IMR OpenIR
Role of interfacial dislocation networks during secondary creep at elevated temperatures in a single crystal Ni-based superalloy
Li, Yawei1,2; Wang, Li1; He, Yufeng1,2; Zheng, Wei1; Lou, Langhong1; Zhang, Jian1
Corresponding AuthorWang, Li(wangli@imr.ac.cn)
2022-08-01
Source PublicationSCRIPTA MATERIALIA
ISSN1359-6462
Volume217Pages:5
AbstractGenerally, the denser dislocation networks in the gamma/gamma' interface should result in a lower minimum creep rate in single crystal Ni-based superalloy at high temperatures. However, in this study, with rising temperature from 1100 degrees C to 1150 degrees C, the spacing of dislocation networks decreases almost linearly, while the minimum creep rate increases nonlinearly. This is attributed to the enhanced dislocation-climb in the gamma/gamma' interface and gamma'-cutting by a<010> superdislocations. Further, dislocation networks can act as a superdislocation source during the secondary creep stage besides the well-known strengthening effect.
KeywordSuperalloy Creep Interfacial dislocation networks Scanning transmission electron microscopy Scanning electron microscopy
Funding OrganizationNational Natural Science Foundation of China
DOI10.1016/j.scriptamat.2022.114769
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51871210] ; National Natural Science Foundation of China[51771204]
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000805932000003
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/174787
Collection中国科学院金属研究所
Corresponding AuthorWang, Li
Affiliation1.Chinese Acad Sci, Inst Met Res, Shi changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Li, Yawei,Wang, Li,He, Yufeng,et al. Role of interfacial dislocation networks during secondary creep at elevated temperatures in a single crystal Ni-based superalloy[J]. SCRIPTA MATERIALIA,2022,217:5.
APA Li, Yawei,Wang, Li,He, Yufeng,Zheng, Wei,Lou, Langhong,&Zhang, Jian.(2022).Role of interfacial dislocation networks during secondary creep at elevated temperatures in a single crystal Ni-based superalloy.SCRIPTA MATERIALIA,217,5.
MLA Li, Yawei,et al."Role of interfacial dislocation networks during secondary creep at elevated temperatures in a single crystal Ni-based superalloy".SCRIPTA MATERIALIA 217(2022):5.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Li, Yawei]'s Articles
[Wang, Li]'s Articles
[He, Yufeng]'s Articles
Baidu academic
Similar articles in Baidu academic
[Li, Yawei]'s Articles
[Wang, Li]'s Articles
[He, Yufeng]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Li, Yawei]'s Articles
[Wang, Li]'s Articles
[He, Yufeng]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.