Macro and Micro Segregations and Prediction of Carbide Equivalent Size in Vacuum Arc Remelting of M50 Steel <i>via</i> Simulations and Experiments

doi:10.1007/s11661-024-07305-y

IMR OpenIR

	*Macro and Micro Segregations and Prediction of Carbide Equivalent Size in Vacuum Arc Remelting of M50 Steel via* Simulations and Experiments**
	Guan, Jian 1,2; Liu, Dong-Rong 1; Cao, Yanfei 2; Liu, Hongwei 2; Fu, Paixian 2; Liu, Hanghang 2; Sun, Chen 2; Miao, Yangyang 2; Li, Dianzhong 2
通讯作者	Liu, Dong-Rong(dongrongliu@hrbust.edu.cn) ; Cao, Yanfei(yfcao10s@imr.ac.cn)
	2024-02-10
发表期刊	METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
ISSN	1073-5623
页码	17
摘要	Macrosegregation and coarse primary carbides caused by microsegregation are typical solidification defects during Vacuum Arc Remelting (VAR) which greatly limit the mechanical properties of M50-bearing steel components. A solid-liquid Eulerian two-phase model that describes solidification behaviors at both macro and micro scales is developed to predict macrosegregation of M50 ingots under a complex multi-physics condition. A good match is observed between the simulated results and experimental data. The segregation pattern of carbon is predicted with and without natural convection. Compared with thermal-solutal buoyancy, the Lorentz force is stronger and regarded as the main driving force for macrosegregation formation. The flows generated by thermal-solutal buoyancy and Lorentz force are in opposite directions. The natural convection flowing downward along solidification front leads to more serious positive segregation at the center of ingot. The uniformity of concentration distribution is improved with the increase of ingot diameter. The main reason is that the increase of diameter leads to the decrease of current density, and further decreases the Lorentz force, thus weakening the fluid flow. For the first time, an analytical formula of the equivalent size of primary carbides in M50 steel is established. It is found that the size of carbides in large-diameter industrial VAR-ingot is larger. The present work provides new insights for co-operative controlling the macro and micro segregations and the size of carbides in VAR ingots. The optimal ingot size with a diameter of 280 mm is found.
资助者	National Natural Science Foundation ; National Key Research and Development Program ; Strategic Pilot Science and Technology Project
DOI	10.1007/s11661-024-07305-y
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation[52031013] ; National Key Research and Development Program[2018YFA0702900] ; Strategic Pilot Science and Technology Project[XDC04000000]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001160463400002
出版者	SPRINGER
引用统计	被引频次：3[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/321006/184100
专题	中国科学院金属研究所
通讯作者	Liu, Dong-Rong; Cao, Yanfei
作者单位	1.Harbin Univ Sci & Technol, Sch Mat Sci & Chem Engn, 4 Linyuan Rd, Harbin 150040, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Guan, Jian,Liu, Dong-Rong,Cao, Yanfei,et al. Macro and Micro Segregations and Prediction of Carbide Equivalent Size in Vacuum Arc Remelting of M50 Steel via Simulations and Experiments[J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,2024:17.
APA	Guan, Jian.,Liu, Dong-Rong.,Cao, Yanfei.,Liu, Hongwei.,Fu, Paixian.,...&Li, Dianzhong.(2024).Macro and Micro Segregations and Prediction of Carbide Equivalent Size in Vacuum Arc Remelting of M50 Steel via Simulations and Experiments.METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,17.
MLA	Guan, Jian,et al."Macro and Micro Segregations and Prediction of Carbide Equivalent Size in Vacuum Arc Remelting of M50 Steel via Simulations and Experiments".METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE (2024):17.