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Hydrogen and deuterium charging of lifted-out specimens for atom probe tomography
Hydrogen embrittlement can cause a dramatic deterioration of the mechanical properties of high-strength metallic materials. Despite decades of experimental and modelling studies, the exact underlying mechanisms behind hydrogen embrittlement remain elusive. To unlock understanding of the mechanism an...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
F1000 Research Limited
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10445872/ https://www.ncbi.nlm.nih.gov/pubmed/37645172 http://dx.doi.org/10.12688/openreseurope.14176.2 |
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author | Khanchandani, Heena Kim, Se-Ho Varanasi, Rama Srinivas Prithiv, TS Stephenson, Leigh T. Gault, Baptiste |
author_facet | Khanchandani, Heena Kim, Se-Ho Varanasi, Rama Srinivas Prithiv, TS Stephenson, Leigh T. Gault, Baptiste |
author_sort | Khanchandani, Heena |
collection | PubMed |
description | Hydrogen embrittlement can cause a dramatic deterioration of the mechanical properties of high-strength metallic materials. Despite decades of experimental and modelling studies, the exact underlying mechanisms behind hydrogen embrittlement remain elusive. To unlock understanding of the mechanism and thereby help mitigate the influence of hydrogen and the associated embrittlement, it is essential to examine the interactions of hydrogen with structural defects such as grain boundaries, dislocations and stacking faults. Atom probe tomography (APT) can, in principle, analyse hydrogen located specifically at such microstructural features but faces strong challenges when it comes to charging specimens with hydrogen or deuterium. Here, we describe three different workflows enabling hydrogen/deuterium charging of site-specific APT specimens: namely cathodic, plasma and gas charging. All the experiments in the current study have been performed on a model twinning induced plasticity steel alloy. We discuss in detail the caveats of the different approaches in order to help future research efforts and facilitate further studies of hydrogen in metals. Our study demonstrates successful cathodic and gas charging, with the latter being more promising for the analysis of the high-strength steels at the core of our work. |
format | Online Article Text |
id | pubmed-10445872 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | F1000 Research Limited |
record_format | MEDLINE/PubMed |
spelling | pubmed-104458722023-08-29 Hydrogen and deuterium charging of lifted-out specimens for atom probe tomography Khanchandani, Heena Kim, Se-Ho Varanasi, Rama Srinivas Prithiv, TS Stephenson, Leigh T. Gault, Baptiste Open Res Eur Method Article Hydrogen embrittlement can cause a dramatic deterioration of the mechanical properties of high-strength metallic materials. Despite decades of experimental and modelling studies, the exact underlying mechanisms behind hydrogen embrittlement remain elusive. To unlock understanding of the mechanism and thereby help mitigate the influence of hydrogen and the associated embrittlement, it is essential to examine the interactions of hydrogen with structural defects such as grain boundaries, dislocations and stacking faults. Atom probe tomography (APT) can, in principle, analyse hydrogen located specifically at such microstructural features but faces strong challenges when it comes to charging specimens with hydrogen or deuterium. Here, we describe three different workflows enabling hydrogen/deuterium charging of site-specific APT specimens: namely cathodic, plasma and gas charging. All the experiments in the current study have been performed on a model twinning induced plasticity steel alloy. We discuss in detail the caveats of the different approaches in order to help future research efforts and facilitate further studies of hydrogen in metals. Our study demonstrates successful cathodic and gas charging, with the latter being more promising for the analysis of the high-strength steels at the core of our work. F1000 Research Limited 2022-02-21 /pmc/articles/PMC10445872/ /pubmed/37645172 http://dx.doi.org/10.12688/openreseurope.14176.2 Text en Copyright: © 2022 Khanchandani H et al. https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Method Article Khanchandani, Heena Kim, Se-Ho Varanasi, Rama Srinivas Prithiv, TS Stephenson, Leigh T. Gault, Baptiste Hydrogen and deuterium charging of lifted-out specimens for atom probe tomography |
title | Hydrogen and deuterium charging of lifted-out specimens for atom probe tomography |
title_full | Hydrogen and deuterium charging of lifted-out specimens for atom probe tomography |
title_fullStr | Hydrogen and deuterium charging of lifted-out specimens for atom probe tomography |
title_full_unstemmed | Hydrogen and deuterium charging of lifted-out specimens for atom probe tomography |
title_short | Hydrogen and deuterium charging of lifted-out specimens for atom probe tomography |
title_sort | hydrogen and deuterium charging of lifted-out specimens for atom probe tomography |
topic | Method Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10445872/ https://www.ncbi.nlm.nih.gov/pubmed/37645172 http://dx.doi.org/10.12688/openreseurope.14176.2 |
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