Superior mechanical properties of ZK60 mg alloy processed by equal channel angular pressing and rolling

被引：55
作者：
Yuan, Yuchun [1 ]
Ma, Aibin [1 ,2 ]
Gou, Xiaofan [1 ]
Jiang, Jinghua [1 ,2 ]
Lu, Fumin [1 ]
Song, Dan [1 ]
Zhu, Yuntian [3 ,4 ]
机构：
[1] Hohai Univ, Coll Mech & Mat, Nanjing 210098, Jiangsu, Peoples R China
[2] Jiangsu Collaborat Innovat Ctr Adv Micro Nano Mat, Nanjing 210094, Jiangsu, Peoples R China
[3] Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, Nanjing 210094, Jiangsu, Peoples R China
[4] N Carolina State Univ, Dept Mat Sci & Engn, Raleigh, NC 27695 USA
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2015年 / 630卷
基金：
中国国家自然科学基金;
关键词：
Mg alloy; ECAP; Rolling; Strength; Texture; MAGNESIUM ALLOY; TENSILE PROPERTIES; GRAIN-REFINEMENT; STRENGTH; MICROSTRUCTURE; DEFORMATION; EXTRUSION; ENHANCEMENT; IMPROVEMENT; DUCTILITY;
D O I：
10.1016/j.msea.2015.02.004
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A superior combination of ultrahigh strength and good ductility was achieved in ZK60 Mg alloy sheet processed by equal Channel Angular Pressing (ECAP) and subsequent cold rolling. The cold rolling almost doubled the yield strength while retaining moderate ductility. The ultrahigh strength was attributed to the ultrafine-grained structure with high density of dislocations. Nano-spaced parallel deformation strips were also observed and contributed to strength and strain hardening. The fine structure and non-basal texture of the rolled sheet rendered good ductility. (C) 2015 Published by Elsevier B.V.
引用
收藏
页码：45 / 50
页数：6
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