The Effect of Stoichiometry on Hydrogen Embrittlement of Ordered Ni3Fe Intermetallics

The effects of Fe stoichiometry on hydrogen embrittlement and hydrogen diffusion in ordered Ni3Fe intermetallics were investigated. The experimental results show that the ordered Ni3Fe alloy with the normal stoichiometry has the lowest mechanical property, the highest susceptibility to hydrogen, and...

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Main Authors: Y. X. Chen, Tao Chen, Haiyan Qian
Format: Article
Language:English
Published: Wiley 2015-01-01
Series:Advances in Materials Science and Engineering
Online Access:http://dx.doi.org/10.1155/2015/504207
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author Y. X. Chen
Tao Chen
Haiyan Qian
author_facet Y. X. Chen
Tao Chen
Haiyan Qian
author_sort Y. X. Chen
collection DOAJ
description The effects of Fe stoichiometry on hydrogen embrittlement and hydrogen diffusion in ordered Ni3Fe intermetallics were investigated. The experimental results show that the ordered Ni3Fe alloy with the normal stoichiometry has the lowest mechanical property, the highest susceptibility to hydrogen, and the highest ability of catalytic reaction. The mechanical properties, the susceptibility to hydrogen embrittlement, and the amount of adsorbed hydrogen of the ordered Ni3Fe alloy are dependent of degree of order of the alloy. The apparent hydrogen diffusion coefficient of the ordered Ni3Fe alloy is independent on degree of order of the alloy but depends on Fe stoichiometry. The activation energy of hydrogen diffusion decreased linearly with Fe stoichiometry for the ordered Ni3Fe alloy.
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institution Kabale University
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publishDate 2015-01-01
publisher Wiley
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series Advances in Materials Science and Engineering
spelling doaj-art-d4d88793ad4a4aac91446e5132ab8dea2025-02-03T05:52:04ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422015-01-01201510.1155/2015/504207504207The Effect of Stoichiometry on Hydrogen Embrittlement of Ordered Ni3Fe IntermetallicsY. X. Chen0Tao Chen1Haiyan Qian2Laboratory for Microstructure, Shanghai University, Shanghai 200072, ChinaInstitute of Materials Science, Shanghai University, Shanghai 200072, ChinaInstitute of Materials Science, Shanghai University, Shanghai 200072, ChinaThe effects of Fe stoichiometry on hydrogen embrittlement and hydrogen diffusion in ordered Ni3Fe intermetallics were investigated. The experimental results show that the ordered Ni3Fe alloy with the normal stoichiometry has the lowest mechanical property, the highest susceptibility to hydrogen, and the highest ability of catalytic reaction. The mechanical properties, the susceptibility to hydrogen embrittlement, and the amount of adsorbed hydrogen of the ordered Ni3Fe alloy are dependent of degree of order of the alloy. The apparent hydrogen diffusion coefficient of the ordered Ni3Fe alloy is independent on degree of order of the alloy but depends on Fe stoichiometry. The activation energy of hydrogen diffusion decreased linearly with Fe stoichiometry for the ordered Ni3Fe alloy.http://dx.doi.org/10.1155/2015/504207
spellingShingle Y. X. Chen
Tao Chen
Haiyan Qian
The Effect of Stoichiometry on Hydrogen Embrittlement of Ordered Ni3Fe Intermetallics
Advances in Materials Science and Engineering
title The Effect of Stoichiometry on Hydrogen Embrittlement of Ordered Ni3Fe Intermetallics
title_full The Effect of Stoichiometry on Hydrogen Embrittlement of Ordered Ni3Fe Intermetallics
title_fullStr The Effect of Stoichiometry on Hydrogen Embrittlement of Ordered Ni3Fe Intermetallics
title_full_unstemmed The Effect of Stoichiometry on Hydrogen Embrittlement of Ordered Ni3Fe Intermetallics
title_short The Effect of Stoichiometry on Hydrogen Embrittlement of Ordered Ni3Fe Intermetallics
title_sort effect of stoichiometry on hydrogen embrittlement of ordered ni3fe intermetallics
url http://dx.doi.org/10.1155/2015/504207
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