Investigation of the compressive creep behavior of AZ91D magnesium alloy

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	Investigation of the compressive creep behavior of AZ91D magnesium alloy
	J. H. Guo; L. Q. Chen; B. Xu; Z. Lian
	2007
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	443 期号:1-2 页码:66-70
摘要	The creep resistance of AZ91D alloy has been studied in uniaxial compression tests at temperature ranges from 275 degrees C to 325 degrees C. The initial microstructure of the alloy consists of alpha phase and beta phase precipitated in the grain boundary. The minimum creep rate dependence on applied stress and the temperature is also analyzed in detail. We find that the stress exponent n is close to the theoretical values (3 or 5) and the activation energy Q for creep varies from 121 kJ/mol to 171 kJ/mol. Creep could be controlled by higb-temperature climb and cross-slip of dislocation at different temperatures. (c) 2006 Elsevier B.V. All rights reserved.
部门归属	northeastern univ, sch met & mat, shenyang 110004, peoples r china. chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;guo, jh (reprint author), northeastern univ, sch met & mat, shenyang 110004, peoples r china;guojinhua@atmcn.com
关键词	Creep Az91d Magnesium Alloy Dislocation Steady Creep Rate
URL	查看原文
WOS记录号	WOS:000242901200009
引用统计	被引频次：16[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/33557
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. H. Guo,L. Q. Chen,B. Xu,et al. Investigation of the compressive creep behavior of AZ91D magnesium alloy[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2007,443(1-2):66-70.
APA	J. H. Guo,L. Q. Chen,B. Xu,&Z. Lian.(2007).Investigation of the compressive creep behavior of AZ91D magnesium alloy.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,443(1-2),66-70.
MLA	J. H. Guo,et al."Investigation of the compressive creep behavior of AZ91D magnesium alloy".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 443.1-2(2007):66-70.