镁合金多向锻造技术的研究现状与展望  

Research Progress of Multi-directional Forged Magnesium Alloys:a Review

作　　者：钟丽萍 路迢迢 孙林超 张梅 王亮亮 王永建 ZHONG Liping;LU Tiaotiao;SUN Linchao;ZHANG Mei;WANG Liangliang;WANG Yongjian(Institute of Microstructure and Micro/Nanomechanics,School of Metallurgical Engineering,Anhui University of Technology,Ma’anshan 243002,Anhui,China)

机构地区：[1]安徽工业大学冶金工程学院,微纳组织与力学研究所,安徽马鞍山243002

出　　处：《材料导报》2024年第23期201-211,共11页Materials Reports

基　　金：安徽省自然科学基金(2108085QE185);安徽省教育厅重点项目(2022AH050316);国家自然科学基金(51901144)。

摘　　要：变形镁合金材料因密度低、比强度高等优点在汽车、轨道交通、航空航天等领域日益受到关注。然而,镁合金的强度低、室温塑性差、不耐腐蚀等问题极大地限制了其应用。近年来,大塑性变形技术因能够显著细化材料组织、提高材料的力学性能和耐腐蚀性能而受到广泛关注。相比其他大塑性变形技术,多向锻造技术具有工艺简单、效率高、成本低等优点,在航空航天和汽车工业领域具有很大的应用前景。本文综述了近年来镁合金多向锻造方面的相关文献,介绍了多向锻造成形镁合金的工艺过程,总结了锻造工艺参数对镁合金微观组织演化、力学性能及耐腐蚀性能的影响规律,最后展望了镁合金多向锻造技术的发展方向和需要解决的问题。With the advantages of low density and high specific strength,wrought magnesium alloys get growing attentions in the fields of automobile,rail transit,aerospace and other fields.However,due to the low strength,poor plasticity at room temperature and unsatisfied corrosion resistance,the application of magnesium alloys is greatly limited.In recent years,severe plastic deformation(SPD)has been widely concerned because of its ability to significantly refine the grain structure,improve mechanical properties and corrosion resistance of Mg alloys.Compared with other SPD processes,multi-direction forging(MDF)has many advantages,such as simple process,high efficiency and low cost.In this paper,recent literatures on MDF of Mg alloys are reviewed,the technical principles of forming Mg alloys by MDF process were introduced,and the effects of MDF parameters on microstructure evolution,mechanical properties and corrosion resistance of Mg alloys were summarized.Moreover,the future development and problems in the preparation of Mg alloy by MDF process are prospected.

关 键 词：镁合金 多向锻造 组织演化 力学性能 耐腐蚀性能 

分 类 号：TG319[金属学及工艺—金属压力加工]