Anodic films containing polyaniline and nanoparticles for corrosion protection of AA2024T3 aluminium alloy

Environmentally friendly sol - gel-based anticorrosive coatings on aluminum alloy 2024

“…Electrolytes used were 3.5% NaCl solutions. corrosion current density of one order of magnitude is observed in the protected alloy, that is important for the corrosion protection of the alloy and is very similar to that presented by electropolymerized polyaniline coatings deposited on AA2024 [28,29] , and on AA3004 [30] . Besides, a negative change in the corrosion potential of 140 mV is also observed.…”

Study on anodic oxidation process and property of composite film formed on Ti–10V–2Fe–3Al alloy in SiC nanoparticle suspension

“…Among these technologies, anodic oxidation is widely applied owing to its low cost and simple operation. Compared to the ordinary oxide films, composite oxide films of aluminum, magnesium and titanium alloys possess much better properties, so they have been studied increasingly [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21]. Aliofkhazraei et al added Si 3 N 4 and Al 2 O 3 nanoparticles to electrolyte generating composite coatings which improved wear resistance of titanium substrate [6,16].…”

“…Aliofkhazraei et al added Si 3 N 4 and Al 2 O 3 nanoparticles to electrolyte generating composite coatings which improved wear resistance of titanium substrate [6,16]. Zubillaga et al formed a layer containing TiO 2 nanoparticles on AA2024T3 aluminum to improve its barrier protection [7]. Jin et al added Fe micro-grains into the electrolyte producing coatings which were much denser and harder and improved the wear resistance [15].…”

Enhanced tribological behavior of anodic films containing SiC and PTFE nanoparticles on Ti6Al4V alloy

“…In recent years, many investigations of composite oxidation films with nanoparticles have been taken on aluminum alloys [7][8][9][10][11][12][13][14][15]. Some investigations reveal that organic polymer such as PTFE [8][9][10] and hard ceramic materials such as SiC and ZrO 2 [11][12][13][14][15] can significantly improve the tribological property of oxide films. The reason that composite films containing organic polymer or ceramic nanoparticles shows enhanced tribological property is that organic polymer have a self-lubrication property [16] and ceramic nanoparticles can improve the hardness [17].…”