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Facilitating effect of interfacial grooves on the rafting of nickel-based single crystal superalloy at high temperature
Qi, Dongqing1,2; Wang, Li3; Zhao, Peng2,4; Qi, Lu2,4; He, Suyun2,4; Qi, Yang1; Ye, Hengqiang1,2; Zhang, Jian3; Du, Kui2
Corresponding AuthorDu, Kui(kuidu@imr.ac.cn)
2019-07-01
Source PublicationSCRIPTA MATERIALIA
ISSN1359-6462
Volume167Pages:71-75
AbstractInterfacial grooving induced by dislocation stress takes place at gamma/gamma' interfaces during creep and aging of a third-generation nickel-based single crystal superalloy at 1120 degrees C. At the tip of grooves, gamma' phase is directly measured under compressive stress of interfacial dislocations, which likely drives the gamma'-forming elements out. The enrichment of Re and Co elements are detected in the tip. Meanwhile, gamma' precipitates coarsen much faster when more grooves form at the interfaces along the coarsening direction. This suggests that interfacial grooves facilitate the rafting of gamma' precipitates, especially under the creep stress. (C) 2019 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
KeywordSuperalloy Interfaces Grooves Creep Aging
Funding OrganizationNational Natural Science Foundation of China ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences
DOI10.1016/j.scriptamat.2019.04.001
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51771203] ; National Natural Science Foundation of China[51871210] ; National Natural Science Foundation of China[51671196] ; National Natural Science Foundation of China[51390473] ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences[QYZDJ-SSW-JSC024]
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000468720000015
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/133561
Collection中国科学院金属研究所
Corresponding AuthorDu, Kui
Affiliation1.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Liaoning, Peoples R China
2.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
3.Chinese Acad Sci, Inst Met Res, Superalloys Div, Shenyang 110016, Liaoning, Peoples R China
4.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China
Recommended Citation
GB/T 7714
Qi, Dongqing,Wang, Li,Zhao, Peng,et al. Facilitating effect of interfacial grooves on the rafting of nickel-based single crystal superalloy at high temperature[J]. SCRIPTA MATERIALIA,2019,167:71-75.
APA Qi, Dongqing.,Wang, Li.,Zhao, Peng.,Qi, Lu.,He, Suyun.,...&Du, Kui.(2019).Facilitating effect of interfacial grooves on the rafting of nickel-based single crystal superalloy at high temperature.SCRIPTA MATERIALIA,167,71-75.
MLA Qi, Dongqing,et al."Facilitating effect of interfacial grooves on the rafting of nickel-based single crystal superalloy at high temperature".SCRIPTA MATERIALIA 167(2019):71-75.
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