Hydrogen-Vacancy Interactions in Fe-C Alloys
Energetics and concentrations of hydrogen-containing point defect clusters (PDCs) in Fe-C alloys are calculated and cast into a PDC dominance diagram. Because of the strong binding effects of iron vacancies on the stability of the clusters, hydrogen accumulation requires the total hydrogen and vacan...
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2010
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| Online Access: | http://hdl.handle.net/1721.1/51371 https://orcid.org/0000-0001-5735-0560 https://orcid.org/0000-0002-2727-0137 |
| _version_ | 1826216252132032512 |
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| author | Yip, Sidney Lau, Timothy T. Monasterio, Paul Rene Van Vliet, Krystyn J |
| author2 | Massachusetts Institute of Technology. Department of Nuclear Science and Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Nuclear Science and Engineering Yip, Sidney Lau, Timothy T. Monasterio, Paul Rene Van Vliet, Krystyn J |
| author_sort | Yip, Sidney |
| collection | MIT |
| description | Energetics and concentrations of hydrogen-containing point defect clusters (PDCs) in Fe-C alloys are calculated and cast into a PDC dominance diagram. Because of the strong binding effects of iron vacancies on the stability of the clusters, hydrogen accumulation requires the total hydrogen and vacancy concentrations to be comparable. As a result of the interplay between repulsive and attractive binding processes, PDC populations in Fe-C-H effectively decouple into the binary systems Fe-C and Fe-H. This results in significant vacancy-hydrogen PDC populations even for low total hydrogen concentrations. |
| first_indexed | 2024-09-23T16:44:45Z |
| format | Article |
| id | mit-1721.1/51371 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T16:44:45Z |
| publishDate | 2010 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/513712023-02-26T03:38:04Z Hydrogen-Vacancy Interactions in Fe-C Alloys Yip, Sidney Lau, Timothy T. Monasterio, Paul Rene Van Vliet, Krystyn J Massachusetts Institute of Technology. Department of Nuclear Science and Engineering Van Vliet, Krystyn J. Van Vliet, Krystyn J. Monasterio, Paul Rene Lau, Timothy T. Yip, Sidney Energetics and concentrations of hydrogen-containing point defect clusters (PDCs) in Fe-C alloys are calculated and cast into a PDC dominance diagram. Because of the strong binding effects of iron vacancies on the stability of the clusters, hydrogen accumulation requires the total hydrogen and vacancy concentrations to be comparable. As a result of the interplay between repulsive and attractive binding processes, PDC populations in Fe-C-H effectively decouple into the binary systems Fe-C and Fe-H. This results in significant vacancy-hydrogen PDC populations even for low total hydrogen concentrations. National Science Foundation U.S. National Defense Science and Engineering Graduate Program (TTL) 2010-02-05T15:42:22Z 2010-02-05T15:42:22Z 2009-08 2009-05 Article http://purl.org/eprint/type/JournalArticle 0031-9007 http://hdl.handle.net/1721.1/51371 Monasterio, Paul R. et al. “Hydrogen-Vacancy Interactions in Fe-C Alloys.” Physical Review Letters 103.8 (2009): 085501. (C) 2010 The American Physical Society. https://orcid.org/0000-0001-5735-0560 https://orcid.org/0000-0002-2727-0137 en_US http://dx.doi.org/10.1103/PhysRevLett.103.085501 Physical Review Letters Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society APS |
| spellingShingle | Yip, Sidney Lau, Timothy T. Monasterio, Paul Rene Van Vliet, Krystyn J Hydrogen-Vacancy Interactions in Fe-C Alloys |
| title | Hydrogen-Vacancy Interactions in Fe-C Alloys |
| title_full | Hydrogen-Vacancy Interactions in Fe-C Alloys |
| title_fullStr | Hydrogen-Vacancy Interactions in Fe-C Alloys |
| title_full_unstemmed | Hydrogen-Vacancy Interactions in Fe-C Alloys |
| title_short | Hydrogen-Vacancy Interactions in Fe-C Alloys |
| title_sort | hydrogen vacancy interactions in fe c alloys |
| url | http://hdl.handle.net/1721.1/51371 https://orcid.org/0000-0001-5735-0560 https://orcid.org/0000-0002-2727-0137 |
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