Irradiation-induced segregation at phase boundaries in austenitic stainless steel weld metal

IMR OpenIR

	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.
	2018-05-01
发表期刊	SCRIPTA MATERIALIA
ISSN	1359-6462
卷号	149 页码:11-15
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.
部门归属	[lin, xiaodong ; peng, qunjia ; han, en-hou ; ke, wei] chinese acad sci, inst met res, key lab nucl mat & safety assessment, shenyang 110016, liaoning, peoples r china ; [lin, xiaodong] univ sci & technol china, sch mat sci & engn, shenyang 110016, liaoning, peoples r china ; [sun, chen] state power investment corp res inst, beijing 102209, peoples r china ; [jiao, zhijie] univ michigan, dept nucl engn & radiol sci, ann arbor, mi 48109 usa
关键词	Radiation-induced Segregation Stress-corrosion Cracking Atom-probe Tomography Intergranular Corrosion Specimen Preparation Neutron-irradiation Primary Water Aisi 316l Stability Evolution
学科领域	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
资助者	International Science & Technology Cooperation Program of China [2014DFA50800]
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/79340
专题	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.