Enhancing mechanical properties of an Mg-Zn-Ca alloy via extrusion

被引：10
作者：
Du, Yuzhou [1 ,2 ]
Du, Wei [1 ]
Zhang, Danli [3 ]
Ge, Yanfeng [1 ,2 ]
Jiang, Bailing [1 ,2 ]
机构：
[1] Xian Univ Technol, Sch Mat Sci & Engn, Xian 710048, Peoples R China
[2] Xian Univ Technol, Shaanxi Prov Engn Res Ctr Magnesium Alloys, Xian 710048, Peoples R China
[3] Xi An Jiao Tong Univ, Sch Mat Sci & Engn, Xian, Peoples R China
来源：
MATERIALS SCIENCE AND TECHNOLOGY | 2021年 / 37卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Mg-Zn-Ca; extrusion; recrystallisation; dynamic precipitation; mechanical properties; MN ALLOY; MICROSTRUCTURE; TEXTURE; DEFORMATION; TEMPERATURE; STRENGTH; CORROSION; SHEET;
D O I：
10.1080/02670836.2021.1938861
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The mechanical properties of an Mg-Zn-Ca alloy were significantly improved through extrusion deformation. High-density spheroidal Ca2Mg6Zn3 with a diameter ranging from 10 to 50 nm dynamically precipitated during extrusion deformation. The microstructure of the as-extruded alloy was obviously refined compared with that of the as-cast counterpart. A bimodal microstructure consisting of coarsely deformed grains and finely recrystallised grains was obtained through extrusion. Additionally, the as-extruded alloy exhibited a strong basal texture. Consequently, the yield strength increased from 42 MPa of the as-cast alloy to 285 MPa of the as-extruded alloy.
引用
收藏
页码：624 / 631
页数：8
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