Corrosion Behavior of Zn - 5 mass% Al Alloy

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概要

• 論文の詳細を見る

• The corrosion resistance of hot dip Zn-Al alloy coated steel sheet is shown to be improved through changing a cooling rate after hot dipping. The Zn-5 mass% Al alloy and Zn-5 mass% Al - Mischmetal alloy which were melted and cooled to room temperature with five different methods were corrosiontested in stagnant 2% HCI and 3% NaCl aqueous solution at 308 K. In 2% HCI solution, the corrosion behavior of Zn - 5 mass% Al alloy strongly depended on a cooling rate, while that of Zn - 5 mass% Al - Mischmetal alloy was almost independent of the cooling rate. The mischmetal addition makes the cooling rate dependence of the corrosion behavior of Zn - 5 mass% Al alloy less pronounced. In 3% NaCl solution, the corrosion behaviors of Zn - 5 mass% Al alloy and Zn - 5 mass% Al - Mischmetal alloy depended on the cooling rate complicatedly. A white product was formed on each sample after corrosion- testing in 3% NaCl solution. By adding mischmetal to the Zn - 5 mass% Al alloy, a pitting corrosion in 3% NaCl solution tended to be suppressed.

• 長崎大学工学部,Faculty of Engineering, Nagasaki Universityの論文

著者

• Uchiyama Y

  Nagasaki Univ. Nagasaki Jpn

• Uchiyama Y

  Osaka Univ. Graduate School Of Medicine Osaka Jpn

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• Corrosion Behavior of Zn - 5 mass% Al Alloy

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