Positron annihilation study of the micro-defects induced by cavitation in mild steel
文献类型：期刊论文
| 作者 | Zhao, M ; Wang, JD; Chen, DR; Hao, XP; Wang, BY; Hao XP(郝小鹏); Wang BY(王宝义)
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| 刊名 | PHYSICA B-CONDENSED MATTER
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| 出版日期 | 2008 |
| 卷号 | 403期号:17页码:2594-2596 |
| 关键词 | cavitation positron Doppler broadening measurement positron annihilation lifetime micro-defects mild steel |
| 通讯作者 | [Zhao, Ming ; Wang, Jiadao ; Chen, Darong] Tsinghua Univ, State Key Lab Tribol, Beijing 100084, Peoples R China ; [Hao, Xiaopeng ; Wang, Baoyi] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China |
| 英文摘要 | Cavitation-induced micro-defects in mild steel after cavitation experiment in the fluid field have been studied by positron Doppler broadening measurement and positron annihilation lifetime spectra (PALS). Depth-resolved positron Doppler S-parameter (DPDS) results showed that S-parameter increased and micro-defects between the surface and the bulk has obvious variation with depth during the cavitation process. From the positron lifetime results, it was found that the size and number of micro-defects increase with the development of cavitation. These results suggest that more micro-defects are generated in mild steel bulk during the cavitation process than those in the mild steel surface layer region, although more mico-defects seen in the mild steel surface layer. Moreover, the size of micro-defects in mild steel bulk increases remarkably owing to their transfer and aggregation. (C) 2008 Elsevier B.V. All rights reserved. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Condensed Matter |
| 研究领域[WOS] | Physics |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000257915100011 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/239790]  |
| 专题 | 高能物理研究所_多学科研究中心 高能物理研究所_实验物理中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Zhao, M,Wang, JD,Chen, DR,et al. Positron annihilation study of the micro-defects induced by cavitation in mild steel[J]. PHYSICA B-CONDENSED MATTER,2008,403(17):2594-2596. |
| APA | Zhao, M.,Wang, JD.,Chen, DR.,Hao, XP.,Wang, BY.,...&王宝义.(2008).Positron annihilation study of the micro-defects induced by cavitation in mild steel.PHYSICA B-CONDENSED MATTER,403(17),2594-2596. |
| MLA | Zhao, M,et al."Positron annihilation study of the micro-defects induced by cavitation in mild steel".PHYSICA B-CONDENSED MATTER 403.17(2008):2594-2596. |
入库方式： OAI收割
来源：高能物理研究所
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