Melting of primary carbides in a cobalt-base superalloy

doi:10.1016/j.jallcom.2019.02.041

IMR OpenIR

	Melting of primary carbides in a cobalt-base superalloy
	Gui, Weimin 1,2; Zhang, Xiaotian 1; Zhang, Hongyu 2; Sun, Xiaofeng 2; Zheng, Qi 2
通讯作者	Gui, Weimin(136901674@qq.com) ; Zheng, Qi(qzheng@imr.ac.cn)
	2019-05-30
发表期刊	JOURNAL OF ALLOYS AND COMPOUNDS
ISSN	0925-8388
卷号	787 页码:152-157
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.
关键词	Cobalt-base superalloy Eutectic carbide Local melting Re-solidification
资助者	National Natural Science Foundation of China ; High Technology Research and Development Programof China
DOI	10.1016/j.jallcom.2019.02.041
收录类别	SCI
语种	英语
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
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000462592500018
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：20[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/132543
专题	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.