Hot compression behavior and deformation microstructure of Mg-6Zn-1Al-0.3Mn magnesium alloy

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	Hot compression behavior and deformation microstructure of Mg-6Zn-1Al-0.3Mn magnesium alloy
	B. L. Shi; T. J. Luo; J. Wang; Y. S. Yang
	2013
发表期刊	Transactions of Nonferrous Metals Society of China
ISSN	1003-6326
卷号	23 期号:9 页码:2560-2567
摘要	The hot compression behavior of a wrought Mg-6Zn-1Al-0.3Mn magnesium alloy was investigated using Gleeble test at 200-400 degrees C with strain rates ranging from 0.01 to 7 s(-1). The true stress strain curves show that the hot deformation behavior significantly depends on the deformation temperature and strain rate. The calculated hot deformation activation energy Q is 166 kJ/mol with a stress exponent n=5.99, and the constitutive equation is deduced to be (epsilon)over dot=3.16x10(13)[sinh(0.010 sigma](5.99)exp [-1.66x10(5)/(RT)] Deformation microstructure shows that the incompletely dynamically recrystallized grains can be found at grain boundaries and twins with the strain rates ranging from 0.01 to 1 s(-1) at 250 degrees C, and completely dynamic recrystallization occurs when the temperature is 350 degrees C or above during hot compression, the size of recrystallized grains decreases with the increment of the strain.rate at the same temperature. The relatively suitable deformation condition is considered temperature 330-400 C and strain rate of 0.01-0.03 s(-1), and temperature of 350 degrees C and strain rate of 1 s(-1).
部门归属	[shi, bao-liang ; luo, tian-jiao ; wang, jing ; yang, yuan-sheng] chinese acad sci, inst met res, shenyang 110016, peoples r china. ; yang, ys (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china. ; ysyang@imr.ac.cn
关键词	Wrought Magnesium Alloy Hot Compression Stress Strain Recrystallization Dynamic Recrystallization Al Alloys Zn Alloys Mg Alloy Working
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/71454
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	B. L. Shi,T. J. Luo,J. Wang,et al. Hot compression behavior and deformation microstructure of Mg-6Zn-1Al-0.3Mn magnesium alloy[J]. Transactions of Nonferrous Metals Society of China,2013,23(9):2560-2567.
APA	B. L. Shi,T. J. Luo,J. Wang,&Y. S. Yang.(2013).Hot compression behavior and deformation microstructure of Mg-6Zn-1Al-0.3Mn magnesium alloy.Transactions of Nonferrous Metals Society of China,23(9),2560-2567.
MLA	B. L. Shi,et al."Hot compression behavior and deformation microstructure of Mg-6Zn-1Al-0.3Mn magnesium alloy".Transactions of Nonferrous Metals Society of China 23.9(2013):2560-2567.