INFLUENCE OF ISOTHERMAL OXIDATION ON CORROSION RESISTANCE OF TITANIUM IN BOVINE SERUM

Abstract

The effects of isothermal oxidation holding time on the surface properties and corrosion behavior in bovine serum of cp-Ti were studied in this paper. The isothermal oxidation was done at 700°C for 0 to 36 hours in air with natural cooling. The surface microhardness, surface roughness, wettability and polarization potentiodynamic corrosion of cp-Ti were determined. The result shows the surface microhardness, surface roughness, wettability and corrosion resistance of the cp-Ti enhanced by isothermal oxidation treatment. The presence of the oxide layer on the surface in the form of TiO2 rutile and Ti3O are responsible to enhance the surface properties and corrosion behavior.