Miao XIAOJI, Sun FEI, Jing HU; Kinetics and effect of thermal oxidation on TA2; Advanced NanoMaterials and Technologies for Energy Sector; 2017:1(2):90-97

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Miao XIAOJI, Sun FEI, Jing HU; Kinetics and effect of thermal oxidation on TA2; Advanced NanoMaterials and Technologies for Energy Sector; 2017:1(2):90-97

Commercially pure titanium (CP-Ti) TA2 samples were subjected to thermal oxidation (TO) treatment at a temperature range of 500℃~850℃ for 210min. The oxidizing kinetics was analyzed, and the TO treated specimens were characterized by scanning electron microscopy (SEM), X-ray diffractometer (XRD), microhardness tester and immersion test. The results showed that the TO kinetics curves at 600 - 800℃ followed parabolic rate law. And thermally oxidized samples exhibit rutile TiO2 on the surface, the intensity of the rutile TiO2 become stronger with the TO temperature. TO treatment can significantly improve the surface hardness and corrosion resistance; meanwhile, it was found that the sample thermally oxidized at 700℃ presented the optimal performance.