We investigated the oxidation and nitridation of a near β-type Ti-17 (Ti-5Al-2Sn-2Zr-4Mo-4Cr) alloy with up to 1 mass% added Si. The alloys were heated in air at 923–1223 K for 518.4 ks. mass gain was determined, scales oxygen-rich α-case layer that formed analyzed. At temperatures below 1123 K, primary product rutile-type TiO2, along traces Al2O3. presence Si4+ decreased oxygen vacancy concent...
