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| Abstract No.: |
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Scheduled at:
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Thursday, September 29, 2011, Saal C2.2 4:00 PM
Corrosion Protection 3
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| Title: |
Local corrosion protection of joints by low pressure cold spray
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| Authors: |
Volf Leshchynsky* / University of Windsor, Canada
Elena Maeva / Institute for Diagnostic Imaging Research, Canada
Dmitry Dzhurinskiy/ Institute for Diagnostic Imaging Research, Canada
Roman Maev/ Institute for Diagnostic Imaging Research, Canada
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| Abstract: |
The study of corrosion protection of magnesium, aluminum and titanium becomes increasingly important as the use of these alloys increases rapidly in the automotive and aerospace industries due to their advantages of light-weight, adequate mechanical properties and moderate cost. Corrosion, however, limits the application of magnesium and aluminum alloys. Fasteners, spot welds of dissimilar materials and their galvanic corrosion is of major concern in automotive applications.The paper presents first results of Low Pressure Cold Spray (LPCS) of Al based coatings for corrosion protection. The corrosion protection provided by these coatings was evaluated by electrochemical measurements (polarization curves, electrochemical impedance spectroscopy) in 1M NaCl electrolyte. The microstructures and electrochemical behavior of the coated joints were investigated. The electrochemical corrosion mechanisms of the coatings and microstructure were discussed.
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