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镁锂合金是密度最小的合金材料，具有比强度高、塑性好、易切削加工、低温韧性好、良好的电磁屏蔽效能、减震性能和可回收性等优点，受到研究学者的高度重视和大力研究。但绝对强度过低是影响镁锂合金应用的主要瓶颈，而合金化、塑性变形和热处理是强化镁锂合金最常用的强化手段。总结了合金化、塑性变形和热处理3种强化手段强化镁锂合金的研究成果，展示了合金化、塑性变形和热处理对镁锂合金组织演化和力学性能的影响，揭示了镁锂合金在不同强化手段下的微观演化机理和强化机制，指出了镁锂合金现阶段遇到的问题。最后，展望了镁锂合金未来的研究趋势。
Abstract：Mg-Li alloy is the alloy material with the least dense, with the advantages of high specific strength, good plasticity, easy cutting, good low temperature toughness, good electromagnetic shielding effectiveness, shock absorption performance and recyclability, etc., which is highly regarded and vigorously studied by researchers.However, too low absolute strength is the main bottleneck that affecting the application of Mg-Li alloy, and alloying, plastic deformation and heat treatment are the most common strengthening methods for Mg-Li alloy.The research results of strengthening for Mg-Li alloy by alloying, plastic deformation and heat treatment were summarized, the effects of alloying, plastic deformation and heat treatment on the microstructure evolution and mechanical properties of Mg-Li alloy were shown. The microscopic evolution mechanism and strengthening mechanism of Mg-Li alloy under different strengthening methods were revealed, and the problems encountered at the present stage of Mg-Li alloy were pointed out. Finally, the future research trend of Mg-Li alloy was prospected.
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基本信息:
中图分类号:TG146.22
引用信息:
[1]杨迪,闫亮明.镁锂合金强化行为研究现状[J],2023,30(01):1-10.
基金信息:
国家自然科学基金资助项目(51764043);; 内蒙古自然科学基金资助项目(2020MS05061);; 内蒙古自治区高等学校“青年科技英才支持计划”(NJYT-20-A16)