中低温挤压Mg-1.5Zn-0.2Ca合金组织与性能研究

doi:10.11896/cldb.20120264

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Abstract 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.

Key words： Mg-1.5Zn-0.2Ca alloy extrusion dynamic recrystallization grain refinement

Published: Online: 2022-02-10

CLC number:

TG379

Fund:Program for Hongliu First-class Discipline Construction Plan of Lanzhou University of Technology.

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	Articles by authors
	ZHANG Hongfei
	DING Yutian
	LEI Jian
	SHEN Yue
	CHEN Jianjun
	GAO Yubi

Cite this article:

ZHANG Hongfei,DING Yutian,LEI Jian, et al. Research on Microstructure and Properties of Mg-1.5Zn-0.2Ca Alloy Extruded at Moderate Temperature[J]. Materials Reports, 2022, 36(3): 20120264-5.

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http://www.mater-rep.com/EN/10.11896/cldb.20120264 OR http://www.mater-rep.com/EN/Y2022/V36/I3/20120264

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