Effect of Re content on precipitation behaviour of secondary phases in a single-crystal Ni-based superalloy during high-temperature thermal exposure

doi:10.1080/09603409.2017.1367155

IMR OpenIR

	Effect of Re content on precipitation behaviour of secondary phases in a single-crystal Ni-based superalloy during high-temperature thermal exposure
	Liu Lirong 1; Chen Maokai 1; Tian Sugui 1; Zhang Zhongyuan 2; Jin Tao 2
通讯作者	Liu Lirong(lrliu@sut.edu.cn)
	2018
发表期刊	MATERIALS AT HIGH TEMPERATURES
ISSN	0960-3409
卷号	35 期号:4 页码:355-362
摘要	The precipitation of secondary phases in single-crystal Ni-based superalloys with different contents of Re are investigated using TEM and SEM.The results show that after full heat treatment, the size of secondary gamma' phase decreases gradually with increasing Re content. During long-term thermal exposure at 1093 degrees C, some needle-like and rod-like secondary phases precipitate from the gamma matrix. With increasing Re content and prolonging of the thermal exposure, the amounts of precipitated phases clearly increase. In the alloy with 2.5 wt-% Re, the needle-like phases are identified as M6C carbides. In the alloy with 3 wt-% Re, both M6C carbides and mu phase are found. In the alloy with 15 wt% Re, the needle-like and rod-like precipitated phases are identified as mu and P phases. Stacking fault was found in the P phase and that part was identified as mu phase by SAD; that is, there is intergrowth of P and mu phases.
关键词	Single-crystal superalloy rhenium precipitated phase thermal exposure
DOI	10.1080/09603409.2017.1367155
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:000432282500006
出版者	TAYLOR & FRANCIS LTD
引用统计	被引频次：5[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/321006/128307
专题	中国科学院金属研究所
通讯作者	Liu Lirong
作者单位	1.Shenyang Univ Technol, Mat Sci & Engn Sch, Shenyang, Liaoning, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Dept Superalloys, Shenyang, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Liu Lirong,Chen Maokai,Tian Sugui,et al. Effect of Re content on precipitation behaviour of secondary phases in a single-crystal Ni-based superalloy during high-temperature thermal exposure[J]. MATERIALS AT HIGH TEMPERATURES,2018,35(4):355-362.
APA	Liu Lirong,Chen Maokai,Tian Sugui,Zhang Zhongyuan,&Jin Tao.(2018).Effect of Re content on precipitation behaviour of secondary phases in a single-crystal Ni-based superalloy during high-temperature thermal exposure.MATERIALS AT HIGH TEMPERATURES,35(4),355-362.
MLA	Liu Lirong,et al."Effect of Re content on precipitation behaviour of secondary phases in a single-crystal Ni-based superalloy during high-temperature thermal exposure".MATERIALS AT HIGH TEMPERATURES 35.4(2018):355-362.