Temperature dependence of nickel ion irradiation damage in GH3535 alloy weld metal
Huang, HF; Zhou, XL; Li, CW; Gao, J; Wei, T; Lei, GH; Li, JJ; Ye, LF; Huang, Q; Zhu, ZY
2017
发表期刊JOURNAL OF NUCLEAR MATERIALS
ISSN0022-3115
卷号497期号:-页码:108-116
文章类型期刊论文
摘要Bulk samples of the GH3535 alloy weld metal have been characterized by transmission electron microscopy, X-ray diffraction and nanoindentation to determine their microstructural evolution and mechanical property changes after 8 MeV Ni3+ ions irradiation. The irradiation experiments were carried out at room temperature and 600 degrees C, and the ion fluences correspond to a calculated peak damage dose of 0.5, 2 and 12 dpa, respectively. TEM results show the formation of solute clusters or dislocation loops with a number density of approximately 5-14 x 10(22) m(-3) and sizes between 3 and 10 nm at room temperature due to irradiation induced defects and their evolution. Moreover, the peak shift with increasing ion dose observed in XRD diffraction patterns reveals the lattice distortion induced by ion irradiation. As far as the case of high temperature irradiation, several solute clusters with the same size were observed, whereas the number density was smaller than that of the former case. The calculated indentation values in irradiated samples were found to be much higher in comparison to the unirradiated one, indicating the dose dependent effect of irradiation on hardness. However, in the case of the ion irradiation at 600 degrees C, the hardness value of samples was significantly decreased. The relationship between ion irradiation induced microstructural evolution and the changes in the mechanical properties of this weld metal is discussed in the context of ion dose and irradiation temperature. (C) 2017 Elsevier B.V. All rights reserved.
关键词Radiation-induced Segregation Austenitic Stainless-steels Pressure-vessel Steels Microstructural Evolution Elevated-temperature Beam Irradiation Elastic-modulus Indentation Hardness Reactor
DOI10.1016/j.jnucmat.2017.06.005
关键词[WOS]RADIATION-INDUCED SEGREGATION ; AUSTENITIC STAINLESS-STEELS ; PRESSURE-VESSEL STEELS ; MICROSTRUCTURAL EVOLUTION ; ELEVATED-TEMPERATURE ; BEAM IRRADIATION ; ELASTIC-MODULUS ; INDENTATION ; HARDNESS ; REACTOR
收录类别SCI
语种英语
WOS记录号WOS:000415718800013
引用统计
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/28852
专题中科院上海应用物理研究所2011-2018年
推荐引用方式
GB/T 7714
Huang, HF,Zhou, XL,Li, CW,et al. Temperature dependence of nickel ion irradiation damage in GH3535 alloy weld metal[J]. JOURNAL OF NUCLEAR MATERIALS,2017,497(-):108-116.
APA Huang, HF.,Zhou, XL.,Li, CW.,Gao, J.,Wei, T.,...&Zhu, ZY.(2017).Temperature dependence of nickel ion irradiation damage in GH3535 alloy weld metal.JOURNAL OF NUCLEAR MATERIALS,497(-),108-116.
MLA Huang, HF,et al."Temperature dependence of nickel ion irradiation damage in GH3535 alloy weld metal".JOURNAL OF NUCLEAR MATERIALS 497.-(2017):108-116.
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