Effects of He radiation on cavity distribution and hardness of bulk nanolayered Cu-Nb composites
文献类型：期刊论文
| 作者 | Yang, L. X. ; Zheng, S. J. ; Zhou, Y. T. ; Zhang, J. ; Wang, Y. Q. ; Jiang, C. B. ; Mara, N. A. ; Beyerlein, I. J. ; Ma, X. L. |
| 刊名 | JOURNAL OF NUCLEAR MATERIALS
 |
| 出版日期 | 2017-04-01 |
| 卷号 | 487页码:311-316 |
| 关键词 | Interface Cavity Softening Radiation Nanolayered composite |
| ISSN号 | 0022-3115 |
| 通讯作者 | Zheng, SJ (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China. |
| 中文摘要 | Interface engineering is an important strategy for developing radiation tolerant materials. In prior work, bulk nanolayered composites fabricated by accumulative roll bonding (ARB) showed outstanding radiation resistance. However, the effects of layer thickness and radiation conditions on damage distributions and their effect on hardness have not been explored. Here, we use transmission electron microscopy (TEM) and nanoindentation to investigate the effects of radiation on the distribution of radiation-induced cavities and post-radiation hardness in ARB nanolayered Cu-Nb composites. We show that whether the cavities cross the interface depends on layer thickness and temperature, and that, remarkably, radiation could generate softening, not always hardening. We posit that the softening mainly results from the recovery of dislocations stored in the crystal after the bulk forming ARB processing due to He radiation and this phenomenon offsets radiation-induced hardening as layers become finer and temperatures rise. (C) 2017 Elsevier B.V. All rights reserved. |
| 学科主题 | Materials Science, Multidisciplinary ; Nuclear Science & Technology |
| 收录类别 | SCI |
| 资助信息 | Chinese Academy of Sciences; "Thousand Youth Talents Plan" of China; National Natural Science Foundation of China [51401208]; Shenyang National Laboratory for Materials Science [2015RP18]; U.S. Department of Energy [DE-AC52-06NA25396] |
| 语种 | 英语 |
| 公开日期 | 2017-08-17 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/78207]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | Yang, L. X.,Zheng, S. J.,Zhou, Y. T.,et al. Effects of He radiation on cavity distribution and hardness of bulk nanolayered Cu-Nb composites[J]. JOURNAL OF NUCLEAR MATERIALS,2017,487:311-316. |
| APA | Yang, L. X..,Zheng, S. J..,Zhou, Y. T..,Zhang, J..,Wang, Y. Q..,...&Ma, X. L..(2017).Effects of He radiation on cavity distribution and hardness of bulk nanolayered Cu-Nb composites.JOURNAL OF NUCLEAR MATERIALS,487,311-316. |
| MLA | Yang, L. X.,et al."Effects of He radiation on cavity distribution and hardness of bulk nanolayered Cu-Nb composites".JOURNAL OF NUCLEAR MATERIALS 487(2017):311-316. |
入库方式： OAI收割
来源：金属研究所
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