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.

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.

A compressed powder body comprises metal particles and an interposed substance which is interposed between the metal particles. Each of the metal particles is made of FeSiAl-based soft magnetic alloy and has a flat shape when seen along a predetermined direction. The metal particles include one or more of the metal particles each of which is formed with one or more predetermined holes. Each of the predetermined holes passes through the metal particle in the predetermined direction. Each of the predetermined holes has a maximum width in a predetermined plane perpendicular to the predetermined direction the maximum width being equal to or larger than a thickness of the metal particle with the predetermined hole in the predetermined direction.

A method for manufacturing a high-strength aluminum includes: receiving atomized aluminum powder having one or more of an approximate desired powder size and an approximate morphology; and sintering the powder. A method for manufacturing a high-strength aluminum includes: receiving atomized aluminum powder having one or more of an approximate desired powder size and an approximate morphology; sintering the powder, producing additively manufactured aluminum; solution heat treating the additively manufactured aluminum; quenching the additively manufactured aluminum; and aging the additively manufactured aluminum. A method for manufacturing a high-strength aluminum includes: receiving atomized aluminum powder having one or more of an approximate desired powder size and an approximate morphology; sintering the powder, producing additively manufactured aluminum; placing the additively manufactured aluminum under one or more of heat treatment and pressure using a hot isostatic press (HIP); and aging the additively manufactured aluminum powder.

Methods of producing three-dimensional alloy workpieces are described herein, which can comprise: producing a precursor workpiece on a layer-by-layer basis by depositing a layer of a mixed powder, the mixed powder comprising an elemental powder and a second powder; melting at least a portion of the elemental powder by directing an energy field onto a portion of the layer; and repeating the deposing and melting steps to form the precursor workpiece from a plurality of layers. The precursor workpiece can comprise a dispersed phase and a continuous phase, the dispersed phase being dispersed within the continuous phase, the dispersed phase comprising a plurality of discrete regions comprising the second powder, and the continuous phase comprising the melted elemental powder. The methods can further comprise heating the precursor workpiece to homogenize the continuous phase and the dispersed phase, thereby forming the three-dimensional alloy workpiece comprising a continuous alloy phase.

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.

A method for producing a thermoelectric material, comprising: mixing an Sn powder and a powder containing a first dopant element to obtain a first mixed raw material, heating the first mixed raw material at a temperature allowing for mutual diffusion of Sn and the first dopant element to obtain a first aggregate, pulverizing the first aggregate to obtain a first powder, mixing an Mg powder, an Si powder, and the first powder to obtain a second mixed raw material, heating the second mixed raw material at a temperature allowing for mutual diffusion of Mg, Si, Sn and the first dopant element to obtain a second aggregate, pulverizing the second aggregate to obtain a second powder, and pressure-sintering the second powder, and wherein the first dopant element is one or more elements selected from Al, Ag, As, Bi, Cu, Sb, Zn, P, and B.

Components made of a metal matrix composite and methods for the manufacture thereof. The metal matrix composite contains TiB.sub.2 particles, Al.sub.3Ti particles, and particles of an intermetallic compound of aluminum and at least one rare earth element dispersed in an aluminum matrix. Methods include casting a first melt to produce an ingot, remelting the ingot to form a second melt, forming a powder from the second melt using an atomization process, and fabricating a component utilizing the powder in an additive manufacturing process. The ingot and the powder include an aluminum matrix that contains dispersions of TiB.sub.2 particles and Al.sub.3Ti particles.

New aluminum alloys having iron, vanadium, silicon, and copper, and with a high volume of ceramic phase therein are disclosed. The new products may include from 3 to 12 wt. % Fe, from 0.1 to 3 wt. % V, from 0.1 to 3 wt. % Si, from 1.0 to 6 wt. % Cu, from 1 to 30 vol. % ceramic phase, the balance being aluminum and impurities. The ceramic phase may be homogenously distributed within the alloy matrix.

A facile method is based on a pack-cementation process using large-area copper foil instead of copper powder. By controlling a pack-cementation time and an amount of alloying element (e.g., aluminum), a hierarchical microporous or nanoporous copper can be created. When coated with tin active material, the hierarchical microporous or nanoporous copper can be used as an advanced lithium-ion battery anode. A coin-cell test exhibited a four-fold higher areal capacity (e.g., 7.4 milliamp-hours per square centimeter without any performance degradation up to 20 cycles) as compared to a traditional graphite anode.