细晶镁合金超塑性研究进展  

Research progress on superplasticity of fine-grained magnesium alloys

作　　者：杨天龙 唐昌平 董宇 曾立英 黄磊 谢红梅 YANG Tianlong;TANG Changping;DONG Yu;ZENG Liying;HUANG Lei;XIE Hongmei(School of Materials Science and Engineering,Hunan University of Science and Technology,Xiangtan 411201,China;Hunan Provincial Engineering Research Centre for Forming Technology and Damage Resistance Evaluation of High Efficacy Light Alloy Components,Xiangtan 411201,China;Xiangtan Testing Center for Industrial and Mining Electric Drive Vehicles,Xiangtan 411200,China;School of Materials Science and Engineering,Changjiang Normal University,Chongqing 408100,China)

机构地区：[1]湖南科技大学材料科学与工程学院,湘潭411201 [2]高功效轻合金构件成形技术及耐损伤性能评价湖南省工程研究中心,湘潭411201 [3]湘潭市工矿电传动车辆质量检验中心,湘潭411200 [4]长江师范学院材料科学与工程学院,重庆408100

出　　处：《中国有色金属学报》2025年第3期785-804,共20页The Chinese Journal of Nonferrous Metals

基　　金：国家自然科学基金资助项目(52075167,52475345);湖南省自然科学基金资助项目(2020JJ4307);湖南省研究生科研创新项目(CX20240901)。

摘　　要：随着航空航天领域对复杂薄壁结构件的需求越来越迫切,轻质镁合金的超塑性成形受到广泛关注。本文综述了挤压、轧制和大塑性变形技术对镁合金晶粒细化和超塑性的影响,总结了超塑性变形机制。研究发现,通过搅拌摩擦加工、等通道转角挤压工艺制备的样品具有更优异的超塑性表现。最后,本文还针对细晶镁合金超塑性的发展方向提出了建议。Superplastic forming of lightweight magnesium alloy has received widespread attention with the increasingly urgent demand for complex thin-walled structural parts in aerospace field.This paper reviewed the effects of extrusion,rolling and severe plastic deformation techniques on grain refinement and superplasticity of magnesium alloys,and summarized the mechanism of superplastic deformation.It is found that the samples prepared by friction stir processed or equal channel angular pressing exhibit superior superplasticity performance.Finally,suggestions for the development direction of superplasticity in fine-grained magnesium alloys were proposed.

关 键 词：镁合金 超塑性 微观组织 变形机理 

分 类 号：TG146.2[一般工业技术—材料科学与工程]