自動車熱交換器用アルミニウム合金フィン材の犠牲陽極効果と耐食性 Sacrificial anode effect and corrosion resistance of aluminum alloy fin stock for automotive heat exchangers

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Relation between sacrificial anode effect and corrosion resistance of fin stock for automotive heat exchangers has been investigated on Al–Mn–Zn alloys by SWAAT. Corrosion depth of tube diminished, in contrast, corrosion loss of fin increased with increasing Zn content in the alloy. Total corrosion mass loss of fin stocks was separated into mass loss due to sacrificial anode and self corrosion, respectively, by immersion corrosion test. Rate of mass loss due to self corrosion to the total was 30 to 50%, independently of Zn content of fin stocks. The results were discussed with electrochemical polarization curves. It was concluded that corrosion loss of fin stock is minimized by the optimization of Zn content according to necessary sacrificial anode effect.

収録刊行物

  • 軽金属  

    軽金属 58(7), 279-284, 2008-07-30 

    The Japan Institute of Light Metals

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各種コード

  • NII論文ID(NAID)
    10021989354
  • NII書誌ID(NCID)
    AN00069773
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    04515994
  • NDL 記事登録ID
    9602340
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-284
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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