High strength weldable al-mg alloy

Details High strength weldable al-mg alloy High strength weldable al-mg alloy

C - Chemistry, Metallurgy

22

C

C22C 21/06 (2006.01) C22C 1/02 (2006.01)

Patent

CA 2617528

An aluminium alloy product having high strength, excellent corrosion resistance and weldability, having the following composition in wt.%:- Mg 3.5 to 6.0 Mn 0.4 to 1.2 Fe < 0.5 Si < 0.5 Cu < 0.15 Zr < 0.5 Cr < 0.3 Ti 0.03 to 0.2 Sc < 0.5 Zn < 1.7 Li < 0.5 Ag < 0.4, optionally one or more of the following dispersoid forming elements selected from the group consisting of erbium, yttrium, hafnium, vanadium, each < 0.5 wt%, and impurities or incidental elements each < 0.05, total < 0.15 and the balance being aluminium.

L'invention porte sur un produit d'alliage d'aluminium ayant une haute résistance, une excellente résistance à la corrosion et une excellente soudabilité et dont la composition en pourcentage massique se répartit comme suit: Mg 3.5 à 6.0, Mn 0.4 à 1.2, Fe < 0.5, Si < 0.5, Cu < 0.15, Zr < 0.5, Cr < 0.3, Ti 0.03 à 0.2, Sc < 0.5, Zn < 1.7, Li < 0.5, Ag < 0.4, ledit produit renferme éventuellement un ou plusieurs éléments formant le dispersoïde, sélectionnés dans le groupe constitué d'erbium, yttrium, hafnium, vanadium, tous inférieurs à 0.5 en pourcentage massique, et des impuretés ou éléments fortuits, tous < 0.05, total < 0.15 et le reste se composant d'aluminium.

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