| 摘要 |
An aluminium base alloy having a composition selected from:-… (i) Cr 1.5% to 7.0% by weight… Zr 0.5% to 2.5% by weight… Mn 0.25% to 4.0% by weight… Al remainder including normal impurities, and… (ii) 7000 series Al alloys containing as added constituents:-… Cr 0.5% to 3.0% by weight… Zr 0.5% to 2.5% by weight… Mn 0.1% to 2.0% by weight. |
