| 摘要 |
<p>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. </p> |
