Role of alloying and heat treatment on microstructure and mechanical properties of cast Al-Li alloys:A review  

作　　者：Guo-hua Wu You-jie Guo Fang-zhou Qi Shen Zhang Yi-xiao Wang Xin Tong Liang Zhang 

机构地区：[1]School of Materials Science and Engineering,Shanghai Jiao Tong University,Shanghai 200240,China

出　　处：《China Foundry》2024年第5期445-460,共16页中国铸造（英文版）

基　　金：financially sponsored by the National Natural Science Foundation of China(Nos.51821001 and 51871148).

摘　　要：Due to the prominent advantages of low density,high elastic modulus,high specific strength and specific stiffness,cast Al-Li alloys are suitable metallic materials for manufacturing complex large-sized components and are ideal structural materials for aerospace,defense and military industries.On the basis of the microstructural characteristics of cast Al-Li alloys,exploring the role of alloying and micro-alloying can stabilize their dominant position and further expand their application scope.In this review,the development progress of cast Al-Li alloys was summarized comprehensively.According to the latest research highlights,the influence of alloying and heat treatment on the microstructure and mechanical properties was systematically analyzed.The potential methods to improve the alloy performance were concluded.In response to the practical engineering requirements of cast Al-Li alloys,the scientific challenges and future research directions were discussed and prospected.

关 键 词：cast Al-Li alloy ALLOYING microstructure mechanical properties heat treatment 

分 类 号：TG146.21[一般工业技术—材料科学与工程]