カソード電解法を用いた水素によるMg-Al合金の劣化挙動 Hydrogen Embrittlement Behavior of Mg-Al Alloy by Cathodic Electrolysis

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It is well known that magnesium is capable of absorbing hydrogen and forming its hydride. The Mg-13 mol % Al alloy was picked up to produce a joining materials with a self-decomposition property as a new concept for metal recycling from the view points of the light metal and the low melting point. The hydrogen embrittlement behavior of this alloy was examined by using the cathodic electrolysis. The relation between the embrittlement behavior and the hydriding was investigated. The electrolysis was conducted in neutral, pH 6.0, or alkaline, pH 13.7, aqueous solution from 298 K to 353 K for 172.8 ks at potentials from the rest potential to -3.0 V (vs. Ag/AgCl sat. KCl). The following results were obtained: (i) At the lower potential in both solutions, the more Mg hydride was formed on the surface of the specimen. (ii) Many craters burst by the absorbed hydrogen were detected on the surface at the lower potentials because blisters of gaseous hydrogen were formed there. (iii) The additions of thiourea or gelatin to the neutral solution and of copper to the Mg-Al alloy accelerated the hydrogen embrittlement.

収録刊行物

  • 資源と素材 : 資源・素材学会誌 : journal of the Mining and Materials Processing Institute of Japan  

    資源と素材 : 資源・素材学会誌 : journal of the Mining and Materials Processing Institute of Japan 115(1), 59-63, 1999-01-25 

    The Mining and Materials Processing Institute of Japan

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各種コード

  • NII論文ID(NAID)
    10002469055
  • NII書誌ID(NCID)
    AN10062646
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09161740
  • NDL 記事登録ID
    4640310
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-315
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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