镁合金MIG焊研究现状

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中图分类号：TG444.73 文献标志码：A 文章编号：1000-582X（2026）03-084-10

Research status of MIG welding of magnesium alloys

TONG Xiaoshan'，HUANG Jiaxin²，JIN Xihong'，FENG Xuhui²，WANG Ruanyu²， XIE Na²，PENG Jian² （1.CRRC Zhuzhou Electric LocomotiveCo.，Ltd.，Zhuzhou 412001，Hunan，P.R.China;2.National Magnesium Ally Materials Engineering Technology Research Center， School ofMaterials Science and Engineering， ChongqingUniversity， Chongqing 40oo44，P.R. China）

Abstract：Metal inert gas （MIG） welding providesadvantages such asa high depositionrate，high thermal efficiency，and suitability forautomated and eficient production.Due to their high specific strength and good damping performance，magnesium alloys have broad application prospects in transportation，aerospace，and other industries. MIG welding is considered a suitable joining method for magnesium alloys，and significant research efforts and technological developments have been devoted to this field.This paper presents the current research status of MIG welding of magnesium aloys，reviews related studies on droplet transfer modes， microstructure evolution，andMIG hybrid welding technologies，and discusses future research directions for MIG welding of magnesium alloys.

Keywords： metal inert gas （MIG） welding; magnesium alloys; MIG hybrid welding; welded joints

镁合金密度约 1.74g/cm3 ，是实际投入工程化应用的最轻的金属结构材料，比强度高、阻尼性能好、资源可再生且可循环利用[4]，被称为21世纪的绿色工程材料[5]，，尤其在航空航天、轨道交通及电子器件等工业领域具有显著的应用潜力]。（剩余17604字）