Achieving high strength-ductility synergy in a novel Mg-Bi-Sn-Mn alloy with bimodal microstructure by hot extrusion

被引：31
|
作者：
Luo, Yi-hao [1 ]
Cheng, Wei-li [1 ,2 ]
Li, Hang [1 ,2 ]
Yu, Hui [3 ]
Wang, Hong-xia [1 ,2 ]
Niu, Xiao-feng [1 ,2 ]
Wang, Li-fei [1 ,2 ]
You, Zhi-yong [1 ]
Hou, Hua [4 ]
机构：
[1] Taiyuan Univ Technol, Sch Mat Sci & Engn, Taiyuan 030024, Peoples R China
[2] Taiyuan Univ Technol, Minist Educ, Key Lab Interface Sci & Engn Adv, Taiyuan 030024, Peoples R China
[3] Hebei Univ Technol, Sch Mat Sci & Engn, Tianjin 300132, Peoples R China
[4] North Univ China, Sch Mat Sci & Engn, Taiyuan 030051, Peoples R China
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2022年 / 834卷
基金：
中国国家自然科学基金;
关键词：
Mg alloy; Extrusion; Tensile properties; Bimodal microstructure; Ultra-fine grains; MECHANICAL-PROPERTIES; EVOLUTION; TEXTURE; FINE;
D O I：
10.1016/j.msea.2022.142623
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A novel extruded Mg-5Bi-5Sn-1Mn alloy is developed and exhibits high yield strength (YS) of 446 MPa and ductility of 13.2%, resulting from the bimodal microstructure composed of coarse unDRXed grains with strong extrusion texture and dislocation storage capacity as well as ultra-fine DRXed grains (0.48 mu m).
引用
收藏
页数：6
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