轻质金属的发展和应用:高强铝合金和镁合金  

Development and Applications of Lightweight Metal:High-strength Al and Mg Alloys

作　　者：王俊升 薛程鹏 王硕 田光元 苏辉 Wang Junsheng;Xue Chengpeng;Wang Shuo;Tian Guangyuan;Su Hui(School of Materials Science and Engineering,Beijing Institute of Technology;Advanced Research Institute of Multidisciplinary Science,Beijing Institute of Technology)

机构地区：[1]北京理工大学材料学院 [2]北京理工大学前沿交叉科学研究院

出　　处：《特种铸造及有色合金》2023年第2期145-152,共8页Special Casting & Nonferrous Alloys

基　　金：国家自然科学基金资助项目(52073030);区域联合基金(重点)资助项目(U20A20276)。

摘　　要：高强轻质合金在许多重要工程领域如汽车、海洋和航空航天应用占据重要的地位,Al/Mg-Li合金是最具代表性的高强轻质合金。Li的加入不仅减轻了铝/镁合金的质量,同时提高了强度和弹性模量。综述了最新的Al-Li和Mg-Li合金的微合金化、微观组织/缺陷以及先进的制造工艺和加工技术,旨在为未来轻质合金建立“成分-加工-微观结构-性能”的最佳组合提供参考。High-strength lightweight alloys occupy an outstanding position in many critical engineering fields such as automotive,marine and aerospace applications,among which Al/Mg-Li alloy is the most representative.Li addition not only reduces the weight of Al/Mg alloys,but also increases the strength and elastic modulus.The recent microalloying,microstructure/defects and advanced manufacturing process as well as processing technology of Al-Li and Mg-Li alloys were reviewed,aiming to provide guidance for building optimal combination of“composition-processing-microstructure-property”for lightweight alloys in the future.

关 键 词：AL-LI合金 MG-LI合金 微合金化 轻质合金 

分 类 号：TG146.2[一般工业技术—材料科学与工程] TG113.2[金属学及工艺—金属材料]