Evaluation of hydrogen absorption properties of Ti-0.2 mass% Pd alloy in fluoride solutions

Ken'ichi Yokoyama, Toshio Ogawa, Kenzo Asaoka, Jun'ichi Sakai

    研究成果: Article

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    The hydrogen absorption properties of Ti-0.2 mass% Pd (Ti-0.2Pd) alloy in 2.0% and 0.2% acidulated phosphate fluoride (APF) and neutral 2.0% NaF solutions (25 °C) has been evaluated by hydrogen thermal desorption analysis. During the early stage of immersion (120 h) in the 2.0% APF solution, the amount of absorbed hydrogen was lower than 500 mass ppm. A thermal desorption of hydrogen primary appearing with a peak at 500-600 °C and a broad desorption ranging from 100 to 400 °C were observed. In the 0.2% APF solution, the amount of absorbed hydrogen saturated at 100-200 mass ppm; the thermal desorption of hydrogen appeared with a single peak at 550 °C. In the 2.0% NaF solution, hydrogen absorption was negligible even after 1000 h of immersion, although corrosion pits were observed. The results of the present study suggest that the hydrogen absorption of Ti-0.2Pd alloy, as compared with commercial pure titanium, is suppressed in fluoride solutions.

    元の言語English
    ページ(範囲)227-233
    ページ数7
    ジャーナルJournal of Alloys and Compounds
    400
    発行部数1-2
    DOI
    出版物ステータスPublished - 2005 9 1

    ASJC Scopus subject areas

    • Metals and Alloys

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