実用アルミニウム合金中における水素の挙動(オーガナイズドセッション,材料と組織)

概要

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Aluminum based alloy is one of the candidate materials for the container of high-pressure hydrogen gas for fuel cell vehicle. However, since the inner surface of the container is exposed to the hydrogen gas under high pressure, hydrogen embrittlement of the material might occur due to hydrogen penetration. In the previous study, the hydrogen permeation behavior was investigated in a 6061 aluminum alloy sheet stretched and/or exposed to hydrogen gas by mean of hydrogen microprint technique. From the results obtained, the second phase particle was found to be the primary emission site of hydrogen. In this study, the same technique was applied to a 7075 aluminum alloy to investigate the difference of the kind of the second phases in the effect on hydrogen permeation.
一般社団法人日本機械学会の論文
2004-09-23