Enhancement Mechanism of Cerium in 316LN Austenitic Stainless Steel During Creep at 700 degrees C

doi:10.1007/s40195-022-01467-7

IMR OpenIR

	Enhancement Mechanism of Cerium in 316LN Austenitic Stainless Steel During Creep at 700 degrees C
	Yang, Renxian 1,2; Cai, Xin 1; Zheng, Leigang 1,2; Hu, Xiaoqiang 1,2; Li, Dianzhong 1,2
通讯作者	Hu, Xiaoqiang(xqhu@imr.ac.cn)
	2022-09-22
发表期刊	ACTA METALLURGICA SINICA-ENGLISH LETTERS
ISSN	1006-7191
页码	6
摘要	Effect of cerium (Ce) on creep strength and microstructure of 316LN austenitic stainless steel (316LN steel) at 700 degrees C/150 MPa was investigated by scanning electron microscopy (SEM), scanning transmission electron microscopy (STEM) and thermodynamic calculations. Addition of 0.032 wt% Ce to 316LN steel results in a prominent increase in creep life from 313 to 556 h. Ce enriches in titanium nitride nanoparticles, increases slightly the activity and diffusion coefficient of Mo, and facilitates the formation of fine and dense intragranular Laves phase precipitates. Thus the creep strength is remarkably enhanced by Ce addition in 316LN steel through the intragranular Laves phase precipitation strengthening. It reveals a new insight into the improvement effect of rare earth (RE) elements such as Ce on creep strength of austenitic stainless steels, which inspired the design of RE-microalloying heat-resistant steels.
关键词	316LN austenitic stainless steel Rare earth Creep Laves phase Precipitation strengthening
资助者	National Natural Science Foundation of China ; National Key Research and Development Program of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Key Project for the Application of Advances in Science and Technology of the Chinese Academy of Sciences ; Project for the Application of Advances in Science and Technology of the Chinese Academy of Sciences in Henan Province ; K.C. Wong Education Foundation
DOI	10.1007/s40195-022-01467-7
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51871212] ; National Key Research and Development Program of China[2020YFB2006800] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDC04010400] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[Y2021060] ; Key Project for the Application of Advances in Science and Technology of the Chinese Academy of Sciences[KFJ-HGZX-032] ; Project for the Application of Advances in Science and Technology of the Chinese Academy of Sciences in Henan Province[2022203] ; K.C. Wong Education Foundation
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000856610200001
出版者	CHINESE ACAD SCIENCES, INST METAL RESEARCH
引用统计	被引频次：6[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/321006/175431
专题	中国科学院金属研究所
通讯作者	Hu, Xiaoqiang
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Yang, Renxian,Cai, Xin,Zheng, Leigang,et al. Enhancement Mechanism of Cerium in 316LN Austenitic Stainless Steel During Creep at 700 degrees C[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2022:6.
APA	Yang, Renxian,Cai, Xin,Zheng, Leigang,Hu, Xiaoqiang,&Li, Dianzhong.(2022).Enhancement Mechanism of Cerium in 316LN Austenitic Stainless Steel During Creep at 700 degrees C.ACTA METALLURGICA SINICA-ENGLISH LETTERS,6.
MLA	Yang, Renxian,et al."Enhancement Mechanism of Cerium in 316LN Austenitic Stainless Steel During Creep at 700 degrees C".ACTA METALLURGICA SINICA-ENGLISH LETTERS (2022):6.