Direct observation of individual hydrogen atoms at trapping sites in a ferritic steel

Author:

Chen Y.-S.1ORCID,Haley D.1ORCID,Gerstl S. S. A.2ORCID,London A. J.1ORCID,Sweeney F.3ORCID,Wepf R. A.24ORCID,Rainforth W. M.3ORCID,Bagot P. A. J.1ORCID,Moody M. P.1ORCID

Affiliation:

1. Department of Materials, Oxford University, 16 Parks Road, Oxford OX1 3PH, UK.

2. Scientific Center for Optical and Electron Microscopy, ETH Zürich, Auguste-Piccard-Hof 1, 8093 Zürich, Switzerland.

3. Department of Materials Science and Engineering, Sheffield University, Western Bank, Sheffield S10 2TN, UK.

4. Centre for Microscopy and Microanalysis, Faculty of Science, University of Queensland, Brisbane, QLD 4072, Australia.

Abstract

Heavy hydrogen gets frozen in place Hydrogen embrittlement contributes to the failure of steel in a wide variety of everyday applications. Various strategies to mitigate hydrogen embrittlement, such as adding carbides into the steel, are hard to validate because we are unable to map the hydrogen atoms. Chen et al. combined fluxing steel samples with deuterium and a cryogenic transfer protocol to minimize hydrogen diffusion, allowing for detailed structural analysis (see the Perspective by Cairney). Their findings revealed hydrogen trapped in the cores of the carbide precipitates. The technique will be applicable to a wide range of problems, including corrosion, catalysis, and hydrogen storage. Science , this issue p. 1196 ; see also p. 1128

Funder

Swiss National Science Foundation

Ministry of Education of Taiwan

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3