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Irradiation-induced precipitation and inverse coarsening of G-phase in austenitic stainless steel weld metal
Li, Xiaodong1,2; Peng, Qunjia1,3; Han, En-Hou1; Ke, Wei1; Jiao, Zhijie4
Corresponding AuthorPeng, Qunjia(pengqunjia@cgnpc.com.cn)
2019-05-01
Source PublicationMATERIALS CHARACTERIZATION
ISSN1044-5803
Volume151Pages:396-403
AbstractThe 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.
KeywordAustenitic steels G-phase Irradiation Precipitation Inverse coarsening
Funding OrganizationInternational Science & Technology Cooperation Program of China ; National Natural Science Foundation of China
DOI10.1016/j.matchar.2019.03.035
Indexed BySCI
Language英语
Funding ProjectInternational Science & Technology Cooperation Program of China[2014DFA50800] ; National Natural Science Foundation of China[51571204]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Materials Science, Characterization & Testing
WOS IDWOS:000467668600045
PublisherELSEVIER SCIENCE INC
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/133541
Collection中国科学院金属研究所
Corresponding AuthorPeng, Qunjia
Affiliation1.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
Recommended Citation
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.
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