Irradiation-induced precipitation and inverse coarsening of G-phase in austenitic stainless steel weld metal

doi:10.1016/j.matchar.2019.03.035

CORC > 金属研究所 > 中国科学院金属研究所

	Irradiation-induced precipitation and inverse coarsening of G-phase in austenitic stainless steel weld metal
	Li, Xiaodong 1,2; Peng, Qunjia 1,3; Han, En-Hou 1; Ke, Wei 1; Jiao, Zhijie 4
刊名	MATERIALS CHARACTERIZATION
	2019-05-01
卷号	151 页码:396-403
关键词	Austenitic steels G-phase Irradiation Precipitation Inverse coarsening
ISSN号	1044-5803
DOI	10.1016/j.matchar.2019.03.035
通讯作者	Peng, Qunjia(pengqunjia@cgnpc.com.cn)
英文摘要	The irradiation-induced precipitation and inverse coarsening of G-phase in austenitic stainless steel weld metal were studied by using transmission electron microscopy and atom probe tomography. Following 0.5-dpa (displacement per atom) irradiation, Ni/Si/Mn/P-enriched G-phase was observed in delta-ferrite. By increasing the irradiation dose from 0.5 to 3 dpa, coarsening of G-phase occurred at first, followed by an obvious inverse coarsening. The segregation of Ni and Si atoms at alpha/alpha' interface due to spinodal decomposition was directly observed, which contributed to the G-phase precipitation. The inverse coarsening of G-phase was caused by irradiation recoil and could be interpreted by the cell model.
资助项目	International Science & Technology Cooperation Program of China[2014DFA50800] ; National Natural Science Foundation of China[51571204]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCIENCE INC
WOS记录号	WOS:000467668600045
资助机构	International Science & Technology Cooperation Program of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/133540]
专题	金属研究所_中国科学院金属研究所
通讯作者	Peng, Qunjia
作者单位	1.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China 3.Suzhou Nucl Power Res Inst, Suzhou 215004, Peoples R China 4.Univ Michigan, Dept Nucl Engn & Radiol Sci, Ann Arbor, MI 48109 USA
推荐引用方式 GB/T 7714	Li, Xiaodong,Peng, Qunjia,Han, En-Hou,et al. Irradiation-induced precipitation and inverse coarsening of G-phase in austenitic stainless steel weld metal[J]. MATERIALS CHARACTERIZATION,2019,151:396-403.
APA	Li, Xiaodong,Peng, Qunjia,Han, En-Hou,Ke, Wei,&Jiao, Zhijie.(2019).Irradiation-induced precipitation and inverse coarsening of G-phase in austenitic stainless steel weld metal.MATERIALS CHARACTERIZATION,151,396-403.
MLA	Li, Xiaodong,et al."Irradiation-induced precipitation and inverse coarsening of G-phase in austenitic stainless steel weld metal".MATERIALS CHARACTERIZATION 151(2019):396-403.