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Irradiation-induced precipitation and inverse coarsening of G-phase in austenitic stainless steel weld metal
Li, Xiaodong; Peng, Qunjia; Han, En-Hou; Ke, Wei; Jiao, Zhijie
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
Indexed BySCI
Language英语
WOS IDWOS:000467668600045
PublisherELSEVIER SCIENCE INC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/81127
Collection中国科学院金属研究所
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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