Effects of potential on hydrogen absorption and desorption behaviors of titanium in neutral fluoride solutions

Katsutoshi Takashima, Ken'ichi Yokoyama*, Kenzo Asaoka, Jun'ichi Sakai

*この研究の対応する著者

    研究成果査読

    8 被引用数 (Scopus)

    抄録

    The effects of potential on the hydrogen absorption and desorption of commercial pure titanium immersed in neutral 2.0% and 0.2% NaF solutions for 24 h have been investigated by hydrogen thermal desorption analysis. Hydrogen absorption occurs in both solutions under less noble potentials than -1.2 V versus a saturated calomel electrode. The amount of absorbed hydrogen increases with decreasing applied potential. Under the same applied potential, the amount of hydrogen absorbed in the 2.0% NaF solution is larger than that in the 0.2% NaF solution. Hydrogen thermal desorption is observed in the temperature range from 250-300 to 700 °C. For the 2.0% NaF solution, compared with the 0.2% NaF solution, the amount of hydrogen desorbed in the high temperature range is large. The hydrogen desorption behavior for neutral NaF solutions under the applied potential is not necessarily consistent with that for acidulated phosphate fluoride solutions without the applied potential reported previously.

    本文言語English
    ページ(範囲)203-207
    ページ数5
    ジャーナルJournal of Alloys and Compounds
    431
    1-2
    DOI
    出版ステータスPublished - 2007 4 4

    ASJC Scopus subject areas

    • 金属および合金

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