A method for producing a TiAl alloy member includes a molding step (S10) of laminating a solidified body obtained by melting and solidifying or sintering powder of a TiAl alloy by irradiation of the powder with a beam, to mold a laminated body; and a heat treatment step (S12) of heating the laminated body at a setting temperature that is equal to or higher than a temperature at which a phase transformation to an α phase is initiated, to produce a TiAl alloy member. By the method for producing a TiAl alloy member, the TiAl alloy member can be easily molded with a decrease in high temperature properties suppressed.

A Ti-6A1-4V titanium powder alloy composition having enhanced strength resulting from the addition of one or more of the following elements without requiring an increase in oxygen content: Aluminum Iron Nitrogen Carbon

The composition may also be used for Ti-6A1-4V titanium alloy starting bar stock.

A method of 3D printing a metal or alloy product includes providing a layer of a powder bed which comprises a compound of a first metal, and optionally also said first metal in elemental form and/or optionally other elemental metal(s) which are suitable for alloying with said first metal; jetting a functional binder onto selected parts of said layer, wherein said functional binder infiltrates into pores in the powder bed, reacts with said compound of a first metal to form said first metal in elemental form, and locally fuses elemental metal particles of the powder bed in situ, sequentially repeating said steps of applying a layer of powder on top and selectively jetting functional binder, multiple times, to provide a powder bed bonded at selected locations by printed functional binder and; taking the resultant bound 3D structure out of the powder bed.

Active metal particles in which the surface layer is hardly oxidized and a method for producing the active metal particles is provided. In the method for modifying the surface of active metal particles, heat is generated by moving active metal powder in a fluid, and the surface layer of the active metal particles is reacted with an arbitrary component in the fluid by the heat to modify the surface layer. Preferably, moving the active metal powder draws a substantially circular orbit while vibrating. A vibrating mill is preferably used when making such movement with respect to the active metal powder. Then, the powder obtained by the surface modification has a nitrogen-containing coating as a surface layer with a thickness more than 1 nm and less than or equal to 6 nm. The powder has a fluidity in the range of 25 seconds/50 g or more and 45 seconds/50 g or less.

Orthopedic implants produced by additive manufacture, followed by refinement of exterior and interior surfaces trough mechanical erosion, chemical erosion, or a combination of mechanical and chemical erosion. Surface refinement removes debris, and also produces bone-growth enhancing micro-scale and nano-scale structures.

This disclosure relates to a manufacture method of a bushing, a bushing and an excavator to alleviate the problems of insufficient lubricity and wear resistance of the bushing. The bushing includes an inner ring and an outer ring. The manufacture method of the bushing includes the following steps: grinding a first mixed powder containing Fe, Al, Ti, Cr and V, nitriding the ground first mixed powder to form a nitrogen-rich stable compound powder, and then carrying out molding by pressing and sintering the nitrogen-rich stable compound powder to form the outer ring; grinding a second mixed powder containing Fe and Mo, sulfurizing the ground second mixed powder to form a sulfurized powder containing FeS and MoS.sub.2, and carrying out molding by pressing the sulfurized powder to form the inner ring; and placing the inner ring in the outer ring and carrying out sintering to obtain the bushing.

The invention provides a method for the recovery of a metal-containing product (M.sub.Prod) comprising: providing a composite material comprising a matrix of oxidised reductant (R.sub.o), a product metal (M.sub.P) dispersed in the matrix of oxidised reductant (R.sub.o), and one or more metal compounds (M.sub.PC.sub.R) of the product metal (M.sub.P) in one or more oxidation states dispersed in the matrix of oxidised reductant (R.sub.o); and treating the composite material to at least partially remove the one or more metal compounds (M.sub.PC.sub.R) from the matrix of oxidised reductant (Ro) to form the metal-containing product (M.sub.Prod).

A sputtering target containing 20 at % to 40 at % of Te, 5 at % to 20 at % of Cu, 5 at % to 15 at % of Zr, and remainder being Al, wherein a structure of the sputtering target is comprise of an Al phase, a Cu phase, a CuTeZr phase, a CuTe phase and a Zr phase. The present invention aims to provide an Al—Te—Cu—Zr-based alloy sputtering target capable of effectively suppressing the degradation of properties caused by compositional deviation, as well as a method of manufacturing the same.

New beta-style (bcc) titanium alloys are disclosed. The new alloys generally include 4-8 wt. % Al, 4-8 wt. % Nb, 4-8 wt. % V, 1-5 wt. % Mo, optionally 2-6 wt. % Cr, the balance being titanium, optional incidental elements, and unavoidable impurities. The new alloys may realize an improved combination of properties as compared to conventional titanium alloys.

New beta-style (bcc) titanium alloys are disclosed. The new alloys generally include 2.0-6.0 wt. % Al, 4.0-12.0 wt. % V, and 1.0-5.0 wt. % Fe, the balance being titanium, any optional incidental elements, and unavoidable impurities. The new alloys may realize an improved combination of properties as compared to conventional titanium alloys.