硫酸塩浴からのZn-鉄族金属合金電析に及ぼすチオシアン酸イオンの影響 Effect of Thiocyanate Ions on the Electrodeposition Behavior of Zn-iron-group Metal Alloys in Sulfate Baths

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抄録

The electrodepositon of Zn-iron-group metal binary alloys, which has been applied in the production of highly corrosion-resistant alloy-plated steel sheet, was conducted in sulfate baths. The current density-dependence of the alloy composition demonstrated a typical feature of an anomalous codeposition in sulfate baths. As the present authors reported previously, the alloy deposition behavior was divided with respect to the current density into four regions. The presence of thiocyanate (SCN<sup>-</sup>) ions in the baths changed the alloy deposition behavior both in lower current density region <b>I</b> where normal codeposition occurred with extremely poor current efficiency and in the region <b>II</b> where anomalous codeposition occurred with high current efficiency. The partial current efficiency of iron-group metal was found to increase in regions <b>I</b> and <b>II</b>. The boundary current density between these two regions, which was also known as the transition current density, was also found to increase. It was concluded that the catalytic action of SCN<sup>-</sup> ions served to explain well the changes in the electrodeposition behavior.

収録刊行物

  • 表面技術 = The Journal of the Surface Finishing Society of Japan

    表面技術 = The Journal of the Surface Finishing Society of Japan 48(11), 1124-1130, 1997-11-01

    The Surface Finishing Society of Japan

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各種コード

  • NII論文ID(NAID)
    10002260326
  • NII書誌ID(NCID)
    AN1005202X
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09151869
  • NDL 記事登録ID
    4334605
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-291
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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