鉄表面上のＺｎ‐Ｎｉ合金めっき皮膜の腐食

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書誌事項

タイトル別名
  • Corrosion of Zn-Ni alloy films electroplated on iron.
  • テツ ヒョウメンジョウ ノ Zn Ni ゴウキン メッキ ヒマク ノ フショク
公開日
1989
DOI
  • 10.4139/sfj.40.1126
公開者
一般社団法人 表面技術協会

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説明

The corrosion behavior of inhomogeneous Zn-Ni alloy films electroplated on iron substrates specimens has been studied. Zn-Ni alloy was electroplated in a Hull cell, and immersion tests were carried out in 3% NaCl solutions and in pH6 buffer solutions. In both solutions corrosion took place heterogenously and caused grooves. In the 3% NaCl solutions, both red rust and white rust were formed, the red rust appearing only in a thick layer region, while in the buffer solutions, rust formation was not observed. Corrosion potential and pH at various positions on the specimen were measured. In the 3% NaCl solutions, pH changed markedly depending on position, while in the buffer solutions, the corrosion potential changed. This indicates that a macroscopic corrosion cell is formed along the specimen, and that the buffer capacity of the solutions affects the corrosion behavior.

収録刊行物

  • 表面技術

    表面技術 40 (10), 1126-1130, 1989

    一般社団法人 表面技術協会

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