Selective microzone remelting to reduce and refine the coarse primary carbides in high-carbon alloy steels

doi:10.1016/j.jmatprotec.2024.118512

IMR OpenIR

	Selective microzone remelting to reduce and refine the coarse primary carbides in high-carbon alloy steels
	Hao, Weiye 1,2; Chen, Yun 1; Deng, Chaohui 1,2; Gong, Tongzhao 1; Fan, Weiqi 1,2; Guo, Yi 1; Chen, Xing-Qiu 1; Li, Dianzhong 1
通讯作者	Chen, Yun(chenyun@imr.ac.cn)
	2024-10-01
发表期刊	JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
ISSN	0924-0136
卷号	331 页码:14
摘要	The coarse primary carbides in high-carbon alloy steels can significantly impair their overall performance. Reducing and refining the primary carbides efficiently are always of great significance in material processing. Here, an innovative approach - the selective microzone remelting (SMR) method, is proposed to dramatically reduce and refine the coarse primary carbides. The method is achieved by utilizing an electric current and is facilitated with the substantial difference in electrical resistivity between carbides and the matrix phase. When a sample contains massive coarse primary carbides is subjected to an electric current, the high electrical resistivity of carbides leads to the selective remelting of local carbides before the sample reaches solidus temperature during heating while during cooling the big difference in electrical resistivity suppresses the carbides formation but promotes the austenite nucleation and growth. This mechanism has been validated through the successful treatment of M50 bearing steel, in which the large-sized blocky primary carbides were eliminated completely, leaving only small-sized eutectics with extremely thin lamellas. Besides, the microporosity in the as-cast sample has also been reduced significantly via SMR treatment. These studies demonstrated that the proposed SMR treatment can be a promising method to reduce and refine coarse precipitates formed during solidification in various alloys.
关键词	Primary carbide High -carbon alloy steels Microzone remelting Electric field
资助者	National Science and Technology Major Project ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences
DOI	10.1016/j.jmatprotec.2024.118512
收录类别	SCI
语种	英语
资助项目	National Science and Technology Major Project[J2019 -V1-0019-0134] ; National Natural Science Foundation of China[52031013] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDC04040202]
WOS研究方向	Engineering ; Materials Science
WOS类目	Engineering, Industrial ; Engineering, Manufacturing ; Materials Science, Multidisciplinary
WOS记录号	WOS:001267888800001
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：2[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/321006/188077
专题	中国科学院金属研究所
通讯作者	Chen, Yun
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Hao, Weiye,Chen, Yun,Deng, Chaohui,et al. Selective microzone remelting to reduce and refine the coarse primary carbides in high-carbon alloy steels[J]. JOURNAL OF MATERIALS PROCESSING TECHNOLOGY,2024,331:14.
APA	Hao, Weiye.,Chen, Yun.,Deng, Chaohui.,Gong, Tongzhao.,Fan, Weiqi.,...&Li, Dianzhong.(2024).Selective microzone remelting to reduce and refine the coarse primary carbides in high-carbon alloy steels.JOURNAL OF MATERIALS PROCESSING TECHNOLOGY,331,14.
MLA	Hao, Weiye,et al."Selective microzone remelting to reduce and refine the coarse primary carbides in high-carbon alloy steels".JOURNAL OF MATERIALS PROCESSING TECHNOLOGY 331(2024):14.