Abstract: The present invention relates to an Sm—Fe—N magnet material including: 7.0-12 at % of Sm; 0.1-1.5 at % of at least one element selected from the group consisting of Hf, Zr, and Sc; 0.1-0.5 at % of Mn; 10-20 at % of N; and 0-35 at % of Co, with the remainder being Fe and unavoidable impurities. The present invention also relates to an Sm—Fe—N bonded magnet including a powder of the Sm—Fe—N magnet material and a binder.

Abstract: The present invention relates to an electromagnetic wave absorbing body which is a sheet-like electromagnetic wave absorbing body in which particles including a soft magnetic material are dispersed in a matrix including a non-metal material, in which the electromagnetic wave absorbing body satisfies a relationship: ???, in which ? is a parameter given by Equation (1): ?=Ad(??)0.5/(??+???/?), in which d is a thickness of the electromagnetic wave absorbing body, ?, ??, ?, and ?? are a permittivity of the electromagnetic wave absorbing body, a loss term of ?, a permeability of the electromagnetic wave absorbing body, and a loss term of ?, respectively, and A is equal to 8×104/?(?/m).

Abstract: The present invention relates to a method for manufacturing a round-rod shaped alloy ingot by hot forging, containing suspending a primary alloy ingot having a round-rod shape in a columnar mold while one end of the primary alloy ingot is held, pouring a molten metal formed of a heat-retaining metal into the columnar mold so as to apply a coating of the heat-retaining metal to the entire circumference of the primary alloy ingot, to obtain a forging alloy ingot, taking the forging alloy ingot out from the columnar mold, then subjecting the forging alloy ingot to a hot forging while an end portion of the forging alloy ingot is gripped as a gripping portion, and removing the coating of the heat-retaining metal.

Abstract: A component for a hot-dip metal plating bath includes a base material and a thermal spray coating disposed to cover a surface of the base material. The base material includes ferritic stainless steel that contains: C: 0.10% to 0.50% by mass; Si: 0.01% to 4.00% by mass; Mn: 0.10% by mass to 3.00% by mass; Cr: 15.0% to 30.0% by mass; a total of Nb, V, Ti, and Ta: 0.9% by mass to 5.0% by mass; and a balance of Fe and unavoidable impurities. The ferritic stainless steel includes a microstructure that includes a ferrite phase as a main phase and a crystallized carbide, an area fraction of a Nb carbide, a Ti carbide, a V carbide, a Ta carbide, and a composite carbide thereof to the crystallized carbide of 30% or more. The component contains 50% by mass or more of Al.

Abstract: A rolling-sliding member that is high in hardness and continues to have a passivation film reliably even after being subjected to a process that does not require any processing for removal of scale, etc., as well as a rolling bearing using the same and a method for manufacturing the rolling-sliding member.

Abstract: The present invention provides a holding mechanism capable of well preventing misalignment of a workpiece even if the outer diameter of the workpiece is changed when the workpiece is supported at three points by a flat face and a V-shaped groove. Additionally, the present invention provides a holding mechanism of a transfer device capable of stably detecting a chucking error of holding claws for a workpiece.

Abstract: The present invention relates to an exhaust valve of a diesel engine for a large ship, containing a shall part and an umbrella part that are integrated with each other and made of an Ni—Cr—Al system Ni-base age-precipitated alloy, in which the exhaust valve has a layered structure and hardness of 600 HV or less as a whole, and the layered structure contains a layer formed of an ?-Cr phase having a thickness of 150 nm or more that is aged beyond peak mechanical strength.

Abstract: The present invention relates to a heat-resistant Ti alloy having excellent high-temperature strength and a process for producing the same. More particularly, the present invention relates to a heat-resistant Ti alloy having a composite structure having an equiaxed ? phase and ? grains containing an acicular ? phase inside thereof, and a process for producing the same.

Abstract: The present invention relates to a mold steel having a composition including, in terms of mass %: 0.220%?C?0.360%; 0.65%?Si<1.05%; 0.43%?Mn?0.92%; 0.43%?Ni?0.92%; 0.67%?0.5Mn+Ni?1.30%; 10.50%?Cr<12.50%; 0.05%?Mo<0.50%; 0.002%?V<0.50%; 0.001%?N?0.160%; and 0.300%?C+N?0.420%, with the remainder being Fe and unavoidable impurities.

Abstract: The present invention relates to a preform and a method for producing a TiAl-based turbine wheel, and particularly relates to a preform for use in producing a TiAl-based turbine wheel having a relatively thin tip thickness of a turbine blade and having excellent mechanical properties and a method for producing a TiAl-based turbine wheel using such a preform.

