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Effect of Ce on creep damage behavior of 316LN austenitic stainless steel at 700 °C

文献类型：期刊论文

作者Yang, Renxian1,2; Ma, Shucheng1,2; Cai, Xin2; Hu, Xiaoqiang1,2; Li, Dianzhong1,2
刊名JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
出版日期2023-09-01
卷号26页码:7412-7424
关键词Cerium 316LN austenitic stainless steel Creep damage Cavitation behavior
ISSN号2238-7854
DOI10.1016/j.jmrt.2023.09.081
通讯作者Hu, Xiaoqiang(xqhu@imr.ac.cn) ; Li, Dianzhong(dzli@imr.ac.cn)
英文摘要The effect of rare earth element Ce on creep damage behavior of 316LN austenitic stainless steel (316LN) at 700 degrees C was systematically investigated under stress ranging from 125 MPa to 200 MPa. The results show that the addition of 0.032 wt% Ce remarkably improves the rupture life of 316LN steel under various stress. Ce addition in 316LN steel decreases the nucleation stress, stabilizes stress concentrations at particles, and notably raises the cavity nucleation rate. Moreover, Ce addition suppresses cavity growth during creep, thus the cavity growth rate significantly decreases and the creep rupture ductility increases under high stress over 175 MPa. However, the anomalous growth rate was engendered in some cavities by Ce addition in 316LN steel under low stress below 150 MPa. Consequently, Ce addition in 316LN steel reduces the creep rupture ductility and changes the rupture mode from trans-granular dimple fracture under high stress to mixed fracture under low stress. (c) 2023 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
资助项目National Key Research and Development Program of China[2020YFB2006800] ; Youth Innovation Promotion Associa- tion of the Chinese Academy of Sciences[Y2021060] ; K.C.Wong Education Foundation ; Shenyang Young and Middle-aged Science and Technology Innovation Talent Support Program[RC220474]
WOS研究方向Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:001106591700001
出版者ELSEVIER
资助机构National Key Research and Development Program of China ; Youth Innovation Promotion Associa- tion of the Chinese Academy of Sciences ; K.C.Wong Education Foundation ; Shenyang Young and Middle-aged Science and Technology Innovation Talent Support Program
源URL[http://ir.imr.ac.cn/handle/321006/177406]  
专题金属研究所_中国科学院金属研究所
通讯作者Hu, Xiaoqiang; Li, Dianzhong
作者单位1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, 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		 Yang, Renxian,Ma, Shucheng,Cai, Xin,et al. Effect of Ce on creep damage behavior of 316LN austenitic stainless steel at 700 °C[J]. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,2023,26:7412-7424.
APA Yang, Renxian,Ma, Shucheng,Cai, Xin,Hu, Xiaoqiang,&Li, Dianzhong.(2023).Effect of Ce on creep damage behavior of 316LN austenitic stainless steel at 700 °C.JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,26,7412-7424.
MLA Yang, Renxian,et al."Effect of Ce on creep damage behavior of 316LN austenitic stainless steel at 700 °C".JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T 26(2023):7412-7424.

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来源：金属研究所

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