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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Hydrogen-induced superabundant vacancies in electrodeposited Fe-C alloy films
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Hydrogen-induced superabundant vacancies in electrodeposited Fe-C alloy films

机译：氢在电沉积Fe-C合金膜中产生的过剩空位

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摘要

Fe-C alloy films containing supersaturated C and H were prepared by electrodeposition, and investigated for the hydrogen behavior in annealing processes utilizing X-ray diffraction and thermal desorption spectroscopy. The H content x(H) (x(H) = H/Fe) in the films increased from about 0.031 in pure Fe to about 0.36 in Fe-C alloy (x(C) = C/Fe = 0.073) in proportion to the C content. The lattice contraction of about 0.2% was observed in pure Fe films, whereas the lattice expansion increasing with C content was observed in Fe-C alloy films. Both the lattice contraction of the Fe films and the lattice expansion of the Fe-C alloy films were decreased as H was desorbed during heat treatments. The atomistic structure of vacancy-hydrogen and vacancy-carbon-hydrogen clusters in Fe-C alloy films is discussed, based on these experimental results. (C) 2014 Elsevier B.V. All rights reserved.
机译：通过电沉积制备包含过饱和碳原子和氢原子的Fe-C合金膜，并利用X射线衍射和热脱附光谱研究退火过程中的氢行为。膜中的H含量x（H）（x（H）= H / Fe）从纯铁中的约0.031增加到铁碳合金中的约0.36（x（C）= C / Fe = 0.073） C内容。在纯Fe膜中观察到约0.2％的晶格收缩，而在Fe-C合金膜中观察到晶格膨胀随C含量增加。 Fe的晶格收缩和Fe-C合金膜的晶格膨胀都随着热处理过程中H的解吸而降低。基于这些实验结果，讨论了Fe-C合金薄膜中空位氢和空位碳氢原子团的原子结构。 （C）2014 Elsevier B.V.保留所有权利。

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