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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 | |
| 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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