Precipitation Behavior during ageing treatment of a single crystal nickel-base superalloy

IMR OpenIR

	Precipitation Behavior during ageing treatment of a single crystal nickel-base superalloy
	Yang, DY; Jin, T; Zhao, NR; Wang, ZH; Sun, XF; Guan, HR; Hu, ZQ
通讯作者	Yang, DY(dyyang@imr.ac.cn)
	2005
发表期刊	PRICM 5: THE FIFTH PACIFIC RIM INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS AND PROCESSING, PTS 1-5
ISSN	0255-5476
卷号	475-479 页码:673-676
摘要	The precipitation behavior during ageing treatment of a single crystal nickel-base superalloy was investigated by SEM and TEM. The results showed that tetragonal needle-like G phase and blocky alpha-W phase precipitated during low temperature ageing treatment after this testing alloy was completely solution heat treated. sigma and alpha-W phases robbed of solid solution strengthening alloying element W Mo in the matrix and degraded high temperature creep rupture property severely. The creep curve of the crystal tested at 1010 degrees C and 248 MPa exhibited that the steady state creep rate epsilon was as high as 9.46 x 10(-3)/h. The creep-rupture life was only 25 hours. alpha-W phase was not formed by decrease of W content properly. A relatively low level of Co could inhibit sigma phase precipitation and improve microstructural stability.
关键词	single crystal nickel-base superalloy ageing sigma phase alpha-w phase alloying element
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:000227494709154
出版者	TRANS TECH PUBLICATIONS LTD
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/82929
专题	中国科学院金属研究所
通讯作者	Yang, DY
作者单位	Chinese Acad Sci, Met Res Inst, Dept Superalloys, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Yang, DY,Jin, T,Zhao, NR,et al. Precipitation Behavior during ageing treatment of a single crystal nickel-base superalloy[J]. PRICM 5: THE FIFTH PACIFIC RIM INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS AND PROCESSING, PTS 1-5,2005,475-479:673-676.
APA	Yang, DY.,Jin, T.,Zhao, NR.,Wang, ZH.,Sun, XF.,...&Hu, ZQ.(2005).Precipitation Behavior during ageing treatment of a single crystal nickel-base superalloy.PRICM 5: THE FIFTH PACIFIC RIM INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS AND PROCESSING, PTS 1-5,475-479,673-676.
MLA	Yang, DY,et al."Precipitation Behavior during ageing treatment of a single crystal nickel-base superalloy".PRICM 5: THE FIFTH PACIFIC RIM INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS AND PROCESSING, PTS 1-5 475-479(2005):673-676.