Low density aluminum lithium alloy
    3.
    发明授权
    Low density aluminum lithium alloy 失效
    低密度铝合金

    公开(公告)号:US5234662A

    公开(公告)日:1993-08-10

    申请号:US655629

    申请日:1991-02-15

    IPC分类号: C22C21/12 C22C21/16 C22F1/057

    CPC分类号: C22F1/057 C22C21/12 C22C21/16

    摘要: Aluminum based alloy primarily for use in aircraft and aerospace components consists essentially of the composition: 2.60 to 3.30 weight percent copper, 0.0 to 0.50 weight percent manganese, 1.30 to 1.65 weight percent lithium, 0.0 to 1.8 percent magnesium, and from 0.0 to 1.5 weight percent of grain refinement elements selected from the group consisting of zirconium, and chromium. Up to about 0.5 wt. % zinc and up to about 1.5 wt. % titanium may also be present. Minor impurities may also be present. These alloys exhibit an improved combination of characteristics including low density, high strength, high corrosion resistance and good fracture toughness.

    摘要翻译: 主要用于飞机和航空航天部件的铝基合金基本上由以下组成组成:铜,铜,铜0.0-0.50重量%,锂1.30-1.65重量%,氧化物0.0-1.8重量%,重量百分比0.0-1.5重量% 百分比的选自锆和铬的晶粒细化元素。 高达约0.5wt。 %锌和至多约1.5重量% 也可以存在%钛。 也可能存在微量杂质。 这些合金表现出包括低密度,高强度,高耐腐蚀性和良好的断裂韧性的改进的组合。