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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
Corresponding AuthorWang, X. G.(xgwang11b@imr.ac.cn) ; Meng, J.(jmeng@imr.ac.cn)
2021-01-10
Source PublicationJOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN1005-0302
Volume60Pages:206-215
AbstractBoth 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.
KeywordSuperalloys Rejuvenation heat treatment Microstructure Creep property
Funding OrganizationNational 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
DOI10.1016/j.jmst.2020.05.032
Indexed BySCI
Language英语
Funding ProjectNational 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 Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000594138800023
PublisherJOURNAL MATER SCI TECHNOL
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/158765
Collection中国科学院金属研究所
Corresponding AuthorWang, X. G.; Meng, J.
Affiliation1.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
Recommended Citation
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.
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