A special coarsening mechanism for intergranular helium bubbles upon heating: A combined experimental and numerical study

doi:10.1016/j.scriptamat.2018.01.006

CAS OpenIR > 中科院上海应用物理研究所2011-2018年

	A special coarsening mechanism for intergranular helium bubbles upon heating: A combined experimental and numerical study
	Gao, J ; Huang, HF ; Liu, X ; Wang, CB ; Stubbins, JF ; Li, Y
	2018
发表期刊	SCRIPTA MATERIALIA
ISSN	1359-6462
卷号	147 页码:93-97
文章类型	期刊论文
摘要	Here, by using in situ transmission electron microcopy, we discovered a special mechanism governing the coarsening of intergranular helium bubbles, which exhibit pancake-like growth along grain boundaries to achieve coalescence with another bubble upon heating at 673 K. The developed analytical model, addressing the stress field induced by the bubble internal pressure, well reproduced the observed shape evolution during the bubble growth. Moreover, we show that the coalescing rate of intergranular bubbles was controlled by the surface diffusion and can be accelerated by the pressure gradient between bubbles. (C) 2018 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
关键词	Cavity Growth Structural-materials Surface-diffusion Brownian-motion Fusion Energy Metals Coalescence Irradiation
DOI	10.1016/j.scriptamat.2018.01.006
收录类别	SCI
语种	英语
WOS记录号	WOS:000426232300020
引用统计
文献类型	期刊论文
条目标识符	http://ir.sinap.ac.cn/handle/331007/28914
专题	中科院上海应用物理研究所2011-2018年
作者单位	1.Gao, J 2.Huang, HF 3.Liu, X 4.Wang, CB 5.Stubbins, JF 6.Li, Y
推荐引用方式 GB/T 7714	Gao, J,Huang, HF,Liu, X,et al. A special coarsening mechanism for intergranular helium bubbles upon heating: A combined experimental and numerical study[J]. SCRIPTA MATERIALIA,2018,147:93-97.
APA	Gao, J,Huang, HF,Liu, X,Wang, CB,Stubbins, JF,&Li, Y.(2018).A special coarsening mechanism for intergranular helium bubbles upon heating: A combined experimental and numerical study.SCRIPTA MATERIALIA,147,93-97.
MLA	Gao, J,et al."A special coarsening mechanism for intergranular helium bubbles upon heating: A combined experimental and numerical study".SCRIPTA MATERIALIA 147(2018):93-97.

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A special coarsening（1920KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	请求全文