The influence of thermal exposure on the microstructure and stress rupture property of DZ951 nickel-base alloy

doi:10.1016/j.jallcom.2006.09.123

CORC > 金属研究所 > 中国科学院金属研究所

	The influence of thermal exposure on the microstructure and stress rupture property of DZ951 nickel-base alloy
	Xia, P. C.; Yu, J. J.; Sun, X. F.; Guan, H. R.; Hu, Z. Q.
刊名	JOURNAL OF ALLOYS AND COMPOUNDS
	2007-09-27
卷号	443 期号:1-2 页码:125-131
关键词	DZ951 alloy thermal exposure stress rupture property microstructure
ISSN号	0925-8388
DOI	10.1016/j.jallcom.2006.09.123
通讯作者	Xia, P. C.(pcxia@imr.ac.cn)
英文摘要	The effect of long-term exposure on the microstructure and the stress rupture property of a directionally solidified nickel-base superalloy was investigated. The results show that the MC carbide coarsens and the content of Nb in carbide increases with the rise of aging time. gamma' size increases and gamma' phase rafts with the rise of aging time at different aging temperatures. The driving force of rafting is the decrease of interface energy. There are bimodal gamma' precipitates at the aging temperature of 1100 degrees C. The stress rupture life at 850 degrees C/420 MPa reduces with the rise of aging time during aging treatment, which is attributed to the gamma' coarsening and the drop of -y' volume fraction. The fractographs at different conditions of aging treatments show ductile fracture mode. The fracture surface is related to the morphology and size of gamma' precipitate. (c) 2006 Elsevier B.V. All rights reserved.
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000248736800024
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/90833]
专题	金属研究所_中国科学院金属研究所
通讯作者	Xia, P. C.
作者单位	1.Chinese Acad Sci, Met Res Inst, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Xia, P. C.,Yu, J. J.,Sun, X. F.,et al. The influence of thermal exposure on the microstructure and stress rupture property of DZ951 nickel-base alloy[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2007,443(1-2):125-131.
APA	Xia, P. C.,Yu, J. J.,Sun, X. F.,Guan, H. R.,&Hu, Z. Q..(2007).The influence of thermal exposure on the microstructure and stress rupture property of DZ951 nickel-base alloy.JOURNAL OF ALLOYS AND COMPOUNDS,443(1-2),125-131.
MLA	Xia, P. C.,et al."The influence of thermal exposure on the microstructure and stress rupture property of DZ951 nickel-base alloy".JOURNAL OF ALLOYS AND COMPOUNDS 443.1-2(2007):125-131.