Heat-resistant aluminium alloys

被引：11
|
作者：
Shyam, Amit [1 ]
Bahl, Sumit [1 ]
机构：
[1] Oak Ridge Natl Lab, Mat Sci & Technol Div, Alloy Behav & Design Grp, Oak Ridge, TN 37830 USA
来源：
NATURE MATERIALS | 2023年 / 22卷 / 04期
关键词：
D O I：
10.1038/s41563-022-01436-6
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Scandium added to Al-Cu-Mg-Ag alloys leads to an in situ phase transformation of coherent Cu-rich nanoprecipitates at elevated temperature, with Sc atoms diffusing and occupying their interstitial sites. The transformed nanoprecipitates have enhanced thermal stability while maintaining a large volume fraction and these two microstructural features enable high tensile strength of the Al alloy with creep resistance up to 400 degrees C.
引用
收藏
页码：425 / 426
页数：2
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