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Melting of primary carbides in a cobalt-base superalloy

文献类型：期刊论文

作者Gui, Weimin1,2; Zhang, Xiaotian1; Zhang, Hongyu2; Sun, Xiaofeng2; Zheng, Qi2
刊名JOURNAL OF ALLOYS AND COMPOUNDS
出版日期2019-05-30
卷号787页码:152-157
关键词Cobalt-base superalloy Eutectic carbide Local melting Re-solidification
ISSN号0925-8388
DOI10.1016/j.jallcom.2019.02.041
通讯作者Gui, Weimin(136901674@qq.com) ; Zheng, Qi(qzheng@imr.ac.cn)
英文摘要Melting of primary M7C3 and MC eutectic carbides in a cobalt-base superalloy has been investigated. It is found that the melting phenomenon of primary M7C3 and MC eutectic carbides occurs at approximately 1280 and 1320 degrees C, respectively, in particular the melting of MC eutectic carbide is firstly found. The melting process of primary M7C3 eutectic carbide is that M7C3 first transforms intoM(23)C(6) and then M23C6 melts rather than directly melts at or above 1280 degrees C, and the re-solidified structure is still M23C6 eutectic carbide, but its lamellar spacing becomes finer with respect to primary M7C3 eutectic carbide. Additionally, the higher the heat treatment temperature, the less the difference in the lamellar spacing of resolidified M23C6. On the other hand, after primary MC eutectic carbide melts, the finer Chinese script MC eutectic carbide associated with compositional change is produced upon re-solidification in comparison to the original as-cast structure. (C) 2019 Elsevier B.V. All rights reserved.
资助项目National Natural Science Foundation of China[51331005] ; National Natural Science Foundation of China[51601192] ; National Natural Science Foundation of China[51671188] ; National Natural Science Foundation of China[11332010] ; High Technology Research and Development Programof China[2014AA041701]
WOS研究方向Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:000462592500018
出版者ELSEVIER SCIENCE SA
资助机构National Natural Science Foundation of China ; High Technology Research and Development Programof China
源URL[http://ir.imr.ac.cn/handle/321006/132542]  
专题金属研究所_中国科学院金属研究所
通讯作者Gui, Weimin; Zheng, Qi
作者单位1.Shaanxi Fast Gear Co Ltd, 129 West Ave, Xian 710077, Shaanxi, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Superalloys Div, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式
GB/T 7714		 Gui, Weimin,Zhang, Xiaotian,Zhang, Hongyu,et al. Melting of primary carbides in a cobalt-base superalloy[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2019,787:152-157.
APA Gui, Weimin,Zhang, Xiaotian,Zhang, Hongyu,Sun, Xiaofeng,&Zheng, Qi.(2019).Melting of primary carbides in a cobalt-base superalloy.JOURNAL OF ALLOYS AND COMPOUNDS,787,152-157.
MLA Gui, Weimin,et al."Melting of primary carbides in a cobalt-base superalloy".JOURNAL OF ALLOYS AND COMPOUNDS 787(2019):152-157.

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来源：金属研究所

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