Critical Issues for Chrome-free Pretreatment of Aluminium Alloys
Critical Issues for Chrome-free Pretreatment of Aluminium Alloys
Critical Issues for Chrome-free Pretreatment of Aluminium Alloys
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<strong>Critical</strong> <strong>Issues</strong> <strong>for</strong> <strong>Chrome</strong>-<strong>free</strong> <strong>Pretreatment</strong> <strong>of</strong> <strong>Aluminium</strong> <strong>Alloys</strong><br />
Secondary Metal<br />
• As part <strong>of</strong> the FICARP project we examined a continuously cast alloy<br />
AA6011 made from secondary metal<br />
• The corrosion resistance <strong>of</strong> the as-fabricated sheet was poor<br />
• Removal <strong>of</strong> de<strong>for</strong>med surface layers removed the susceptibility to rapid<br />
fili<strong>for</strong>m corrosion but not copper or impurity driven fili<strong>for</strong>m corrosion<br />
• A high resistance to fili<strong>for</strong>m corrosion was achieved using a flame spray<br />
pretreatment to enhance adhesion<br />
International Conference on Environmental friendly <strong>Pretreatment</strong>s fo <strong>Aluminium</strong> and other Metals, Oslo, Norway, June 16-18, 2004
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