Effect of Ce Addition on Inclusions and Primary Carbide Network in AISI 440C Bearing Steel

doi:10.1002/srin.202300614

IMR OpenIR

	Effect of Ce Addition on Inclusions and Primary Carbide Network in AISI 440C Bearing Steel
	Ma, Shuai 1; Li, Yang 1; Jiang, Zhouhua 1; Sun, Meng 1; Niedeng, Yunfei 1; Yang, Rui 1; Wang, Yucheng 1; Li, Tianci 1; Chen, Changyong 1; Liu, Hang 2
通讯作者	Li, Yang(liy@smm.neu.edu.cn) ; Jiang, Zhouhua(jiangzh@smm.neu.edu.cn)
	2024-01-22
发表期刊	STEEL RESEARCH INTERNATIONAL
ISSN	1611-3683
页码	11
摘要	The effects of Ce on inclusions and the primary carbide network of AISI 440C bearing steel are experimentally and theoretically investigated. Adding Ce improves the cleanliness and refinement of primary carbide networks in AISI 440C bearing steel ingots. The addition of Ce substantially reduces the contents of total oxygen (T.O) and S in the steel, and MnS and Al2O3 inclusions are modified into finer Ce-containing inclusions (Ce2O2S and Ce2O3). When Ce is added, the average equivalent diameter of the inclusions decreases from 1.82 to 1.33 mu m, and the number of inclusions per unit area (mm2) increases from 59 to 105. Moreover, the addition of Ce reduces the secondary dendrite spacing from 33.82 to 24.2 mu m, and the proportion of primary carbide is reduced from 22.08% to 11.17%. The 2D lattice disregistry theory confirms that Ce2O2S and Ce2O3 inclusions can be utilized as effective heterogeneous nucleation cores for gamma-Fe, thus refining the solidification microstructure and also the primary carbide. This study provides theoretical guidelines for the fabrication of domestic AISI 440C bearing steel ingots. The effect of Ce content on the inclusion and solidification structure of bearing steel AISI 440C is investigated. It is found that appropriate Ce can modify the inclusions into Ce-containing inclusions in AISI 440C, reduce the precipitation of primary carbide network in the steel, and refine the solidification structure of the as-cast steel.image (c) 2024 WILEY-VCH GmbH
关键词	AISI 440C bearing steels cerium inclusions primary carbides solidification structures
资助者	National Natural Science Foundation of China
DOI	10.1002/srin.202300614
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China ; [52074075]
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001153466300001
出版者	WILEY-V C H VERLAG GMBH
引用统计	被引频次：1[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/321006/184017
专题	中国科学院金属研究所
通讯作者	Li, Yang; Jiang, Zhouhua
作者单位	1.Northeastern Univ, Sch Met, 3-11 Wenhua Rd, Shenyang 110819, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Ma, Shuai,Li, Yang,Jiang, Zhouhua,et al. Effect of Ce Addition on Inclusions and Primary Carbide Network in AISI 440C Bearing Steel[J]. STEEL RESEARCH INTERNATIONAL,2024:11.
APA	Ma, Shuai.,Li, Yang.,Jiang, Zhouhua.,Sun, Meng.,Niedeng, Yunfei.,...&Liu, Hang.(2024).Effect of Ce Addition on Inclusions and Primary Carbide Network in AISI 440C Bearing Steel.STEEL RESEARCH INTERNATIONAL,11.
MLA	Ma, Shuai,et al."Effect of Ce Addition on Inclusions and Primary Carbide Network in AISI 440C Bearing Steel".STEEL RESEARCH INTERNATIONAL (2024):11.