Effects of rare earth elements on inclusions and impact toughness of high-carbon chromium bearing steel

doi:10.1016/j.jmst.2019.01.015

IMR OpenIR

	Effects of rare earth elements on inclusions and impact toughness of high-carbon chromium bearing steel
	Yang, Chaoyun 1,2; Luan, Yikun 1; Li, Dianzhong 1; Li, Yiyi 1
通讯作者	Luan, Yikun(ykluan@imr.ac.cn)
	2019-07-01
发表期刊	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN	1005-0302
卷号	35 期号:7 页码:1298-1308
摘要	High-carbon chromium bearing steels with different rare earth (RE) contents were prepared to investigate the effects of RE on inclusions and impact toughness by different techniques. The results showed that RE addition could modify irregular Al2O3 and MnS into regular RE inclusions. With the increase of RE content, the reaction sequence of RE and potential inclusion forming elements should be O, S, As, P and C successively. RE inclusions containing C might precipitate in molten steel and solid state, but the precipitation temperature was significantly higher than that of carbides in high-carbon chromium bearing steel. For experimental bearing steels, the volume fraction of inclusions increased steadily with the increase of RE content, but smaller and more dispersed inclusions could be obtained by 0.018% RE content compared with bearing steel without RE, whereas the continuous increase of RE content led to an increasing trend for inclusion size and a gradual deterioration for inclusion distribution. RE addition could improve the transverse impact toughness and isotropy of bearing steel, and for modified high-carbon chromium bearing steel by RE alloying, the increase of RE content continuously increased both transverse and longitudinal impact toughness until excessive RE addition. (C) 2019 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
关键词	High-carbon chromium bearing steel Rare earth Inclusions Impact toughness
资助者	National Natural Science Foundation of China ; National Key Research and Development Program
DOI	10.1016/j.jmst.2019.01.015
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[U1508215] ; National Natural Science Foundation of China[U1708252] ; National Key Research and Development Program[2016YFB0300401]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000466369600011
出版者	JOURNAL MATER SCI TECHNOL
引用统计	被引频次：160[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/321006/133628
专题	中国科学院金属研究所
通讯作者	Luan, Yikun
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Yang, Chaoyun,Luan, Yikun,Li, Dianzhong,et al. Effects of rare earth elements on inclusions and impact toughness of high-carbon chromium bearing steel[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2019,35(7):1298-1308.
APA	Yang, Chaoyun,Luan, Yikun,Li, Dianzhong,&Li, Yiyi.(2019).Effects of rare earth elements on inclusions and impact toughness of high-carbon chromium bearing steel.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,35(7),1298-1308.
MLA	Yang, Chaoyun,et al."Effects of rare earth elements on inclusions and impact toughness of high-carbon chromium bearing steel".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 35.7(2019):1298-1308.