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	Irradiation-induced segregation at phase boundaries in austenitic stainless steel weld metal
	Lin, XD; Peng, QJ; Han, EH; Ke, W; Sun, C; Jiao, ZJ; Peng, QJ (reprint author), Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Liaoning, Peoples R China.
刊名	SCRIPTA MATERIALIA
	2018-05-01
卷号	149页码:11-15
关键词	Radiation-induced Segregation Stress-corrosion Cracking Atom-probe Tomography Intergranular Corrosion Specimen Preparation Neutron-irradiation Primary Water Aisi 316l Stability Evolution
ISSN号	1359-6462
英文摘要	Irradiation-induced segregation (RIS) at phase boundaries in austenitic stainless steel weld metal was studied using atom probe tomography. Irradiation induced depletion of Cr and Mn and enrichment of Ni and Si at the delta-ferrite/austenite, delta-ferrite/carbide and austenite/carbide phase boundaries. The vacancy mechanism and the solute-defect binding model were applied to interpret the RIS at the phase boundaries. The concentration gradients of Cr and Ni at the phase boundary regions reduced Cr depletion but promoted Ni segregation, which caused a difference with the RIS at the grain boundary. (C) 2018 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.; Irradiation-induced segregation (RIS) at phase boundaries in austenitic stainless steel weld metal was studied using atom probe tomography. Irradiation induced depletion of Cr and Mn and enrichment of Ni and Si at the delta-ferrite/austenite, delta-ferrite/carbide and austenite/carbide phase boundaries. The vacancy mechanism and the solute-defect binding model were applied to interpret the RIS at the phase boundaries. The concentration gradients of Cr and Ni at the phase boundary regions reduced Cr depletion but promoted Ni segregation, which caused a difference with the RIS at the grain boundary. (C) 2018 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
学科主题	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
语种	英语
资助机构	International Science & Technology Cooperation Program of China [2014DFA50800]
公开日期	2018-06-05
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/79340]
专题	金属研究所_中国科学院金属研究所
通讯作者	Peng, QJ (reprint author), Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Liaoning, Peoples R China.
推荐引用方式 GB/T 7714	Lin, XD,Peng, QJ,Han, EH,et al. Irradiation-induced segregation at phase boundaries in austenitic stainless steel weld metal[J]. SCRIPTA MATERIALIA,2018,149:11-15.
APA	Lin, XD.,Peng, QJ.,Han, EH.,Ke, W.,Sun, C.,...&Peng, QJ .(2018).Irradiation-induced segregation at phase boundaries in austenitic stainless steel weld metal.SCRIPTA MATERIALIA,149,11-15.
MLA	Lin, XD,et al."Irradiation-induced segregation at phase boundaries in austenitic stainless steel weld metal".SCRIPTA MATERIALIA 149(2018):11-15.

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