Effect of Ce on creep damage behavior of 316LN austenitic stainless steel at 700 &deg;C

doi:10.1016/j.jmrt.2023.09.081

IMR OpenIR

	Effect of Ce on creep damage behavior of 316LN austenitic stainless steel at 700 °C
	Yang, Renxian 1,2; Ma, Shucheng 1,2; Cai, Xin 1; Hu, Xiaoqiang 1,2; Li, Dianzhong 1,2
通讯作者	Hu, Xiaoqiang(xqhu@imr.ac.cn) ; Li, Dianzhong(dzli@imr.ac.cn)
	2023-09-01
发表期刊	JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
ISSN	2238-7854
卷号	26 页码:7412-7424
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/).
关键词	Cerium 316LN austenitic stainless steel Creep damage Cavitation behavior
资助者	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
DOI	10.1016/j.jmrt.2023.09.081
收录类别	SCI
语种	英语
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
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001106591700001
出版者	ELSEVIER
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/321006/177407
专题	中国科学院金属研究所
通讯作者	Hu, Xiaoqiang; Li, Dianzhong
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,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.