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
Source PublicationSCRIPTA MATERIALIA
ISSN1359-6462
Volume147Pages:93-97
Subtype期刊论文
AbstractHere, 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.
KeywordCavity Growth Structural-materials Surface-diffusion Brownian-motion Fusion Energy Metals Coalescence Irradiation
DOI10.1016/j.scriptamat.2018.01.006
Indexed BySCI
Language英语
WOS IDWOS:000426232300020
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/28914
Collection中科院上海应用物理研究所2011-2018年
Affiliation1.Gao, J
2.Huang, HF
3.Liu, X
4.Wang, CB
5.Stubbins, JF
6.Li, Y
Recommended Citation
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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