6000系アルミニウム合金における水素透過挙動に及ぼす組織の影響(オーガナイズドセッション,材料と組織)

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In recent years, since saving of fossil fuel and the carbon-dioxide emissions have strictly been demanded, hydrogen has attracted attention as a clean energy. Aluminum alloys have been regarded as the tank material for high-compressed hydrogen gas in fuel cell vehicles. However, since the inner surface of the tank is exposed to the hydrogen gas under high pressure, hydrogen embitterment of the material might occur because of hydrogen penetration. In this study, to approach a final goal of elucidating how hydrogen penetration and diffusion in the material take place, hydrogen permeation behavior was investigated in relation to the microstructures in 6XXX aluminum alloy sheets by mean of hydrogen microprint technique. This technique can visualize hydrogen atoms penetrating in one surface, diffusing inside the sheet and finally arriving on the other surface, utilizing pseudo-photographic reaction.
一般社団法人日本機械学会の論文
2004-09-23

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