Chemical states of ppm cerium in steel by ToF-SIMS analysis

doi:10.1002/sia.6739

IMR OpenIR

	Chemical states of ppm cerium in steel by ToF-SIMS analysis
	Dai, Chunli; Guo, Fei; Wang, Pei; Li, Dianzhong; Zhang, Lei
通讯作者	Zhang, Lei(lzhang@imr.ac.cn)
	2019-12-17
发表期刊	SURFACE AND INTERFACE ANALYSIS
ISSN	0142-2421
卷号	52 期号:5 页码:5
摘要	Time-of-flight secondary ion mass spectrometry (ToF-SIMS) was employed for an analysis of the rare earth element Ce in pure iron and steel. Secondary ion images showed that the amount of the segregation of Ce and its oxides was much less as the concentration of Ce decreased to about 11 ppm in the pure iron. In terms of depth profiling from the surface to the matrix, variation of the CeO+/Ce+ ratio in a Ce oxides sample and a pure Ce sample exhibited difference between oxidized state and metallic state. It was demonstrated that metallic Ce was presented when the ratio of CeO+/Ce+ decreased to approximately 2 and even smaller. Oxygen content with concentration of tens of ppm may influence the ratio obviously. Such ToF-SIMS analysis was also feasible to discern the states of cerium in a Q345E steel with concentration in ppm level.
关键词	chemical states oxides rare earth solid solution steel ToF-SIMS
资助者	Innovation Promotion Association, Chinese Academy of Sciences ; National Natural Science Foundation
DOI	10.1002/sia.6739
收录类别	SCI
语种	英语
资助项目	Innovation Promotion Association, Chinese Academy of Sciences[2013126] ; National Natural Science Foundation[U1708252]
WOS研究方向	Chemistry
WOS类目	Chemistry, Physical
WOS记录号	WOS:000503023600001
出版者	WILEY
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/321006/136430
专题	中国科学院金属研究所
通讯作者	Zhang, Lei
作者单位	Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Dai, Chunli,Guo, Fei,Wang, Pei,et al. Chemical states of ppm cerium in steel by ToF-SIMS analysis[J]. SURFACE AND INTERFACE ANALYSIS,2019,52(5):5.
APA	Dai, Chunli,Guo, Fei,Wang, Pei,Li, Dianzhong,&Zhang, Lei.(2019).Chemical states of ppm cerium in steel by ToF-SIMS analysis.SURFACE AND INTERFACE ANALYSIS,52(5),5.
MLA	Dai, Chunli,et al."Chemical states of ppm cerium in steel by ToF-SIMS analysis".SURFACE AND INTERFACE ANALYSIS 52.5(2019):5.