Transformation behavior of primary MC and M2C carbides in Cr4Mo4V steel

doi:10.1016/j.jallcom.2021.161755

IMR OpenIR

	Transformation behavior of primary MC and M2C carbides in Cr4Mo4V steel
	Liu, Weifeng 1,2,3; Guo, Yifeng 4; Cao, Yanfei 3; Wang, Jianqiang 1,2,3; Hou, Zhiyuan 5; Sun, Mingyue 1,3; Xu, Bin 1,3; Li, Dianzhong 3
通讯作者	Sun, Mingyue(mysun@imr.ac.cn) ; Li, Dianzhong(dzli@imr.ac.cn)
	2021-12-31
发表期刊	JOURNAL OF ALLOYS AND COMPOUNDS
ISSN	0925-8388
卷号	889 页码:10
摘要	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.
关键词	Cr4Mo4V steel Primary carbides Soaking treatment Decomposition Refinement
资助者	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
收录类别	SCI
语种	英语
资助项目	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:000706715400005
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：38[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/321006/166630
专题	中国科学院金属研究所
通讯作者	Sun, Mingyue; Li, Dianzhong
作者单位	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
推荐引用方式 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.