Effects of rejuvenation heat treatment on microstructure and creep property of a Ni-based single crystal superalloy

doi:10.1016/j.jmst.2020.05.032

IMR OpenIR

	Effects of rejuvenation heat treatment on microstructure and creep property of a Ni-based single crystal superalloy
	Tan, K. J.1,2; Wang, X. G.1; Liang, J. J.1; Meng, J.1; Zhou, Y. Z.1; Sun, X. F.1
通讯作者	Wang, X. G.(xgwang11b@imr.ac.cn) ; Meng, J.(jmeng@imr.ac.cn)
	2021-01-10
发表期刊	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN	1005-0302
卷号	60 页码:206-215
摘要	Both surface and internal microstructures of a second-generation Ni-based single crystal (SX) superalloy were studied after creep and rejuvenation heat treatment (RHT). It is indicated that the microstructures, such as the dislocation network, the gamma phase and the gamma' phase, can be recovered to those after the standard heat treatment (SHT). It is found that RHT affected zone (RAZ) formed at the surface is composed of the gamma'-free layer, the transition layer and the recrystallization (RX), which are less than 20 mu m in depth totally. Such depth of the RAZ doesn't affect the properties of the superalloy. The morphology of gamma' phase at the RAZ is related to the composition of the elements. The average creep life after RHT is close to the average life after SHT. It is concluded that RHT could effectively repair SX parts and increase the total life of the sample after a damage by creep. (C) 2020 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
关键词	Superalloys Rejuvenation heat treatment Microstructure Creep property
资助者	National Science and Technology Major Project ; National Key R&D Program of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association, the Chinese Academy of Sciences ; State Key Lab of Advanced Metals and Materials Open Fund
DOI	10.1016/j.jmst.2020.05.032
收录类别	SCI
语种	英语
资助项目	National Science and Technology Major Project[2017-VI-0002-0072] ; National Key R&D Program of China[2017YFA0700704] ; National Key R&D Program of China[2018YFB110660] ; National Key R&D Program of China[2017YFB1103800] ; National Natural Science Foundation of China[51601192] ; National Natural Science Foundation of China[51671188] ; National Natural Science Foundation of China[51701210] ; National Natural Science Foundation of China[51771190] ; Youth Innovation Promotion Association, the Chinese Academy of Sciences ; State Key Lab of Advanced Metals and Materials Open Fund[2018-Z07]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000594138800023
出版者	JOURNAL MATER SCI TECHNOL
引用统计	被引频次：10[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/321006/158765
专题	中国科学院金属研究所
通讯作者	Wang, X. G.; Meng, J.
作者单位	1.Chinese Acad Sci, Inst Met Res, Superalloys Div, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Dept Mat Sci & Engn, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Tan, K. J.,Wang, X. G.,Liang, J. J.,et al. Effects of rejuvenation heat treatment on microstructure and creep property of a Ni-based single crystal superalloy[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2021,60:206-215.
APA	Tan, K. J.,Wang, X. G.,Liang, J. J.,Meng, J.,Zhou, Y. Z.,&Sun, X. F..(2021).Effects of rejuvenation heat treatment on microstructure and creep property of a Ni-based single crystal superalloy.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,60,206-215.
MLA	Tan, K. J.,et al."Effects of rejuvenation heat treatment on microstructure and creep property of a Ni-based single crystal superalloy".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 60(2021):206-215.