Research on Microstructure and Properties of Mg-1.5Zn-0.2Ca Alloy Extruded at Moderate Temperature

被引：0
|
作者：
Zhang H. [1 ,2 ]
Ding Y. [1 ,2 ]
Lei J. [1 ,2 ]
Shen Y. [1 ,2 ]
Chen J. [1 ,2 ]
Gao Y. [1 ,2 ]
机构：
[1] School of Material Science and Engineering, Lanzhou University of Technology, Lanzhou
[2] State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou
来源：
Cailiao Daobao/Materials Reports | 2022年 / 36卷 / 03期
关键词：
Dynamic recrystallization; Extrusion; Grain refinement; Mg-1.5Zn-0.2Ca alloy;
D O I：
10.11896/cldb.20120264
中图分类号：
学科分类号：
摘要：
Grain refinement can effectively improve the mechanical properties of magnesium alloy. Based on this, study was conducted on the Mg-1.5Zn-0.2Ca alloy and the microstructure of its alloys was regulated by moderate temperature extrusion process. The analysis of extruded alloy showed that, with decreasing of extrusion temperature, the deformation model of Mg-1.5Zn-0.2Ca alloy gradually changes, at the same time the grain size of extruded alloys also decreases, and the extruded alloys exhibit much better mechanical properties. The alloy is dominated by combination of basal slip and twining when extruded at 280 ℃, gaining the dynamic recrystallized (DRXed) grains for average size of 5.3 μm, while the yield strength, ultimate tensile strength and elongation are 95 MPa, 186 MPa and 22%, respectively. © 2022, Materials Review Magazine. All right reserved.
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