| Transformation behavior of primary MC and M2C carbides in Cr4Mo4V steel | |
| Liu, Weifeng1,2,3; Guo, Yifeng4; Cao, Yanfei3; Wang, Jianqiang1,2,3; Hou, Zhiyuan5; Sun, Mingyue1,3; Xu, Bin1,3; Li, Dianzhong3 | |
| Corresponding Author | Sun, Mingyue(mysun@imr.ac.cn) ; Li, Dianzhong(dzli@imr.ac.cn) |
| 2021-12-31 | |
| Source Publication | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| ISSN | 0925-8388 |
| Volume | 889Pages:10 |
| Abstract | The transformation of primary MC and M2C carbides, during high-temperature treatment, was investigated by quasi in-situ observation of Cr4Mo4V steel. It was found that the V-rich rod-like MC carbides have great thermal stability, and disintegrating and coarsening are their dominant transformation mechanisms. The M2C carbides mainly possess rod-like (M2C-R) and lamellar (M2C-L) morphologies. The M2C-R carbides are Mo-enriched, and their transformation follows the paths: the separate precipitation of MC and M2C-R + gamma -> MC + M6C. The V-and Fe-rich MC carbides nucleates randomly in the interior of M2C-R before the nucleation of Mo-and Fe-rich M6C carbides, which is controlled by the diffusion of V. Soaking for longer durations can cause spheroidization and coarsening of the MC carbides, along with the dissolution of M6C carbides. The evolution of Fe-and Mo-rich M2C-L carbides consists of two stages: the partial dissolution of M2C-L into the matrix and the transformation of M2C-L -> MC + gamma . These novel findings contribute towards the understanding of how primary carbides evolve during heat treatment and provide a potential method for carbides refinement in Cr4Mo4V steel. (C) 2021 Elsevier B.V. All rights reserved. |
| Keyword | Cr4Mo4V steel Primary carbides Soaking treatment Decomposition Refinement |
| Funding Organization | National Key Research and Development Program ; National Natural Science Foundation of China ; National Science and Technology Major Project of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; LingChuang Research Project of China National Nuclear Corporation Program of CAS Interdisciplinary Innovation Team ; Youth Innovation Promotion Association, CAS |
| DOI | 10.1016/j.jallcom.2021.161755 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Key Research and Development Program[2018YFA0702900] ; National Natural Science Foundation of China[51774265] ; National Natural Science Foundation of China[51701225] ; National Science and Technology Major Project of China[2019ZX06004010] ; National Science and Technology Major Project of China[2017-VII-008-0101] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDC04000000] ; LingChuang Research Project of China National Nuclear Corporation Program of CAS Interdisciplinary Innovation Team ; Youth Innovation Promotion Association, CAS |
| WOS Research Area | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000706715400005 |
| Publisher | ELSEVIER SCIENCE SA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/166630 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Sun, Mingyue; Li, Dianzhong |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Coll Mat Sci & Engn, Hefei 230026, Peoples R China 3.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China 4.Shanghai Univ, State Key Lab Adv Special Steel, 333 Nanchen Rd, Shanghai 200444, Peoples R China 5.Ocean Univ China, Sch Mat Sci & Engn, Qingdao 266100, Peoples R China |
| Recommended Citation GB/T 7714 | Liu, Weifeng,Guo, Yifeng,Cao, Yanfei,et al. Transformation behavior of primary MC and M2C carbides in Cr4Mo4V steel[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2021,889:10. |
| APA | Liu, Weifeng.,Guo, Yifeng.,Cao, Yanfei.,Wang, Jianqiang.,Hou, Zhiyuan.,...&Li, Dianzhong.(2021).Transformation behavior of primary MC and M2C carbides in Cr4Mo4V steel.JOURNAL OF ALLOYS AND COMPOUNDS,889,10. |
| MLA | Liu, Weifeng,et al."Transformation behavior of primary MC and M2C carbides in Cr4Mo4V steel".JOURNAL OF ALLOYS AND COMPOUNDS 889(2021):10. |
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