Stress Rupture Performances and Fracture Behavior of DZ951 Alloy

IMR OpenIR

	Stress Rupture Performances and Fracture Behavior of DZ951 Alloy
	Chu Zhaokuang 1,2; Yu Jinjiang 1; Sun Xiaofeng 1; Guan Hengrong 1; Hu Zhuangqi 1
通讯作者	Chu Zhaokuang(zkchu@imr.ac.cn)
	2009-05-01
发表期刊	RARE METAL MATERIALS AND ENGINEERING
ISSN	1002-185X
卷号	38 期号:5 页码:834-837
摘要	The stress rupture performances of a directionally solidified Ni-base superalloy DZ951 have been investigated over a wide stress range of 50 to 970 MPa at high temperatures (650 to 1040 degrees C). The fracture surface and deformation microstructure were examined by SEM. The results show that the stress rupture strength of DZ951 alloy is much higher than that of DZ40M and almost the same as that of DZ17G alloy. It is suggested that gamma' particles remain cubic shape below 800 degrees C, and when the test temperature reaches 900 degrees C, gamma' particles form fine rafted structure. At low temperature (<760 degrees C), the fracture mode is cleavage-like. At intermediate temperature (760-850 degrees C), the fracture mode shows both cleavage feature and quasi-cleavage feature, and cracks can initiate at the carbide/matrix interface. At high temperature (>850 degrees C), the fracture mode turns to be microviod coalessence fracture and the alloy is sensitive to the shrinkage porosity.
关键词	directionally solidified Ni-base superalloy stress rupture properties microstructure fructure behavior
收录类别	SCI
语种	英语
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000266835500019
出版者	NORTHWEST INST NONFERROUS METAL RESEARCH
引用统计	被引频次：2[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/321006/98903
专题	中国科学院金属研究所
通讯作者	Chu Zhaokuang
作者单位	1.Chinese Acad Sci, Inst Met Res, 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	Chu Zhaokuang,Yu Jinjiang,Sun Xiaofeng,et al. Stress Rupture Performances and Fracture Behavior of DZ951 Alloy[J]. RARE METAL MATERIALS AND ENGINEERING,2009,38(5):834-837.
APA	Chu Zhaokuang,Yu Jinjiang,Sun Xiaofeng,Guan Hengrong,&Hu Zhuangqi.(2009).Stress Rupture Performances and Fracture Behavior of DZ951 Alloy.RARE METAL MATERIALS AND ENGINEERING,38(5),834-837.
MLA	Chu Zhaokuang,et al."Stress Rupture Performances and Fracture Behavior of DZ951 Alloy".RARE METAL MATERIALS AND ENGINEERING 38.5(2009):834-837.