Oxidation of Titanium and Ti/(TiB+TiC) Composite
Keywords:Titanium, Titanium matrix composite, Oxidation, Oxide scale
Titanium and titanium matrix composite reinforced with 10 vol. %(TiB+TiC) (10TMC) were oxidized at 700, 800 and 900 oC for 30, 50 and 70 h, and their oxidation behavior was studied. Oxidation of Ti and 10TMC in air led to the formation of rutile-TiO2 without any other oxides. The oxide scale thickened with an increase in the oxidation time and temperature. Significant growth of the rutile oxide caused thermal stresses which generated during oxidation and voids formed at the scale/matrix interface, and the oxide scales were susceptible to cracking.
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