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Effects of Cerium Addition on Solidification Structure and Mechanical Properties of Cr30Mo2 Super Ferritic Stainless Steel
Duan Chaohui1,2; Ning Likui1; Zhu Yangyang1,2; Tan Zheng1; Liu Enze1; Tong Jian1; Li Haiying1; Wang Zengrui3; Zheng Zhi1
Corresponding AuthorNing Likui(lkning@imr.ac.cn)
2021-09-01
Source PublicationRARE METAL MATERIALS AND ENGINEERING
ISSN1002-185X
Volume50Issue:9Pages:3288-3294
AbstractThe 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%.
KeywordCr30Mo2 super ferrite stainless steel casting Ce grain size oxide inclusion mechanical properties
Indexed BySCI
Language英语
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000708582000034
PublisherNORTHWEST INST NONFERROUS METAL RESEARCH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/167218
Collection中国科学院金属研究所
Corresponding AuthorNing Likui
Affiliation1.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
Recommended Citation
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.
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