Anti Corrosion behaviour of hybrid silane coating on AZ31 alloy in NaCl solution

摘要

Anti-corrosion properties of a silane-zeolite composite coating on magnesium substrates, have been investigated. High hydrophobicity and good adhesion performances of the coatings was observed.f Corrosion protection performance, during immersion in 3,5% NaCl solution, was evaluated by means of EIS tests. All coating formulations evidenced good barrier properties. Better durability properties have been shown by coating on hydrofluoric acid pre-treated magnesium substrate and a 60% of zeolite content.