C - Chemistry – Metallurgy – 22 – C
Patent
C - Chemistry, Metallurgy
22
C
75/2, 75/1.1
C22C 45/08 (2006.01)
Patent
CA 1304607
HIGH STRENGTH, HEAT RESISTANT ALUMINUM ALLOYS AND METHOD OF PREPARING WROUGHT ARTICLES THEREFROM ABSTRACT OF THE DISCLOSURE The present invention provides high-strength, heat resistant aluminum alloys having a composition represented by the general formula: AlaMbXd or AlaMbQcXe (wherein M is at least one metal element selected from the group consisting of Cu, Ni, Co and Fe; Q is at least one metal element selected from the group consisting of Mn, Cr, Mo, W, V, Ti and Zr; X is at least one metal element selected from the group consisting of Nb, Ta, Hf and Y ; and a, b, c, d and e are atomic percentages falling within the following ranges: 45? a ? 90, 5 ? b ? 40, 0 < c ? 12, 0.5 ? d? 20 and 0.5 ? e ? 10, the aluminum alloy containing at least 50% by volume of amorphous phase. The aluminum alloys are especially useful as high strength, high heat resistant materials in various applications and since they exhibit a superplasticity in the vicinity of their crystallization temperature, they provide high-strength and heat resistant wrought materials by extrusion, pressing or hot-forging at the temperatures within the range of the crystallization temperature ? 100°C.
573600
Inoue Akihisa
Masumoto Tsuyoshi
Odera Katsumasa
Oguchi Masahiro
Gowling Lafleur Henderson Llp
Masumoto Tsuyoshi
Ykk Corporation
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