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Himeji, Japan

Patent
Toho Titanium Co. and Sanyo Special Steel Co. | Date: 2012-04-27

A titanium alloy containing copper, which cannot be realized by a conventional method, is provided, having a composition in which copper is contained in titanium with no segregation, and having improved strength and hardness. In addition a method is also provided, in which the titanium alloy is produced at lower cost than in a conventional method. The + or titanium alloy contains copper at 1 to 10 mass %, has a crystal phase of and phase or of phase, is formed of crystal particles not more than 100 m, and has a copper concentration per an arbitrary specified 1 mm


Patent
Toyota Jidosha Kabushiki Kaisha, Sanyo Special Steel Co. and Fine Sinter Co. | Date: 2015-07-31

The object of the present invention is to provide a compact for producing a sintered alloy which allows a sintered alloy obtained by sintering the compact to have improved mechanical strength and wear resistance, a wear-resistant iron-based sintered alloy, and a method for producing the same. The wear-resistant iron-based sintered alloy is produced by: forming a compact for producing a sintered alloy from a powder mixture containing a hard powder, a graphite powder, and an iron-based powder by powder compacting; and sintering the compact for producing a sintered alloy while diffusing C in the graphite powder of the compact for producing a sintered alloy in hard particles that constitute the hard powder. The hard particles contain 10% to 50% by mass of Mo, 3% to 20% by mass of Cr, and 2% to 15% by mass of Mn, with the balance made up of incidental impurities and Fe, and the hard powder and the graphite powder contained in the powder mixture account for 5% to 60% by mass and 0.5% to 2.0% by mass of the total amount of the hard powder, the graphite powder, and the iron-based powder, respectively.


There is provided a steel material with superior surface pressure fatigue strength, comprising a machine structural steel used for power transmission components such as gears and shafts used in automobiles, industrial machines, and the like. The steel material comprises in mass %: C: 0.15 to 0.35%; Si: 0.30 to 0.95%; Mn: 0.10 to 1.00%; P: 0 to 0.030%; S: 0 to 0.030%; Cr: 0.80 to 2.30%; Cu: 0 to 0.30%; Al: 0.008 to 0.500%; O: 0 to 0.0030%; N: 0.0020 to 0.0300%; Ni: 0 to 3.00%; Mo: 0 to 0.29%; Ti: 0 to 0.200%; Nb: 0 to 0.20%; and B: 0 to 0.0050%; and the balance Fe and unavoidable impurities. The steel material has, in mass %, a parameter represented by Si+Cr-2Mn of 1.05 or more and a parameter represented by 0.7Si+2.5Mn+2.0Cr+2.5Ni+4.0Mo of 6.30 or less.


Patent
Sanyo Special Steel Co. | Date: 2014-04-28

A shot peening process involves the steps of providing a steel member having a surface with a Vickers hardness of 920 HV or more and projecting a shot against the steel member, the shot having a Vickers hardness of 1000 HV or more and a density of 5.5 Mg/m


There are provided a sputtering target material for a soft-magnetic film layer with a high saturation magnetic flux density and high amorphous properties and a method for producing the sputtering target material. The target material is made of an alloy comprising one or more of Zr, Hf, Nb, Ta and B in an amount satisfying 5 at %(Zr+Hf+Nb+Ta)+B/210 at % and having 7 at % or less of B; 0 to 5 at % in total of Al and Cr; and the balance being Co and Fe in an amount satisfying 0.20Fe/(Fe+Co)0.65 (at % ratio) with unavoidable impurities.

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