The invention relates to an aluminum complex alloy cylinder liner preparation process. The raw materials can be vacuum dried and put into a high-speed rolling ball mill for 20-80 hours, before being ground and sieved at 200 mesh. The sieved material can then be mixed with purified water in a stirring mill and stir for 1-4 hours, while a 0.5-2 wt % dispersant and binder are added, to produce a solid content that is a stable slurry of 60-70 wt %. The stable slurry can be dried and granulated into an average particle size of 100-200 mesh. The granulated powder can then be cold isostatic pressed in a mold to form a tube-shaped alloy blank, wherein the molding pressure is 130-250 MPa, and the holding time is 1-10 minutes, high temperature vacuum sintering of the alloy blank, sintering temperature 1500-1600 degrees, heat preservation 3-6 hours, and vacuum degree controlled at 0.098 MPa.

A sputtering target material contains one kind or two or more kinds selected from the group consisting of Ag, As, Pb, Sb, Bi, Cd, Sn, Ni, and Fe in a range of 5 massppm or more and 50 massppm or less, in terms of a total content; and a balance consisting of Cu and an inevitable impurity. In the sputtering target material, in a case in which an average crystal grain size calculated as an area average without twins is denoted by X1 (m), and a maximum intensity of pole figure is denoted by X2, upon an observation with an electron backscatter diffraction method, Expression (1): 2500>19X1+290X2 is satisfied, a kernel average misorientation (KAM) of a crystal orientation measured by an electron backscatter diffraction method is 2.0 or less, and a relative density is 95% or more.

A sliding member includes an overlay formed with an alloy plated film of Bi and Sb, the Sb concentration increasing in the overlay with the depth from the surface of the overlay.

A sliding member includes an overlay formed with an alloy plated film of Bi and Sb, the Sb concentration increasing in the overlay with the depth from the surface of the overlay.

A method for producing rare-earth magnets is provided in which, when a slurry 2 having a rare-earth-compound powder dispersed therein is applied to sintered magnet bodies 1 and dried to apply the powder thereto, the magnet bodies 1 are accommodated and conveyed in holding pockets 42 of a conveyance drum 4 which rotates in a state of being partially immersed in the slurry 2, and, as a result, the magnet bodies 1 are immersed in the slurry 2, withdrawn from the slurry 2, and dried to apply the powder to the sintered magnet bodies 1. According to this production method, the powder can be uniformly and efficiently applied, wastage of the rare-earth compound can be effectively suppressed, and a reduction in the surface area of equipment for performing an application step can also be achieved.

The disclosure provides a method of making an iron matrix composite. A FeNiP composite powder having a particle size of one to two micrometers and a FeN powder having a particle size of 100 to 250 nanometers are used as the raw material. The size and axial displacement of pressing heads of a graphite mold are controlled to realize the control of the porosity of porous iron. The composite produced comprises two surface layers of a FeNiP alloy and an intermediate layer of porous iron having a porosity of 14 to 39%. The method enables a reduced weight of the FeNiP alloy and enables shock absorption and damping properties to be imparted to the composite. In addition, an optional subsequent deep cryogenic treatment allows the FeNiP alloy to be subjected to phase transition from a metastable gamma-phase to an alpha-phase, thereby substantially improving the hardness and strength thereof.

The disclosure provides a method of making an iron matrix composite. A FeNiP composite powder having a particle size of one to two micrometers and a FeN powder having a particle size of 100 to 250 nanometers are used as the raw material. The size and axial displacement of pressing heads of a graphite mold are controlled to realize the control of the porosity of porous iron. The composite produced comprises two surface layers of a FeNiP alloy and an intermediate layer of porous iron having a porosity of 14 to 39%. The method enables a reduced weight of the FeNiP alloy and enables shock absorption and damping properties to be imparted to the composite. In addition, an optional subsequent deep cryogenic treatment allows the FeNiP alloy to be subjected to phase transition from a metastable gamma-phase to an alpha-phase, thereby substantially improving the hardness and strength thereof.

A method for producing a thermoelectric object for a thermoelectric conversion device is provided. A starting material which has elements in the ratio of a half-Heusler alloy is melted and then cooled to form at least one ingot. The ingot is homogenized at a temperature of 1000 C. to 1400 C. for a period of time t, wherein 0.5 ht<12 h or 24 h<t<100 h. The homogenized ingot is crushed and ground into a powder. The powder is cold-pressed and sintered at a maximum pressure of 1 MPa for 0.5 to 24 h at a temperature of 1000 C. to 1500 C.

A method for producing a thermoelectric object for a thermoelectric conversion device is provided. A starting material which has elements in the ratio of a half-Heusler alloy is melted and then cooled to form at least one ingot. The ingot is homogenized at a temperature of 1000 C. to 1400 C. for a period of time t, wherein 0.5 ht<12 h or 24 h<t<100 h. The homogenized ingot is crushed and ground into a powder. The powder is cold-pressed and sintered at a maximum pressure of 1 MPa for 0.5 to 24 h at a temperature of 1000 C. to 1500 C.

Provided is a method for manufacturing a sintered component, which can suppress occurrence of edge chipping when a through-hole is formed in a powder-compact green body and also has a good productivity. The method for manufacturing a sintered component includes a molding step of press-molding a raw material powder containing a metal powder and thus fabricating a powder-compact green body; a drilling step of forming a hole in the powder-compact green body using a drill; a sintering step of sintering the powder-compact green body after drilling, wherein the drill used for drilling has a circular-arc shaped cutting edge on a point portion thereof.