Study of hydrogen embrittlement of Fe-Ni base alloy by positron annihilation lifetime spectroscopy
文献类型：期刊论文
| 作者 | Zhang, J; Li, XY; Rong, LJ; Zheng, YN; Zhu, SY |
| 刊名 | ACTA METALLURGICA SINICA
 |
| 出版日期 | 2006-05-11 |
| 卷号 | 42期号:5页码:469-473 |
| 关键词 | Fe-Ni base alloy positron annihilation precipitation-strengthening hydrogen embrittlement |
| ISSN号 | 0412-1961 |
| 通讯作者 | Rong, LJ() |
| 英文摘要 | Positron annihilation lifetime spectroscopy was used to study the occupying rule and action mechanism of hydrogen in a Fe-Ni base precipitation-strengthened austenitic alloy. Tensile tests, SEM and TEM were performed to investigate the influences of heat treatment and hot hydrogen charging on its microstructure and mechanical properties. Results showed that hydrogen charging increased vacancy clusters' concentration in solution treated alloy and improved its strength while slightly decreased its plasticity; in peak aged alloy, hydrogen entered the grain boundaries with a little amount of carbides and inter-grain vacancy clusters rather than gamma'/gamma interface, resulting in an obvious drop of plasticity; overaging treatment made gamma' coarsening and gamma'/gamma interface became hydrogen traps, in addition, hydrogen also entranced the grain boundaries with interconnection carbides. Those two factors led to a dramatic drop of the alloy plasticity. |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000237981200005 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.imr.ac.cn/handle/321006/88494]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Rong, LJ |
| 作者单位 | 1.China Inst Atom Energy, Beijing 102413, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, J,Li, XY,Rong, LJ,et al. Study of hydrogen embrittlement of Fe-Ni base alloy by positron annihilation lifetime spectroscopy[J]. ACTA METALLURGICA SINICA,2006,42(5):469-473. |
| APA | Zhang, J,Li, XY,Rong, LJ,Zheng, YN,&Zhu, SY.(2006).Study of hydrogen embrittlement of Fe-Ni base alloy by positron annihilation lifetime spectroscopy.ACTA METALLURGICA SINICA,42(5),469-473. |
| MLA | Zhang, J,et al."Study of hydrogen embrittlement of Fe-Ni base alloy by positron annihilation lifetime spectroscopy".ACTA METALLURGICA SINICA 42.5(2006):469-473. |
入库方式： OAI收割
来源：金属研究所
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