Aluminum alloy powder metal bulk chemistry formulation

Details Aluminum alloy powder metal bulk chemistry formulation Aluminum alloy powder metal bulk chemistry formulation

C - Chemistry, Metallurgy

22

C

C22C 21/16 (2006.01) C22C 1/04 (2006.01)

Patent

CA 2738936

A powder metal mixture is disclosed that provides improved mechanical properties for parts made from powder metal, such as cam caps. The powder metal mixture, upon sintering, forms an S phase intermetallic in the Al-Cu-Mg alloy system. The S phase is present in a concentration that results in an enhanced response to cold work strengthening of the powder metal part. Further, by minor adjustments to certain alloy elements, such as tin, the tensile properties of the resultant part may be adjusted.

L'invention porte sur un mélange de métal en poudre qui confère des propriétés mécaniques améliorées à des parties faites à partir d'un métal en poudre, telles que des capuchons de came. Le mélange métallique en poudre, lors du frittage, forme une phase S intermétallique dans le système d'alliage Al-Cu-Mg. La phase S est présente en une concentration qui conduit à une réponse améliorée au renforcement de travail à froid de la partie métallique en poudre. En outre, par des ajustements mineurs de certains éléments d'alliage, tels que l'étain, les propriétés d'allongement de la partie résultante peuvent être ajustées.

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