| Boride-induced dislocation channeling in a single crystal Ni-based superalloy | |
| Ge, H. L.1,2; Liu, J. D.3; Zheng, S. J.1; Zhou, Y. T.1; Jin, Q. Q.1; Shao, X. H.1; Zhang, B.1; Zhou, Y. Z.3; Ma, X. L.1,4 | |
| Corresponding Author | Zheng, S. J.(sjzheng@imr.ac.cn) ; Zhou, Y. Z.(yzzhou@imr.ac.cn) |
| 2019-01-15 | |
| Source Publication | MATERIALS LETTERS
 |
| ISSN | 0167-577X |
| Volume | 235Pages:232-235 |
| Abstract | Generally, 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. |
| Keyword | Ni-based superalloy Creep Boride Dislocation Interface |
| Funding Organization | Hundred Talents Project of Chinese Academy of Sciences ; Thousand Youth Talents Plan of China ; National Natural Science Foundation of China ; Shenyang National Laboratory for Materials Science |
| DOI | 10.1016/j.matlet.2018.10.039 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Hundred Talents Project of Chinese Academy of Sciences ; Thousand Youth Talents Plan of China ; National Natural Science Foundation of China[51401208] ; National Natural Science Foundation of China[51771201] ; Shenyang National Laboratory for Materials Science[2015RP18] ; Shenyang National Laboratory for Materials Science[2017RP17] |
| WOS Research Area | Materials Science ; Physics |
| WOS Subject | Materials Science, Multidisciplinary ; Physics, Applied |
| WOS ID | WOS:000448000700057 |
| Publisher | ELSEVIER SCIENCE BV |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/130036 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Zheng, S. J.; Zhou, Y. Z. |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Superalloys Div, Shenyang 110016, Liaoning, Peoples R China 4.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Gansu, Peoples R China |
| 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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