长周期结构增强镁合金的研究进展  

Research Progress of Long Period Stacking Ordered Structure Reinforced Mg Alloys

作　　者：付丽丽[1,2] 邱克强[1] 任英磊[1] 于波[3] FU Lili QIU Keqiang REN Yinglei YU Bo(School of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110870 Petrol-Chemical Department,Liaoning Petrol-Chemical Vocational and Techonology College,Jinzhou 121001 Shenyang Research Institute of Foundry,Shenyang 110022)

机构地区：[1]沈阳工业大学材料科学与工程学院,沈阳110870 [2]辽宁石化职业技术学院石油化工系,锦州121001 [3]沈阳铸造研究所,沈阳110022

出　　处：《材料导报》2016年第17期152-157,共6页Materials Reports

基　　金：国家重点基础研究发展计划资助项目(973计划)(2011CB606301)

摘　　要：镁合金具有低密度、高比强度、易回收利用等优点,在电子、汽车、航空航天等领域得到了广泛的应用。但是镁合金强度低、变形加工困难等缺点成为阻碍其大规模应用的主要问题。长周期堆垛有序(LPSO)结构增强镁合金具有较高的强度和较好的塑性,引起了人们的广泛关注。列举了镁合金中5种长周期结构类型及其研究进展,分析了常见的4种长周期结构制备方法的特点,阐述了5种长周期结构特征及其表征方法,分析了长周期结构的强化机制,指出了今后的研究方向。Magnesium alloy has the advantages of low density,high specific strength,easy recycling and so on.It has been widely used in the fields of electronics,automobile and aerospace.However,it has become a major problem in the large scale application of magnesium alloys because of its low strength,its difficulty of deformation processing and so on.The long period stacking ordered（LPSO）structure reinforced magnesium alloy has aroused wide attention because of its better strength and plasticity.Five types of LPSO structure and their research progress in magnesium alloys are listed.The preparation methods of the LPSO structure are analyzed.Five types of LPSO structures and the corresponding characterization methods are described.The strengthening mechanism of LPSO structure is analyzed and the future research direction is pointed out.

关 键 词：镁合金 长周期结构 表征方法 强化机制 

分 类 号：TG146.22[一般工业技术—材料科学与工程]