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DOI | 10.1126/science.aal2418 |
Direct observation of individual hydrogen atoms at trapping sites in a ferritic steel | |
Chen, Y. -S.1; Haley, D.1; Gerstl, S. S. A.2; London, A. J.1; Sweeney, F.3; Wepf, R. A.2,4; Rainforth, W. M.3; Bagot, P. A. J.1; Moody, M. P.1 | |
2017-03-17 | |
发表期刊 | SCIENCE |
ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2017 |
卷号 | 355期号:6330页码:1196-1199 |
文章类型 | Article |
语种 | 英语 |
国家 | England; Switzerland; Australia |
英文摘要 | The design of atomic-scale microstructural traps to limit the diffusion of hydrogen is one key strategy in the development of hydrogen-embrittlement-resistant materials. In the case of bearing steels, an effective trapping mechanism may be the incorporation of finely dispersed V-Mo-Nb carbides in a ferrite matrix. First, we charged a ferritic steel with deuterium by means of electrolytic loading to achieve a high hydrogen concentration. We then immobilized it in the microstructure with a cryogenic transfer protocol before atom probe tomography (APT) analysis. Using APT, we show trapping of hydrogen within the core of these carbides with quantitative composition profiles. Furthermore, with this method the experiment can be feasibly replicated in any APT-equipped laboratory by using a simple cold chain. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000396351200041 |
WOS关键词 | DELAYED FRACTURE ; EMBRITTLEMENT ; VISUALIZATION ; PRECIPITATION ; TOMOGRAPHY ; BEHAVIOR |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/195633 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Univ Oxford, Dept Mat, 16 Pk Rd, Oxford OX1 3PH, England; 2.Swiss Fed Inst Technol, Sci Ctr Opt & Electron Microscopy, Auguste Piccard Hof 1, CH-8093 Zurich, Switzerland; 3.Univ Sheffield, Dept Mat Sci & Engn, Western Bank, Sheffield S10 2TN, S Yorkshire, England; 4.Univ Queensland, Fac Sci, Ctr Microscopy & Microanal, Brisbane, Qld 4072, Australia |
推荐引用方式 GB/T 7714 | Chen, Y. -S.,Haley, D.,Gerstl, S. S. A.,et al. Direct observation of individual hydrogen atoms at trapping sites in a ferritic steel[J]. SCIENCE,2017,355(6330):1196-1199. |
APA | Chen, Y. -S..,Haley, D..,Gerstl, S. S. A..,London, A. J..,Sweeney, F..,...&Moody, M. P..(2017).Direct observation of individual hydrogen atoms at trapping sites in a ferritic steel.SCIENCE,355(6330),1196-1199. |
MLA | Chen, Y. -S.,et al."Direct observation of individual hydrogen atoms at trapping sites in a ferritic steel".SCIENCE 355.6330(2017):1196-1199. |
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