A sliding-hearing composite material includes a steel supporting layer (10), an intermediate layer (12) based on an aluminum alloy that is free of lead, and a bearing metal layer (14) based on an aluminum alloy that is free of lead, wherein the aluminum alloy of the intermediate layer (12) has a composition having 3.5 to 4.5 wt % copper, 0.1 to 1.5 wt % manganese, 0.1 to 1.5 wt % magnesium, and the usual admissible impurities, the remainder being aluminum, and wherein the aluminum alloy of the bearing mental layer (14) has a composition having wt % tin, 1.0-3.0 wt % nickel, 0.5-1.0 wt % manganese, 0.5-1.0 wt % copper, 0.15-0.25 wt % chromium, 0.1-0.3 wt % vanadium, and the usual admissible impurities, he remainder being aluminum. A sliding bearing element and the use of the sliding-bearing composite material for sliding bearing element, particularly sliding bearing shells, sliding bearing bushes, or thrust washers is also disclosed.

A method for producing a rotary disk/blisk for a high-pressure compressor or a high-speed turbine and to a corresponding geared turbofan engine. The method involves providing a Ni base alloy comprising, in % by weight, 15.5-16.5 Cr, 14.0-15.5 Co, 4.75-5.25 Ti, 2.75-3.25 Mo. 2.25-2.75 Al, 1.00-1.50 W, as well as optionally 0.0250-0.0500 Zr, 0.0100-0.0200 B, 0.0100-0.0200 C, remainder Ni. The base alloy is shaped by forging to obtain a preform of the disk/blisk, the final contour thereof being produced by electrical discharge machining or electrochemical machining.

Wires for use in electron beam or plasma arc additive manufacturing of titanium alloys are disclosed. The wires have a first portion comprising a first material, and a second portion comprising a second material. The combination of the first and second materials results in a titanium alloy product of the appropriate composition.

An aluminum alloy for a slide bearing of the present invention contains: 0 mass % or more and 10.0 mass % or less of Sn and 0 mass % or more and 5.0 mass % or less of Si, 0 mass % or more and 2.0 mass % or less of Cu as a solid-solution strengthening component, at least one of 0.05 mass % or more and 0.35 mass % or less of Cr, 0.05 mass % or more and 1.5 mass % or less of Mn, and 0.05 mass % or more and 0.3 mass % or less of Zr as a precipitation strengthening component, 2.3 mass % or more and 6.0 mass % or less of Ag, a part of which is dissolved to form a solid solution and the rest of which is precipitated, and the balance consisting of unavoidable impurities and Al.

Alloys comprised of a refined microstructure, ultrafine or nano scaled, that when reacted with water or any liquid containing water will spontaneously and rapidly produce hydrogen at ambient or elevated temperature are described. These metals, termed here as aluminum based nanogalvanic alloys will have applications that include but are not limited to energy generation on demand. The alloys may be composed of primarily aluminum and other metals e.g. tin bismuth, indium, gallium, lead, etc. and/or carbon, and mixtures and alloys thereof. The alloys may be processed by ball milling for the purpose of synthesizing powder feed stocks, in which each powder particle will have the above mentioned characteristics. These powders can be used in their inherent form or consolidated using commercially available techniques for the purpose of manufacturing useful functional components.

New 6xxx aluminum alloy products and methods and systems of making the same are disclosed. A method may include heating a billet of a 6xxx aluminum alloy to a preheat temperature, holding the billet at the preheat temperature for a time sufficient to dissolve at least some precipitate hardening phases of the billet, extruding the billet into an extruded product wherein, during the extruding, both the billet and the extruded product are maintained at or above the preheat temperature, discharging the extruded product from the extrusion apparatus while maintaining the extruded product within 100° F. of a solvus temperature of the 6xxx aluminum alloy, and moving the extruded product from the heating shroud to a quenching apparatus.

A target for use in a physical vapor deposition process includes a matrix composed of a composite material selected from the group consisting of aluminum-based material, titanium-based material and chromium-based material and all combinations thereof. The matrix is doped with doping elements and the doping elements are embedded as constituents of ceramic compounds or aluminum alloys in the matrix. The doping elements are selected from the group of the lanthanides: La, Ce, Nb, Sm and Eu. A process for producing such a target and a use of such a target in a physical vapor deposition process are also provided.

The present invention relates to aluminium alloys in powder form having a content of at least two elements M from the group comprising Cr, Fe, Ni and Co and at least one element N from the group comprising Ti, Y and Ce, the alloy having a total amount of elements M in the range of 1 to 16 wt %, a total amount of elements N in the range of 0.5 to 5 wt % if the aluminium alloy contains Ti or Ce, and 1 to 10 wt %, if the aluminium alloy contains Y. Such aluminium alloys can be used in additive manufacturing processes, such as selective laser melting, to produce high-strength three-dimensional objects which can be used, for example, in engines for automobiles. The present invention further relates to processes and apparatuses for manufacturing three-dimensional objects from such aluminium alloys, processes for manufacturing such aluminium alloys in powder form, three-dimensional objects manufactured from such aluminium alloys in powder form, and specific aluminium alloys.

A powder metal material in order to be used in additive manufacturing, in which the powder metal material is an aluminum alloy, and the aluminum alloy contains at least one metal atom having a smaller atomic radius than that of aluminum and having a higher electron density than that of aluminum.

Metallic matrix composites include a high strength titanium aluminide alloy matrix and an in situ formed aluminum oxide reinforcement. The atomic percentage of aluminum in the titanium aluminide alloy matrix can vary from 40% to 48%. Included are methods of making the metallic matrix composites, in particular, through the performance of an exothermic chemical reaction. The metallic matrix composites can exhibit low porosity.