Abstract: The present invention relates to an Ni-based superalloy for hot forging, containing, in terms of % by mass, C: more than 0.001% and less than 0.100%, Cr: 11% or more and less than 19%, Co: more than 5% and less than 25%, Fe: 0.1% or more and less than 4.0%, Mo: more than 2.0% and less than 5.0%, W: more than 1.0% and less than 5.0%, Nb: 0.3% or more and less than 4.0%, Al: more than 3.0% and less than 5.0%, Ti: more than 1.0% and less than 3.0%, and Ta: 0.01% or more and less than 2.0%, with the balance being unavoidable impurities and Ni, in which the component composition satisfies the following two relationships: 3.5?([Ti]+[Nb]+[Ta])/[Al]×10<6.5 and 9.5?[Al]+[Ti]+[Nb]+[Ta]<13.0.

Abstract: A method for producing an RFeB system magnet with high coercivity by preventing a coating material from peeling off the surface of a base material during a grain boundary diffusion treatment is provided. A method for producing an RL2Fe14B system magnet which is a sintered magnet or a hot-deformed magnet containing, as the main rare-earth element, a light rare-earth element RL which is at least one of the two elements of Nd and Pr, the method including: applying, to a surface of a base material M of the RL2Fe14B system magnet, a coating material prepared by mixing a silicone grease and an RH-containing powder containing a heavy rare-earth element RH composed of at least one element selected from the group of Dy, Tb and Ho; and heating the base material together with the coating material. Improved coating and base materials adhesion facilitates transfer of RH into base material grain boundaries.

Abstract: The present invention provides a carburized part having a total amount of TiC, AlN and ZrC, which are precipitate particles, of 4.5×10?10 mole or less per 1 mm2 of grain boundary area of prior austenite grains after carburization. According to the present invention, it is possible to provide a carburized part which allows effective inhibition of abnormal grain growth in spite of a carburizing treatment and makes it possible to solve the problem of reduction in properties caused by abnormal grain growth.

Abstract: The present invention provides a mold fixing structure capable of easily performing work in which a mold carried into a machine is fixed to a mold mounting surface of the machine, and work in which the mold fixed to the mold mounting surface is carried out to the outside of the machine.

Abstract: The present invention relates to an Ni-based superalloy having a composition containing, in terms of % by mass, C: from 0.1 to 0.3%, Cr: from 8.0 to 12.0%, Mo: from 1.0 to 5.0%, Co: from 10.0 to 20.0%, Ta: from 0.01 to 1.50%, Ti: from 2.0 to 4.2%, Al: from 5.0 to 8.0%, V: from 0 to 1.5%, B: from 0.005 to 0.030%, and Zr: from 0.05 to 0.15%, with the balance being Ni and unavoidable impurities, and satisfying, in terms of atom %, Ti+Al being from 16.0 to 20.3% and Ti/Al being 0.3 or less.

Abstract: A rolling-sliding member that is high in hardness and continues to have a passivation film reliably even after being subjected to a process that does not require any processing for removal of scale etc., as well as a rolling bearing using the same and a method for manufacturing the rolling-sliding member.

Abstract: The present invention relates to a maraging steel containing, in terms of mass %, 0.10?C?0.35, 9.0?Co?20.0, 1.0?(Mo+W/2)?2.0, 1.0?Cr?4.0, a certain amount of Ni, a certain amount of Al, and V+Nb?0.60, with the balance being Fe and inevitable impurities, in which in a case of V+Nb?0.020, the amount of Ni is 6.0?Ni?9.4 and the amount of Al is 1.4?Al?2.0, and in a case of 0.020<V+Nb?0.60, the amount of Ni is 6.0?Ni?20.0 and the amount of Al is 0.50?Al?2.0.

Abstract: The present invention relates to a part obtained from an age hardening type bainitic microalloyed steel, a process for producing the part, and the age hardening type bainitic microalloyed steel. In particular, the present invention relates to a part which has been controlled so as to have higher values of strength than conventional parts, a process for producing the part, and the age hardening type bainitic microalloyed steel.

Abstract: The present invention relates to a method for producing a precipitation strengthened Ni-based superalloy material having a predetermined composition, containing a blooming forging step of performing a forging at a temperature range of from Ts to Tm and performing an air cooling to form a billet having an average crystal grain size of #1 or more, an overaging thermal treatment step of heating and holding the billet at a temperature range of from Ts to Ts+50° C. and slowly cooling it to a temperature of Ts or lower, and a crystal grain fining forging step of performing another forging at a temperature range of from Ts?150° C. to Ts and performing another air cooling, in which Ts is from 1,030° C. to 1,100° C., and an overall average crystal grain size is #8 or more after the crystal grain fining forging step.

Abstract: The present invention relates to a maraging steel containing, in terms of mass %, 0.20?C?0.35, 9.0?Co?20.0, 1.0?(Mo+W/2)?2.0, 1.0?Cr?4.0, and a certain amount of Ni, with the balance being Fe and inevitable impurities, in which in a case where the contents of V and Nb satisfy V+Nb?0.020 mass %, the amount of Ni is 6.0?Ni?9.4, and in which in a case where the contents of V and Nb satisfy 0.020 mass %<V+Nb?0.60 mass %, the amount of Ni is 6.0?Ni?16.0.