Greep behavior and microscopic mechanism of Mg-Y-Nd alloy

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	Greep behavior and microscopic mechanism of Mg-Y-Nd alloy
	Sha, GY ; Han, EH ; Yu, T ; Xu, YB ; Liu, L ; Gao, CZ
刊名	ACTA METALLURGICA SINICA
	2003-10-01
卷号	39 期号:10 页码:1025-1030
关键词	Mg-Y-Nd alloy creep precipitation strengthening MgO particle
ISSN号	0412-1961
通讯作者	Sha, GY()
英文摘要	The compress creep tests of the cast Mg-Y-Nd alloy were carried out at constant stress on Mayes fatigue machine in air. The results show that the creep resistance of the Mg-Y-Nd alloy is much higher when the temperature is lower than 300 degreesC for stress of 100 MPa, especially the steady creep rate at 200 degreesC decreases about three orders of magnitude than those of the Mg-Zn-Ce alloy and common AZ80 and AM60 alloys. Slipping and twinning are the fundamental modes of creep deformation for the alloy, the beta phases and dynamic precipitations during creep are the principal strengthening mechanism of the alloy, whereas the main reason for the decrease of the creep resistance is attributed to occurrence of the MgO particles at the interface between alpha-Mg matrix and beta phase, dynamic recrystallization as well as the fracture of the primary beta phases.
WOS研究方向	Metallurgy & Metallurgical Engineering
语种	英语
出版者	SCIENCE CHINA PRESS
WOS记录号	WOS:000186451300003
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/116021]
专题	金属研究所_中国科学院金属研究所
通讯作者	Sha, GY
作者单位	1.Harbin Engn Univ, Sch Mech Engn, Harbin 150001, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Sha, GY,Han, EH,Yu, T,et al. Greep behavior and microscopic mechanism of Mg-Y-Nd alloy[J]. ACTA METALLURGICA SINICA,2003,39(10):1025-1030.
APA	Sha, GY,Han, EH,Yu, T,Xu, YB,Liu, L,&Gao, CZ.(2003).Greep behavior and microscopic mechanism of Mg-Y-Nd alloy.ACTA METALLURGICA SINICA,39(10),1025-1030.
MLA	Sha, GY,et al."Greep behavior and microscopic mechanism of Mg-Y-Nd alloy".ACTA METALLURGICA SINICA 39.10(2003):1025-1030.