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

被引：7

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

页码：624 / 631

页数：8

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