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Castable high temperature aluminium alloy 发明申请

2023-12-16 2940 412K 0

专利信息

申请日期 2025-07-15 申请号 EP05250539
公开(公告)号 EP1561831A2 公开(公告)日 2005-08-10
公开国别 EP 申请人省市代码 全国
申请人 United Technologies Corporation
简介 A dispersion strengthened castable aluminum-rare earth alloy provides high strength at elevated temperatures. In one example, the aluminum alloy includes approximately 1.0 to 20.0% by weight of gadolinium, approximately 0.1 to 10.0% total by weight of other rare earth elements including ytterbium, erbium or yttrium, and approximately 0.1 to 15.0% total by weight of minor alloy elements. In another example, the aluminum alloy includes approximately 1.0 to 20% by weight of ytterbium, approximately 0.1 to 10.0% total by weight of other rare earth elements including gadolinium, erbium or yttrium, and approximately 0.1 to 10.0% total by weight of minor alloy elements. After casting, the aluminum alloy is solidified and cooled. During solidification, the aluminum matrix excludes the rare earth alloy elements from the aluminum matrix, forming eutectic rare earth element-containing dispersoids that strengthen the aluminum matrix.


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