Molybdate/phosphate composite conversion coating on magnesium alloy surface for corrosion protection

Corrosion resistance and chemical stability of super-hydrophobic film deposited on magnesium alloy AZ31 by microwave plasma-enhanced chemical vapor deposition

“…Magnesium and its alloys have excellent physical and mechanical properties such as low density, good electromagnetic shielding, and high strength/weight ratio [1,2]. Thus, they are expected to be applied to various industries such as the aerospace, automobile, and railway industries [3][4][5].…”

Electrodeposition of zinc on AZ91D magnesium alloy pre‐treated by stannate conversion coatings

“…Furthermore, the refractory oxide film on its surface and its thermal brittleness also makes it difficult to weld through the fusion welding, thus great efforts have been made to increase the corrosion resistance of the Mg alloy. The conventional surface treatments [2] which have been developed and used for magnesium and its alloys are named: electrochemical deposition [3][4][5][6], anodic treatment [7,8] represented by DOW method, HAE method and the like, chemical conversion coating [9][10][11][12][13][14], and in addition organic coating [15][16][17][18].…”

“…The chemical conversion treatments for magnesium alloys have been investigated extensively [7][8][9][10][11][12] and the conversion coating can provide a stable base which is also well combined with the magnesium alloys. They also offer some advantages for corrosion resistance which can be used as the pre-treatment for electrochemical deposition.…”

Influence of zinc molybdenum phosphate pigment on coatings performance studied by electrochemical methods

“…Among all the molybdate-based pigments, zinc molybdenum phosphate is one of the highest reported due to a synergistic effect between the phosphate and the molybdate ions [9,10]. According to the literature [11], this dual metal pigment provides higher degree of passivation than zinc chromate under acidic conditions but inferior under alkaline conditions.…”