稀土元素在铝合金中的应用研究  

Research on the application of rare earth elements in aluminum alloys

作　　者：庄佳钰 宋篪 ZHUANG Jiayu;SONG chi(Liaoning Inspection Examination&Certification Center Liaoning Product Quality Supervision and Inspection Institute, Shenyang 110014)

机构地区：[1]辽宁省检验检测认证中心辽宁省产品质量监督检验院,沈阳110014

出　　处：《五金科技》2024年第3期78-80,共3页Hardware

基　　金：辽宁省检验检测认证中心青年人才创新创业项目资助。

摘　　要：在铸造铝合金中添加4.4%~5%的稀土元素,可大幅提升铝合金的综合性能,特别是室温力学性能,稀土铝合金广泛的应用于飞机、汽车等复杂零部件的制造。本文简要介绍了铝合金中稀土元素的增强作用,包括微合金化作用、净化作用和变质作用,分析了各种增强作用的微观机制,为开发更多系列的稀土铝合金提供理论支撑。Adding 4.4% to 5% rare earth elements to cast aluminum alloys can significantly improve their comprehensive properties, especiallyroom temperature mechanical properties. Rare earth aluminum alloys are widely used in the manufacturing of complex components suchas airplanes and automobiles. This article briefly introduces the strengthening effects of rare earth elements in aluminum alloys, includingmicroalloying, purification, and modification effects. It analyzes the micro mechanisms of various strengthening effects, providingtheoretical support for the development of more series of rare earth aluminum alloys.

关 键 词：稀土铝合金 微合金化作用 净化作用 变质作用 

分 类 号：TS912[轻工技术与工程]