Effect of Homogenization on Anodic Film and Electrochemical Behavior of an A535 Alloy After Sealing with Stearic Sealant

Almag 35 (A535) is a commercial aluminum alloy intended for number of marine components, which mainly justified by its excellent castability and corrosionCorrosion resistance. However, the most important factor resistance formation intermetallics that can lead defects in oxide film substrate, as well activate reaction. The characteristics sealant on anodic filmAnodic were investigated this work. was subjected to homogenizationHomogenization at 400 °C 5 h improve uniformity due decreased result dissolving matrix. It also improved hardness alloy. Electrochemical measurements conducted investigate behavior. effects stearic sealing layer are discussed. decrease reduced current density (Icorr) increased potential (Ecorr), results lower rate