Effects of Cerium Addition on Solidification Structure and Mechanical Properties of Cr30Mo2 Super Ferritic Stainless Steel

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	Effects of Cerium Addition on Solidification Structure and Mechanical Properties of Cr30Mo2 Super Ferritic Stainless Steel
	Duan Chaohui 1,2; Ning Likui 1; Zhu Yangyang 1,2; Tan Zheng 1; Liu Enze 1; Tong Jian 1; Li Haiying 1; Wang Zengrui 3; Zheng Zhi 1
刊名	RARE METAL MATERIALS AND ENGINEERING
	2021-09-01
卷号	50 期号:9 页码:3288-3294
关键词	Cr30Mo2 super ferrite stainless steel casting Ce grain size oxide inclusion mechanical properties
ISSN号	1002-185X
通讯作者	Ning Likui(lkning@imr.ac.cn)
英文摘要	The effect of different Ce contents on the microstructure and mechanical properties of Cr30Mo2 super ferrite stainless steel was studied. The results show that the types of inclusion in the Cr30Mo2 super ferrite stainless steel are mainly Cr-rich oxides and Al-Si composite oxides with irregular shapes, which are converted into Ce2O3 after Ce addition and spherical composite inclusions rich in Al and Si in the core and Al and Ce in the outer layer, with small size, round shape and the significantly reduced inclusion content. Ce2O3 can be used as heterogeneous nucleation core, which can increase casting nucleation rate and reduce grain size. However, excessive Ce content results in abnormal increase of grain size. Trace Ce can significantly improve the plasticity of Cr30Mo2 stainless steel at room temperature. Adding 0.07wt% Ce can increase the elongation after fracture of Cr30Mo2 super ferritic stainless steel castings from 1.5% to about 20%.
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	NORTHWEST INST NONFERROUS METAL RESEARCH
WOS记录号	WOS:000708582000034
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/167217]
专题	金属研究所_中国科学院金属研究所
通讯作者	Ning Likui
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, Shenyang 110016, Peoples R China 3.Shenyang Foundry Res Inst Co Ltd, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Duan Chaohui,Ning Likui,Zhu Yangyang,et al. Effects of Cerium Addition on Solidification Structure and Mechanical Properties of Cr30Mo2 Super Ferritic Stainless Steel[J]. RARE METAL MATERIALS AND ENGINEERING,2021,50(9):3288-3294.
APA	Duan Chaohui.,Ning Likui.,Zhu Yangyang.,Tan Zheng.,Liu Enze.,...&Zheng Zhi.(2021).Effects of Cerium Addition on Solidification Structure and Mechanical Properties of Cr30Mo2 Super Ferritic Stainless Steel.RARE METAL MATERIALS AND ENGINEERING,50(9),3288-3294.
MLA	Duan Chaohui,et al."Effects of Cerium Addition on Solidification Structure and Mechanical Properties of Cr30Mo2 Super Ferritic Stainless Steel".RARE METAL MATERIALS AND ENGINEERING 50.9(2021):3288-3294.