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Boride-induced dislocation channeling in a single crystal Ni-based superalloy
Ge, H. L.; Liu, J. D.; Zheng, S. J.; Zhou, Y. T.; Jin, Q. Q.; Shao, X. H.; Zhang, B.; Zhou, Y. Z.; Ma, X. L.
2019-01-15
Source PublicationMATERIALS LETTERS
ISSN0167-577X
Volume235Pages:232-235
AbstractGenerally, minor elements such as carbon and boron are added in superalloys to strengthen grain boundaries. However, effects of carbon and boron on single crystal superalloys remain disputed. Here we demonstrate that M23B6 (where M is mixture of W, Mo, Cr and Ni) can induce dislocation channeling in a Ni-based single crystal superalloy. The M23B6 has a cube-on-cube orientation relationship with the matrix, forming a majority of {1 1 1} plane interfaces. Furthermore, the atomic stepped {1 1 1} interface could facilitate dislocation nucleation. Dislocations emitted from the interface glide forward and pile-up in the channel, resulting in strain localization and creep micro-crack initiation. (C) 2018 Elsevier B.V. All rights reserved.
KeywordNi-based superalloy Creep Boride Dislocation Interface
Indexed BySCI
Language英语
WOS IDWOS:000448000700057
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/81453
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Ge, H. L.,Liu, J. D.,Zheng, S. J.,et al. Boride-induced dislocation channeling in a single crystal Ni-based superalloy[J]. MATERIALS LETTERS,2019,235:232-235.
APA Ge, H. L..,Liu, J. D..,Zheng, S. J..,Zhou, Y. T..,Jin, Q. Q..,...&Ma, X. L..(2019).Boride-induced dislocation channeling in a single crystal Ni-based superalloy.MATERIALS LETTERS,235,232-235.
MLA Ge, H. L.,et al."Boride-induced dislocation channeling in a single crystal Ni-based superalloy".MATERIALS LETTERS 235(2019):232-235.
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