Positron annihilation study of irradiated China domestic A508-3 steels
文献类型：会议论文
| 作者 | Liu, Xiangbing1,2; Wang, Rongshan1; Ren, Ai1; Wang, Xitao2; Wu, Yichu3; Zhang, Chonghong4; Huang, Ping1; Jiang, Jing3; Li, Shuxiao2; Chinese Mat Res Soc |
| 出版日期 | 2012 |
| 关键词 | A508-3 steels proton radiation positron annihilation |
| 卷号 | 27 |
| DOI | 10.1016/j.proeng.2011.12.629 |
| 页码 | 1618-1625 |
| 英文摘要 | China domestic A508-3 steels are irradiated by protons with energy of 240 keV under the damage doses of 0.26 dpa, 0.50 dpa and 1.00 dpa, respectively. The results from positron lifetime spectrum analysis and microharness test show that tau(1), tau(2) lifetimes of A508-3 steels increase with increasing radiation dose. The variation of short lifetime value of tau(1) from 120 ps to 151 ps means that monovacancies and divacancies emerge in the steels after proton radiation. The variation of long lifetime value of tau(2) from 226 ps to 262 ps means that micro voids containing several vacancies are produced by radiation damage. The average diameter of voids under the three damage level is 0.41 nm, 0.45 nm, and 0.45 nm, respectively. Radiation hardening is due to the improvement of dislocation motion resistance which is caused by radiation defects such as vacancies, voids and possible copper enriched clusters. (C) 2011 Published by Elsevier Ltd. |
| 会议录 | 2011 CHINESE MATERIALS CONFERENCE
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| 会议录出版者 | ELSEVIER SCIENCE BV |
| 会议录出版地 | SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS |
| 语种 | 中文 |
| 资助项目 | National Science Foundation of China[51071111] |
| WOS研究方向 | Materials Science |
| WOS记录号 | WOS:000393154000213 |
| 源URL | [http://119.78.100.186/handle/113462/57333]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Liu, Xiangbing |
| 作者单位 | 1.Suzhou Nucl Power Res Inst, Ctr Plant Life Management, Suzhou 215004, Peoples R China 2.Univ Sci & Technol Beijing, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China 3.Wuhan Univ, Dept Phys, Wuhan 430072, Peoples R China 4.Chinese Acad Sci, China Inst Modern Phys, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Xiangbing,Wang, Rongshan,Ren, Ai,et al. Positron annihilation study of irradiated China domestic A508-3 steels[C]. 见:. |
入库方式： OAI收割
来源：近代物理研究所
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