Comparison Between the Oxidation Behaviors of Ti6242S, Ti6246, TiXT Alloys, and Pure Titanium

Isothermal oxidation tests were performed on Ti6242S (Ti—6% Al—2% Sn—4% Zr—2% Mo, 0.08% Si), Ti6246 Zr—6% 0.05% TiXT (Ti—0.45% Si) alloys and pure titanium in laboratory air at 560 °C, 600 °C 650 for 1000 h to compare their behaviors. This study aims highlight the role of molybdenum silicon resistance alloys. The results show that 6 wt.% Mo does not substantially change behavior compared alloy containing only 2 Mo. Meanwhile, presence 0.45 Si seems be clearly beneficial resistance, reducing parabolic rate constant by a factor larger than as titanium.