摘要
稀土元素作为微量元素加入铝、镁合金中 ,可以净化合金熔体 ,细化、变质微观组织 ,减少夹杂。随着稀土元素加入量的增加 ,可以显著提高铝、镁合金的综合性能特别是高温力学性能。综述了含稀土铝合金和稀土镁合金的研究、发展和应用现状 ,着重介绍了稀土对铝镁合金冶炼、工艺和合金化的影响。展望了稀土铝。
The addition of rare earth(RE) as trace elements to aluminum or magnesium alloys can purify the melts,refine and modify the microstructure,reduce the inclusion . The addition of more RE elements can significantly enhance the comprehensive properties,especially mechanical behavior at high temperature. Research, development, and application for RE-containing Al alloys and RE-containing Mg alloys is reviewed with the emphasis on the effect of RE elements on melting,processing, and alloying of alloys. The future development of RE-containing Al alloys and RE-containing Mg alloys is prospected.
出处
《材料工程》
EI
CAS
CSCD
北大核心
2004年第8期60-64,共5页
Journal of Materials Engineering
关键词
稀土
铝合金
镁合金
rare earth
aluminum Alloy
magnesium alloy
