Influence of inter-dendritic segregation on the precipitation behaviour and mechanical properties in a vanadium-containing Fe-Cr-Ni-Mo weld metal

doi:10.1016/j.scriptamat.2020.05.021

CORC > 金属研究所 > 中国科学院金属研究所

	Influence of inter-dendritic segregation on the precipitation behaviour and mechanical properties in a vanadium-containing Fe-Cr-Ni-Mo weld metal
	Sun, Jian 1,2; Lu, Shanping 1,2
刊名	SCRIPTA MATERIALIA
	2020-09-01
卷号	186 页码:174-179
关键词	Welding Transmission electron microscopy Atom probe tomography Inter-dendritic segregation
ISSN号	1359-6462
DOI	10.1016/j.scriptamat.2020.05.021
通讯作者	Lu, Shanping(shplu@imr.ac.cn)
英文摘要	A novel Fe-Cr-Ni-Mo weld metal containing different V content was designed and fabricated by gas metal arc welding and post-weld heat treatment. The excellent mechanical properties with a combination of high strength and good toughness were obtained by synergistic effect of nanoscale carbides, highdensity dislocations and small subgrains. The discrete nanoscale carbides were characterised by transmission electron microscopy and atom probe tomography. Moreover, it was firstly found that the precipitation sites of nanoscale carbides were mainly located at inter-dendritic regions instead of dendritic core regions owing to the heterogeneous distribution of alloying elements. (C) 2020 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
资助项目	National Key R&D Program of China[2016YFB0300601] ; Natural Science Foundation of Liaoning Province[2019p-13/30100039]
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000543035500035
资助机构	National Key R&D Program of China ; Natural Science Foundation of Liaoning Province
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/139557]
专题	金属研究所_中国科学院金属研究所
通讯作者	Lu, Shanping
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Sun, Jian,Lu, Shanping. Influence of inter-dendritic segregation on the precipitation behaviour and mechanical properties in a vanadium-containing Fe-Cr-Ni-Mo weld metal[J]. SCRIPTA MATERIALIA,2020,186:174-179.
APA	Sun, Jian,&Lu, Shanping.(2020).Influence of inter-dendritic segregation on the precipitation behaviour and mechanical properties in a vanadium-containing Fe-Cr-Ni-Mo weld metal.SCRIPTA MATERIALIA,186,174-179.
MLA	Sun, Jian,et al."Influence of inter-dendritic segregation on the precipitation behaviour and mechanical properties in a vanadium-containing Fe-Cr-Ni-Mo weld metal".SCRIPTA MATERIALIA 186(2020):174-179.