C - Chemistry – Metallurgy – 22 – C
Patent
C - Chemistry, Metallurgy
22
C
75/19, 53/236
C22C 29/00 (2006.01) C22C 1/02 (2006.01) C22C 1/10 (2006.01) C22C 21/00 (2006.01) C22C 21/10 (2006.01) C22C 30/00 (2006.01)
Patent
CA 1097522
ABSTRACT OF THE DISCLOSURE Precipitation-hardenable, nitrided aluminum alloys are produced by forming an alloy of aluminum metal at a temperature up to about 800°C with a nitrided mother alloy of a specified composition which has been nitrided at a temperature of 800° to 1,200°C. The aluminum alloys are made precipitation-hardenable by the incorporation therein of a precipitation-hardening component such as copper, zinc and/or magnesium, and the precipitation- hardening component can be contained in the mother alloy undergoing nitridation. The alloy will, after having undergone solution-heat treatment, have improved mechanical properties, such as high tensile strength and hardness, over prior art aluminum structural materials.
246020
Goto Mituhiro
Hashimoto Isao
Itabashi Koji
Watanabe Shugo
Macrae & Co.
Mamiya Koki Kabushiki Kaisha
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