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| 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 Publication | SCRIPTA MATERIALIA
 |
| ISSN | 1359-6462 |
| Volume | 147Pages:93-97 |
| Subtype | 期刊论文 |
| Abstract | 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. |
| Keyword | Cavity Growth Structural-materials Surface-diffusion Brownian-motion Fusion Energy Metals Coalescence Irradiation |
| DOI | 10.1016/j.scriptamat.2018.01.006 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000426232300020 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.sinap.ac.cn/handle/331007/28914 |
| Collection | 中科院上海应用物理研究所2011-2020年 |
| Affiliation | 1.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. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| A special coarsening（1920KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Download | |
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