Improving the corrosion resistance of micro-arc oxidation coated Mg–Zn–Ca alloy

Abstract

Large amount of micro-pores formed in MAO coatings were interconnected and sealed.

Ag-containing antibacterial self-healing micro-arc oxidation coatings on Mg–Zn–Sr alloys

“…Before the micro-arc oxidation treatment, each sample was sequentially polished with SiC metallographic sandpaper of 400, 600, 800, 1000#, rinsed with deionized water, and finally degreased with acetone and blown dry with dryer. The composition and concentration of the electrolytes was designed based on our previous experiments [44]. The composition of the electrolyte is shown in Table 1.…”

Lithium nitrate salt-assisted CO2 absorption for the formation of corrosion barrier layer on AZ91D magnesium alloy

“…Protective surface coatings are still considered the most costeffective way to improving the corrosion resistance of Mg alloys without compromising the benecial mechanical properties obtained through alloying. Various coating approaches have been examined for Mg and Mg alloys, including superhydrophobic coatings, [20][21][22] plasma electrolytic oxidation and anodization, [23][24][25][26] inorganic chemical and uoride coatings, [27][28][29][30] cold spray coatings [31][32][33][34] or polymer coatings. 35,36 However, a single coating alone is insufficient to provide adequate protection for Mg surfaces in automotive body applications.…”

Preparing superhydrophobic nanocomposite coating with SiO2 nanoparticles on magnesium alloy

“…Magnesium (Mg) alloys have attracted increasing attention due to their excellent properties [1][2][3]. In particular, the low density recently makes them very popular in the areas of aerospace, automobile manufacturing, and mobile phone, considering the severe environmental pollution and scarce energy resources [4,5].…”