Memory disk sheet stock and method
    1.
    发明授权
    Memory disk sheet stock and method 失效
    记忆盘片材和方法

    公开(公告)号:US5601934A

    公开(公告)日:1997-02-11

    申请号:US465284

    申请日:1995-06-05

    IPC分类号: G11B5/73 G11B5/84 B32B3/00

    CPC分类号: G11B5/8404 G11B5/7315

    摘要: There is disclosed an improved memory disk stock comprised of an alloy composition which includes: about 1-11 wt. % magnesium, preferably between about 2-7 wt. % Mg; up to about 0.3 wt. % zirconium preferably about 0.02-0.25 wt. % Zr; up to about 0.2 wt. % iron, up to about 0.2 wt. % silicon, and about 0.02-0.2 wt. % of a dispersoid-forming element selected from scandium, erbium, thulium, lutetium, ytterbium, hafnium and yttrium, the balance aluminum and incidental elements and impurities. With preferably about 0.05-0.15 wt. % of scandium added to such compositions, these disk stocks exhibit significant room temperature yield strength increases over the same compositions without any scandium added.

    摘要翻译: 公开了一种由合金组合物组成的改进的存储盘存储器,其包括:约1-11wt。 %镁,优选约2-7wt。 %Mg; 高达约0.3wt。 %锆,优选约0.02-0.25wt。 %Zr; 高达约0.2wt。 %铁,高达约0.2wt。 %硅,和约0.02-0.2重量%。 选自钪,铒,ium,镥,镱,铪和钇的分散质形成元素的%,余量为铝和附带元素和杂质。 优选约0.05-0.15wt。 添加到这种组合物中的钪的百分比,这些盘状物料表现出显着的室温屈服强度增加超过相同组成而没有添加任何钪。