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Melting of primary carbides in a cobalt-base superalloy
Gui, Weimin; Zhang, Xiaotian; Zhang, Hongyu; Sun, Xiaofeng; Zheng, Qi
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
Indexed BySCI
Language英语
WOS IDWOS:000462592500018
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/81072
Collection中国科学院金属研究所
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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