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题名:
Mitigation of He embrittlement and swelling in nickel by dispersed SiC nanoparticles
作者: Huang, HF; Zhang, W; De Los Reyes, M; Zhou, XL; Yang, C; Xie, R; Zhou, XT; Huai, P; Xu, HJ
刊名: MATERIALS & DESIGN
出版日期: 2016
卷号: 90, 期号:-, 页码:359—363
关键词: XENON ION IRRADIATION ; HIGH-TEMPERATURE ; HELIUM IMPLANTATION ; FERRITIC STEELS ; METALS ; MICROSTRUCTURE ; COMPOSITES ; REACTORS ; BEHAVIOR ; SYSTEMS
DOI: 10.1016/j.matdes.2015.10.147
通讯作者: Huang, HF (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, 2019 Jialuo Rd, Shanghai 201800, Peoples R China.
文章类型: 期刊文献
英文摘要: The development of high-temperature irradiation-resistant nickel-based alloys has been receiving much attention due to their potential applications in molten salt reactors (MSRs). Pure nickel and SiC nanoparticles dispersed nickel-based alloys (Ni-SiCNP composites) have been characterized by transmission electron microscopy (TEM) to determine the helium diffusion behavior under 3 MeV helium ion irradiation at 600 degrees C with ion fluence up to 3 x 10(20) ions/m(2). The TEM results indicated that the presence of dispersed SiCNP in nickel can inhibit the growth of helium bubbles, thereby mitigate the helium embrittlement and swelling of nickel-based alloys. The theoretical calculation results using the density functional theory (DFT) showed that the helium atoms prefer to diffuse to the interface between SiCNP and nickel matrix, and thus avoid the grain boundary segregation and also the growth of helium bubbles. This study confirmed the feasibility of dispersing carbides in nickel-based alloys to improve the irradiation-resistant performance of materials. (C) 2015 Elsevier Ltd. All rights reserved.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000367235100043
ISSN号: 0261-3069
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinap.ac.cn/handle/331007/25773
Appears in Collections:中科院上海应用物理研究所2011-2017年_期刊论文

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Recommended Citation:
Huang, HF,Zhang, W,De Los Reyes, M,et al. Mitigation of He embrittlement and swelling in nickel by dispersed SiC nanoparticles[J]. MATERIALS & DESIGN,2016-01-01,90(-):359—363.
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