This paper studies the changes in chemical composition of the thin oxide surface films induced by heating in air at 200oC for time intervals from 5 minutes up to 60 minutes on the freshly polished commercial AZ31 and AZ61 alloys with a view to better understanding their protective properties. This thermal treatment resulted in the formation of layers enriched in metallic aluminium at the interf...

Possible relations between the native oxide film formed spontaneously on the AZ31 and AZ61 magnesium alloy substrates with different surface finish, the chemistry of the outer surface of the conversion coatings that grows after their subsequent immersion on saturated aqueous NaHCO₃ solution treatment and the enhancement of corrosion resistance have been studied. The significant increase in the ...

The overly-fast degradation rates of magnesium-based alloys in the biological environment have limited their applications as biodegradable bone implants. In this study, rare earth element yttrium (Y) was introduced into AZ61 magnesium alloy (Mg-6Al-1Zn wt %) to control the degradation rate by laser rapid melting. The results showed that the degradation rate of AZ61 magnesium alloy was slowed do...

Commercial purity Mg and Mg-alloy AZ61 were exposed at open circuit potential under anodic polarization in two ionic liquids containing 10 wt% of water, formed by acetate anion methylpyrrolidinium cation, substituted with either aliphatic (ILA) or etheric (ILE) chain. Hydrogen evolution strongly increased (negative difference effect, NDE) ILA, but not ILE. In both electrolytes Mg(OH)2-film on A...

Nowadays metal matrix composite materials are preferable in automotive and aerospace industries due to their mechanical properties essentially attractive strength weight ratios. However, availability use is limited because of manufacturing method difficulty process extravagancy. The aim this research was fabricate hybrid through a novel approach thermo-mechanical called friction stir consolidat...