Redistribution of C and N Atoms in High Nitrogen Martensitic Stainless Steel During Cryogenic Treatment

doi:10.1007/s40195-021-01265-7

IMR OpenIR

	Redistribution of C and N Atoms in High Nitrogen Martensitic Stainless Steel During Cryogenic Treatment
	Cai, Xin 1,2; Hu, Xiaoqiang 2; Zheng, Leigang 2; Li, Dianzhong 2
通讯作者	Hu, Xiaoqiang(xqhu@imr.ac.cn)
	2021-06-15
发表期刊	ACTA METALLURGICA SINICA-ENGLISH LETTERS
ISSN	1006-7191
页码	5
摘要	The redistribution of C and N atoms during cryogenic treatment is crucial for the microstructure evolution and properties of high nitrogen martensitic steel. Here, the distinct redistribution behavior of C and N atoms in a martensitic stainless steel with 0.3 wt% C and 0.5 wt% N after cryogenic treatment were investigated by the atom probe tomography. Carbon clusters begin to form after cryogenic treatment at - 60 degrees C and gradually increase with the decrease of cryogenic treatment temperature. While Mo-N and Cr-N pairs are homogeneously distributed in the matrix even after cryogenic treatment at -120 degrees C, and then form enrichment phenomenon when the cryogenic temperature is deeply lowered to - 190 degrees C. It is found that the distinct redistributions of C and N atoms are associated with the different interaction energy between substitutional atoms and them. The stronger interaction between Cr, Mo atoms and N delays the segregation of N during the cryogenic treatment. Finally, the mechanical properties results confirmed that the deep lower cryogenic treatment is a promising method to improve the hardness and strength in the high nitrogen martensitic stainless steel.
关键词	Interstitial atom Cryogenic treatment Martensitic stainless steel Atom probe tomography
资助者	National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Major Scientific and Technological Projects of Jiangxi Province
DOI	10.1007/s40195-021-01265-7
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51871212] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDC04000000] ; Major Scientific and Technological Projects of Jiangxi Province[20194ABC28011] ; Major Scientific and Technological Projects of Jiangxi Province[TC190A4DA/35]
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000661766000001
出版者	CHINESE ACAD SCIENCES, INST METAL RESEARCH
引用统计	被引频次：3[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/321006/160458
专题	中国科学院金属研究所
通讯作者	Hu, Xiaoqiang
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Cai, Xin,Hu, Xiaoqiang,Zheng, Leigang,et al. Redistribution of C and N Atoms in High Nitrogen Martensitic Stainless Steel During Cryogenic Treatment[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2021:5.
APA	Cai, Xin,Hu, Xiaoqiang,Zheng, Leigang,&Li, Dianzhong.(2021).Redistribution of C and N Atoms in High Nitrogen Martensitic Stainless Steel During Cryogenic Treatment.ACTA METALLURGICA SINICA-ENGLISH LETTERS,5.
MLA	Cai, Xin,et al."Redistribution of C and N Atoms in High Nitrogen Martensitic Stainless Steel During Cryogenic Treatment".ACTA METALLURGICA SINICA-ENGLISH LETTERS (2021):5.