstract: New nickel rich metal alloys containing copper along with specific amounts of boron are disclosed. The alloys are subjected to rapid solidification processing (RSP) techniques which produce cooling rates between .about.10.sup.5 .degree. to 10.sup.7 .degree. C./sec. The as-quenched ribbon, powder, etc. consists primarily of a metastable crystalline solid solution phase. The metastable crystalline phases are subjected to suitable heat treatments so as to produce a transformation to a stable multiphase microstructure which includes borides. This heat treated alloy exhibits superior mechanical properties with good corrosion and/or oxidation resistance for numerous engineering applications.Type: GrantFiled: April 27, 1981Date of Patent: September 13, 1983Assignee: Marko Materials, Inc.Inventors: Viswanathan Panchanathan, Ranjan Ray, Bill C. Giessen