STUDY ON HIGH CYCLE FATIGUE PROPERTIES OF DZ468 SUPERALLOY

doi:10.3724/SP.J.1037.2009.00600

CORC > 金属研究所 > 中国科学院金属研究所

	STUDY ON HIGH CYCLE FATIGUE PROPERTIES OF DZ468 SUPERALLOY
	Liu Enze; Zheng Zhi; Tong Jian; Ning Likui; Guan Xiurong
刊名	ACTA METALLURGICA SINICA
	2010-06-11
卷号	46 期号:6 页码:708-714
关键词	Ni-based superalloy high cycle fatigue property fracture
ISSN号	0412-1961
DOI	10.3724/SP.J.1037.2009.00600
通讯作者	Liu Enze(nzliu@imr.ac.cn)
英文摘要	The high cycle fatigue properties of a new type Ni-based superalloy DZ468 were investigated in this paper. The high cycle fatigue strengths of DZ468 alloy at 900 and 760 degrees C with a ratio of stress R=-1 reach 290 and 300 MPa, respectively. The high cycle fatigue fractures of DZ468 alloy were composed of fatigue source, fatigue district and final stage. Cracks originate from surface, sub-surface and inner defect of sample. At 900 and 760 degrees C, stage I and stage II crack propagation could be observed from fatigue fracture, which was caused by the combination action of planar slip, cross slip and climb of dislocations. With increasing of stress value, the crack propagation rate quickly increase. A correlation exists between the crack propagation mode and deformation mode.
WOS研究方向	Metallurgy & Metallurgical Engineering
语种	英语
出版者	SCIENCE CHINA PRESS
WOS记录号	WOS:000280030800010
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/101120]
专题	金属研究所_中国科学院金属研究所
通讯作者	Liu Enze
作者单位	Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Liu Enze,Zheng Zhi,Tong Jian,et al. STUDY ON HIGH CYCLE FATIGUE PROPERTIES OF DZ468 SUPERALLOY[J]. ACTA METALLURGICA SINICA,2010,46(6):708-714.
APA	Liu Enze,Zheng Zhi,Tong Jian,Ning Likui,&Guan Xiurong.(2010).STUDY ON HIGH CYCLE FATIGUE PROPERTIES OF DZ468 SUPERALLOY.ACTA METALLURGICA SINICA,46(6),708-714.
MLA	Liu Enze,et al."STUDY ON HIGH CYCLE FATIGUE PROPERTIES OF DZ468 SUPERALLOY".ACTA METALLURGICA SINICA 46.6(2010):708-714.