Intergranular diffusion and embrittlement of a Ni-16Mo-7Cr alloy in Te vapor environment
Cheng, HW; Li, ZJ; Leng, B; Zhang, WZ; Han, FF; Jia, YY; Zhou, XT; Leng, B (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, 2019 Jia Lou Rd, Shanghai 201800, Peoples R China.
2015
发表期刊JOURNAL OF NUCLEAR MATERIALS
ISSN0022-3115
卷号467页码:341—348
文章类型期刊文献
摘要Nickel and some nickel-base alloys are extremely sensitive to intergranular embrittlement and tellurium (Te) enhanced cracking, which should be concerned during their serving in molten salt reactors. Here, a systematic study about the effects of its temperature on the reaction products at its surface, the intergranular diffusion of Te in its body and its embrittlement for a Ni-16Mo-7Cr alloy contacting Te is reported. For exposed to Te vapor at high temperature (823-1073 K), the reaction products formed on the surface of the alloy were Ni3Te2, CrTe, and MoTe2, and the most serious embrittlement was observed at 1073 K. The kinetic measurement in terms of Te penetration depth in the alloy samples gives an activation energy of 204 kJ/mol. Electron probe microanalysis confirmed the local enrichment of Te at grain boundaries. And clearly, the embrittlement was results from the intergranular diffusion and segregation of element Te. (C) 2015 Elsevier B.V. All rights reserved.
关键词Grain-boundary Hastelloy-n Nickel Temperature Superalloy
语种英语
WOS记录号WOS:000365602800036
引用统计
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/24969
专题中科院上海应用物理研究所2011-2018年
通讯作者Leng, B (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, 2019 Jia Lou Rd, Shanghai 201800, Peoples R China.
推荐引用方式
GB/T 7714
Cheng, HW,Li, ZJ,Leng, B,et al. Intergranular diffusion and embrittlement of a Ni-16Mo-7Cr alloy in Te vapor environment[J]. JOURNAL OF NUCLEAR MATERIALS,2015,467:341—348.
APA Cheng, HW.,Li, ZJ.,Leng, B.,Zhang, WZ.,Han, FF.,...&Leng, B .(2015).Intergranular diffusion and embrittlement of a Ni-16Mo-7Cr alloy in Te vapor environment.JOURNAL OF NUCLEAR MATERIALS,467,341—348.
MLA Cheng, HW,et al."Intergranular diffusion and embrittlement of a Ni-16Mo-7Cr alloy in Te vapor environment".JOURNAL OF NUCLEAR MATERIALS 467(2015):341—348.
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