Microstructural evolution and hardening of GH3535 alloy under energetic Xe ion irradiation at room temperature and 650 degrees C
Huang, HF; Gao, J; Radiguet, B; Liu, RD; Li, JJ; Lei, GH; Huang, Q; Liu, M; Xie, RB
2018
发表期刊JOURNAL OF NUCLEAR MATERIALS
ISSN0022-3115
卷号499页码:431-439
文章类型期刊论文
摘要The GH3535 alloy was irradiated with 7 MeV Xe26+ ions to a dose of 10 dpa at room temperature (RT) and 650 degrees C, and subsequently examined using Transmission Electron Microscopy (TEM) and nanoindentation. High numbers of nano-sized black dots, identified as dislocation loops were observed in both irradiated samples. The dislocation loops detected at the high temperature irradiated sample (size/number density: 9.5 nm/1.9 x 10(21) m(-3)) were found to be larger in size but less in amount as compared to that of the case of RT irradiation (6.9 nm/18.7 x 10(21) m(-3)). In addition, the large-sized Mo-Cr rich precipitates (16.4 nm/3.7 x 10(21) m(-3)) were observed in the sample irradiated at 650 degrees C. Moreover, the Xe bubbles, with smaller size (2.9 nm) but higher number density (77.8 x 10(21) m(-3)) among the irradiated induced defects, were also detected in the case of high temperature irradiated sample via the diffusion and aggregation of Xe atoms. Nanoindentaion measurements showed a hardening phenomenon for the irradiated sample, and the hardness increment is higher in the case of high temperature irradiated sample. Dispersed barrier-hardening (DBH) model was applied to predict the hardening produced from the irradiation induced defects. The yield strength increment calculated based on TEM observations and the nanohardness increment measured using nanoindentation are in excellent agreement. (C) 2017 Elsevier B.V. All rights reserved.
关键词Austenitic Stainless-steels Hastelloy n Alloy Transmission Electron-microscopy Radiation-induced Segregation Elevated-temperature Beam Irradiation Defect Clusters Elastic-modulus Fcc Metals Damage
DOI10.1016/j.jnucmat.2017.12.006
收录类别SCI
语种英语
WOS记录号WOS:000425106800047
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/29074
专题中科院上海应用物理研究所2011-2018年
作者单位1.Huang, HF
2.Gao, J
3.Radiguet, B
4.Liu, RD
5.Li, JJ
6.Lei, GH
7.Huang, Q
8.Liu, M
9.Xie, RB
推荐引用方式
GB/T 7714
Huang, HF,Gao, J,Radiguet, B,et al. Microstructural evolution and hardening of GH3535 alloy under energetic Xe ion irradiation at room temperature and 650 degrees C[J]. JOURNAL OF NUCLEAR MATERIALS,2018,499:431-439.
APA Huang, HF.,Gao, J.,Radiguet, B.,Liu, RD.,Li, JJ.,...&Xie, RB.(2018).Microstructural evolution and hardening of GH3535 alloy under energetic Xe ion irradiation at room temperature and 650 degrees C.JOURNAL OF NUCLEAR MATERIALS,499,431-439.
MLA Huang, HF,et al."Microstructural evolution and hardening of GH3535 alloy under energetic Xe ion irradiation at room temperature and 650 degrees C".JOURNAL OF NUCLEAR MATERIALS 499(2018):431-439.
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