Helium nano-bubble bursting near the nickel surface

doi:10.1088/1674-1056/26/11/113401

CAS OpenIR > 中科院上海应用物理研究所2011-2018年

	Helium nano-bubble bursting near the nickel surface
	Gong, HF; Liu, M; Gao, F; Li, R; Yan, Y; Huang, H; Liu, T; Ren, QS
	2017
发表期刊	CHINESE PHYSICS B
ISSN	1674-1056
卷号	26 期号:11 页码:-
文章类型	期刊论文
摘要	We have investigated the expansion and bursting of a helium nano-bubble near the surface of a nickel matrix using a molecular dynamics simulation. The helium atoms erupt from the bubble in an instantaneous and volcano-like process, which leads to surface deformation consisting of cavity formation on the surface, along with modification and atomic rearrangement at the periphery of the cavity. During the kinetic releasing process, the channel may undergo the "open" and "close" states more than once due to the variation of the stress inside the nano-bubble. The ratio between the number of helium atoms and one of vacancies can directly reflect the releasing rate under different temperatures and crystallographic orientation conditions, respectively. Moreover, a special relationship between the stress and He-to-vacancy ratio is also determined. This model is tested to compare with the experimental result from Hastelloy N alloys implanted by helium ions and satisfactory agreement is obtained.
关键词	Embedded-atom Potentials Point-defect Properties Molecular-dynamics Gas-release Metals Tungsten Implantation Irradiation Impurities Diffusion
DOI	10.1088/1674-1056/26/11/113401
关键词[WOS]	EMBEDDED-ATOM POTENTIALS ; POINT-DEFECT PROPERTIES ; MOLECULAR-DYNAMICS ; GAS-RELEASE ; METALS ; TUNGSTEN ; IMPLANTATION ; IRRADIATION ; IMPURITIES ; DIFFUSION
收录类别	SCI
语种	英语
WOS记录号	WOS:000414688800001
引用统计
文献类型	期刊论文
条目标识符	http://ir.sinap.ac.cn/handle/331007/28674
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	Gong, HF,Liu, M,Gao, F,et al. Helium nano-bubble bursting near the nickel surface[J]. CHINESE PHYSICS B,2017,26(11):-.
APA	Gong, HF.,Liu, M.,Gao, F.,Li, R.,Yan, Y.,...&Ren, QS.(2017).Helium nano-bubble bursting near the nickel surface.CHINESE PHYSICS B,26(11),-.
MLA	Gong, HF,et al."Helium nano-bubble bursting near the nickel surface".CHINESE PHYSICS B 26.11(2017):-.

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