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Improvement in corrosion resistance of friction stir welded aluminum alloys with micro arc oxidation coatings
Published in
2008
Volume: 58
   
Issue: 11
Pages: 998 - 1001
Abstract
Micro arc oxidation (MAO) coatings were applied on friction stir welds of aluminum alloys to improve their corrosion resistance. Uncoated and MAO coated welds were subjected to salt spray corrosion. Studies revealed severe corrosion in uncoated welds, particularly in their thermomechanically affected and heat-affected zones. MAO-coated welds showed no signs of corrosion. The results suggest that the corrosion resistance of friction stir welded aluminum alloys can be substantially improved by applying MAO coatings. © 2008 Acta Materialia Inc.
About the journal
JournalScripta Materialia
ISSN13596462
Open AccessNo
Concepts (8)
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    Aluminum alloys
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    Ceramic coatings
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    Thermal effects
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    Welds
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    Friction stir welding
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    MICRO ARC OXIDATION (MAO) COATINGS
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    SALT SPRAY CORROSION
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    Corrosion resistance