A CORROSION STUDY OF LASER-CUT EDGES OF ALUMINUM AND AL-3MG ALLOY USING CMT (CORROSION MEASUREMENT BY TITRATION) AND EC (ELECTROCHEMICAL) MEASUREMENTS

Corrosion measurements have been performed on laser-cut edges of 2 mm untreated plates and plates painted on one side of 99.5% Al and of an Al alloy containing 3% Mg. Cutting was performed with either O2 or N2 as cutting gas. Reference measurements using mechanically cut plates w ere also made.