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Effect of solution heat treatment on creep properties of a nickel-based single crystal superalloy
Yunling, Du1,2; Yang, Yanhong1; Diao, Aimin3; Li, Yongmei1,2; Wang, Xinguang1; Zhou, Yizhou1; Li, Jinguo1; Sun, Xiaofeng1
Corresponding AuthorYang, Yanhong(yhyang@imr.ac.cn) ; Wang, Xinguang(xgwang11b@imr.ac.cn) ; Zhou, Yizhou(yzzhou@imr.ac.cn)
2021-11-01
Source PublicationJOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
ISSN2238-7854
Volume15Pages:4702-4713
AbstractA novel low-density nickel-based single-crystal superalloy was prepared and the effect of solution treatment on the creep deformation mechanism was systematically investigated. The results reveal that the creep life increases with the increase of solution treatment time, which can be ascribed to microstructural homogenization. However, when the solution treatment time exceeds a threshold limit, the relative proportion of undesirable defects significantly increases, which accelerates the failure and compromises the creep life. The homogenization of the composition leads to the precipitation of a more homogenized gamma' phase and, in turn, results in a more uniform and dense dislocation network, thus hindering the dislocation movement and improving the creep life. The undesirable defects may lead to the stress concentration and weaken the effect of the dislocation network, thus accelerating the creep process and the dislocation are more likely to shear into the gamma' phase. In general, the current study provides guidance for selecting a more reasonable solution treatment time to improve the creep strength. (C) 2021 The Authors. Published by Elsevier B.V.
KeywordNickel-based single crystal superalloys Microstructural evolution Creep behavior Solution heat-treatment
Funding OrganizationNational Natural Science Foundation of China ; National Science and Technology Major Project ; National Key R&D Pro-gram of China ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; Innovation Academy for Light-duty Gas Turbine, Chinese Academy of Sciences
DOI10.1016/j.jmrt.2021.10.078
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51701210] ; National Science and Technology Major Project[2017-VI-0003-0073] ; National Science and Technology Major Project[2017-VI-0002-0072] ; National Key R&D Pro-gram of China[2017YFA0700704] ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; Innovation Academy for Light-duty Gas Turbine, Chinese Academy of Sciences[CXYJJ20-MS-03]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000717666800005
PublisherELSEVIER
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/167427
Collection中国科学院金属研究所
Corresponding AuthorYang, Yanhong; Wang, Xinguang; Zhou, Yizhou
Affiliation1.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, 72 Wenhua Rd, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
3.Naval Univ Engn, Coll Naval Architecture & Ocean Engn, Wuhan 430000, Peoples R China
Recommended Citation
GB/T 7714
Yunling, Du,Yang, Yanhong,Diao, Aimin,et al. Effect of solution heat treatment on creep properties of a nickel-based single crystal superalloy[J]. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,2021,15:4702-4713.
APA Yunling, Du.,Yang, Yanhong.,Diao, Aimin.,Li, Yongmei.,Wang, Xinguang.,...&Sun, Xiaofeng.(2021).Effect of solution heat treatment on creep properties of a nickel-based single crystal superalloy.JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,15,4702-4713.
MLA Yunling, Du,et al."Effect of solution heat treatment on creep properties of a nickel-based single crystal superalloy".JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T 15(2021):4702-4713.
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