• Title/Summary/Keyword: Galvanic currrent density

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The Study on the Galvanic Corrosion of Al-alloy for Heat Exchanger (Al합금 열교환기의 전지작용부식에 관한 연구)

  • LIM, U-Jo;LEE, Eun-Jeong
    • Journal of Fisheries and Marine Sciences Education
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    • v.15 no.1
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    • pp.115-122
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    • 2003
  • Generally, material for radiator of automobile is composed of Al-alloy, but part of radiator material is still composed of Cu. Specially, Al-alloy replaces Cu and Cu-alloy as cooling and heating system material for light weight. Therefore, galvanic electronic cell is formed between Al-alloy and Cu for automobile radiator material, and Al-alloy corrosion is accelerated. So, in this study, galvanic corrosion test of Al-alloy coupling with Cu was carried out in distilled water, tap water, polluted environment and non-freezing solution. And thus corrosion potential and galvanic currrent density of Al-alloy coupling with Cu is investigated.