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Melting of primary carbides in a cobalt-base superalloy
Gui, Weimin1,2; Zhang, Xiaotian1; Zhang, Hongyu2; Sun, Xiaofeng2; Zheng, Qi2
Corresponding AuthorGui, Weimin(136901674@qq.com) ; Zheng, Qi(qzheng@imr.ac.cn)
2019-05-30
Source PublicationJOURNAL OF ALLOYS AND COMPOUNDS
ISSN0925-8388
Volume787Pages:152-157
AbstractMelting 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.
KeywordCobalt-base superalloy Eutectic carbide Local melting Re-solidification
Funding OrganizationNational Natural Science Foundation of China ; High Technology Research and Development Programof China
DOI10.1016/j.jallcom.2019.02.041
Indexed BySCI
Language英语
Funding ProjectNational 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 Research AreaChemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000462592500018
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/132543
Collection中国科学院金属研究所
Corresponding AuthorGui, Weimin; Zheng, Qi
Affiliation1.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
Recommended Citation
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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