超轻镁锂合金强化方法的研究现状  

Research Progress on Strengthening Methods of Ultra-lightweight Mg-Li Alloys

作　　者：王硕 许道奎[1,3,4] 王东亮 王保杰 张志强 WANG Shuo;XU Daokui;WANG Dongliang;WANG Baojie;ZHANG Zhiqiang(Key Laboratory of Nuclear Materials and Safety Assessment,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China;Key Lab of Electromagnetic Processing of Materials,Ministry of Education,Northeastern University,Shenyang 110819,China;School of Materials Science and Engineering,University of Science and Technology of China,Shenyang 110016,China;Shandong Key Laboratory of Advanced Aluminium Materials and Technology,Binzhou Institute of Technology,Binzhou 256606,China;School of Environmental and Chemical Engineering,Shenyang Ligong University,Shenyang 110159,China)

机构地区：[1]中国科学院金属研究所,中国科学院核用材料与安全评价重点实验室,沈阳110016 [2]东北大学,材料电磁过程研究教育部重点实验室,沈阳110819 [3]中国科学技术大学材料科学与工程学院,沈阳110016 [4]滨州魏桥国科高等技术研究院,山东省先进铝基材料与技术重点实验室,滨州256606 [5]沈阳理工大学环境与化学工程学院,沈阳110159

出　　处：《机械工程材料》2023年第5期94-101,共8页Materials For Mechanical Engineering

基　　金：国家自然科学基金资助项目(U21A2049,51871211,52071220,51701129,51971054);辽宁省“兴辽英才计划”项目(XLYC1907062);辽宁省自然科学博士启动基金资助项目(2019-BS-200);辽宁省“百千万人才工程”资助B类项目;魏桥国科高研院-中科院金属所研发项目(GYYJSBU-2022-009)。

摘　　要：镁锂合金作为密度最小的金属结构材料,具有高比强度和比刚度、优异的阻尼性能和电磁屏蔽性能等优点,但其绝对强度低,极大限制了其在实际工程中的规模化应用。对近年来镁锂合金的合金化强化、变形加工强化、热处理强化以及复合强化等强化方法的研究现状进行了总结,并给出了未来镁锂合金强化方法的研究方向。As the smallest density metal structure material,Mg-Li alloys have advantages of high specific strength and specific stiffness,excellent damping performance and electromagnetic shielding performance,but the low absolute strength greatly limits their wide application in practical engineering.The research status on strengthening methods of Mg-Li alloys such as alloying strengthening,deformation processing strengthening,heat treatment strengthening and composite strengthening in recent years are summarized.The future research direction of strengthening methods of Mg-Li alloys is prospected.

关 键 词：镁锂合金 力学性能 强化方法 强化机制 

分 类 号：TG146.2[一般工业技术—材料科学与工程]