Corrosion in automotive aluminium applications

摘要

The use of aluminium alloys, includingin automotive applications, has increasedsignificantly in recent years, and this trendis expected to accelerate due to the needfor increased mass reduction in vehicles.One issue facing the auto industry overallcentres on the corrosion of componentsand structures, including those made inaluminium. Addressing this requires aconsideration of the electrochemical processinvolved. In corrosion, metals reactby oxidation, or the loss of electrons. Theoxidized metal ions typically form compoundsof the original metal that lack therequired structural properties of the metal– including surface cosmetics.