Electrochemical polarization characteristics of aluminum alloys in dilute NaCl solution

DOI Web Site 3 Citations
  • TOHMA Ken
    Technical Research Laboratory, Mitsubishi Aluminum Co. Ltd.
  • TAKEUCHI Yo
    Technical Research Laboratory, Mitsubishi Aluminum Co. Ltd.

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  • 希薄NaCl水溶液におけるアルミニウム合金の電気化学的分極挙動
  • キハク NaCl スイヨウエキ ニ オケル アルミニウム ゴウキン ノ デンキ

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The eletrochemical anodic polarization measurement and anodic dissolution test in a solution containing 20ppm Cl- are carried out on aluminum, Al-Mg and Al-Mn alloys to examine pitting corrosion characteristics. The anodic polarization characteristics are considerably affected by stirring the solution, which has a suppression effect on pitting corrosion. Both the current density and stirring the solution in the anodic dissolution test have an effect on the pitting corrosion. The anodic dissolution test is applicable to promote corrosion testing in this solution, if an appropriate current density is used.

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