Dissolution of Primary Carbides and Formation and Healing of Kirkendall Voids in Bearing Steel under Pulsed Electric Current

doi:10.1002/srin.202400400

IMR OpenIR

	Dissolution of Primary Carbides and Formation and Healing of Kirkendall Voids in Bearing Steel under Pulsed Electric Current
	Wang, Zhongxue 1,2; Zhang, Tao 1; Zhou, Mengcheng 3; Zhang, Mingkui 1; Ma, Jinchao 4,5; Zhang, Xinfang 1,3; Guo, Jingdong 4; Liu, Jide 6; Zhou, Yizhou 6
通讯作者	Zhang, Xinfang(xfzhang@alum.imr.ac.cn) ; Guo, Jingdong(jdguo@imr.ac.cn)
	2024-10-16
发表期刊	STEEL RESEARCH INTERNATIONAL
ISSN	1611-3683
页码	16
摘要	The alloying elements in 8Cr4Mo4V bearing steel tend to form large primary carbides with carbon, which not only causes element segregation but also becomes the primary source of fatigue crack initiation, thereby decreasing the material's usability and machinability. Owing to the excellent thermal stability of primary carbides, traditional homogenization annealing requires high temperatures, which is both time- and energy-intensive. Excessively high heat treatment temperatures can also result in "overburning" of the sample. Herein, primary carbides are rapidly dissolved at low temperatures using pulsed electric current treatment. The additional free energy introduced by the pulsed electric current lowers the thermodynamic barrier for carbide dissolution. During the second-phase dissolution process, the unbalanced diffusion of elements may cause the formation of Kirkendall voids. Due to the difference in electrical conductivity between the voids and the matrix, the pulsed electric current generates thermal compressive stress on the voids, promoting rapid atom migration to these voids and accelerating their healing. This pulse-current treatment technology offers a novel method for the rapid dissolution of carbides in alloys at low temperatures and for the rapid healing of related voids. Primary carbides are rapidly dissolved at low temperatures using pulsed electric current and the unbalanced diffusion of elements may cause the formation of Kirkendall voids. Pulsed electric current promotes rapid atom migration to voids and accelerates healing. It is a novel method for the rapid dissolution of carbides at low temperatures and for the rapid healing of related voids.image (c) 2024 WILEY-VCH GmbH
关键词	dissolution formation and healing Kirkendall voids primary carbides pulsed electric currents
资助者	Key R&D Program of Shandong Province, China ; National Natural Science Foundation of China ; National Key R&D Program of China ; Beijing Municipal Natural Science Foundation ; Fundamental Research Funds for the Central Universities
DOI	10.1002/srin.202400400
收录类别	SCI
语种	英语
资助项目	Key R&D Program of Shandong Province, China ; National Natural Science Foundation of China[U21B2082] ; National Key R&D Program of China[2023YFB3709903] ; Beijing Municipal Natural Science Foundation[2222065] ; Fundamental Research Funds for the Central Universities[FRF-TP-22-02C2] ; [2023CXGC010406]
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001332242100001
出版者	WILEY-V C H VERLAG GMBH
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/190586
专题	中国科学院金属研究所
通讯作者	Zhang, Xinfang; Guo, Jingdong
作者单位	1.Univ Sci & Technol Beijing, Sch Met & Ecol Engn, Beijing 100083, Peoples R China 2.Shandong Iron & Steel Grp Co Ltd, Res Inst, Jinan 271105, Peoples R China 3.Inner Mongolia Univ Sci & Technol, Sch Rare Earth Ind, Key Lab Green Extract & Efficient Utilizat Light R, Minist Educ, Baotou 014010, Peoples R China 4.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Met Res Inst, Shenyang 110016, Peoples R China 5.Liaoning Univ, Coll Chem, Shenyang 110036, Peoples R China 6.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Wang, Zhongxue,Zhang, Tao,Zhou, Mengcheng,et al. Dissolution of Primary Carbides and Formation and Healing of Kirkendall Voids in Bearing Steel under Pulsed Electric Current[J]. STEEL RESEARCH INTERNATIONAL,2024:16.
APA	Wang, Zhongxue.,Zhang, Tao.,Zhou, Mengcheng.,Zhang, Mingkui.,Ma, Jinchao.,...&Zhou, Yizhou.(2024).Dissolution of Primary Carbides and Formation and Healing of Kirkendall Voids in Bearing Steel under Pulsed Electric Current.STEEL RESEARCH INTERNATIONAL,16.
MLA	Wang, Zhongxue,et al."Dissolution of Primary Carbides and Formation and Healing of Kirkendall Voids in Bearing Steel under Pulsed Electric Current".STEEL RESEARCH INTERNATIONAL (2024):16.