Oxidation Effects on Short-Term Creep Response in Air of Commercially Pure Titanium (CP-2 Ti)

The creep response in the air of commercially pure titanium was investigated at 550, 600, and 650 °C to assess effect oxidation on mechanical response. Experiments demonstrated that prolonged exposures high temperatures produced a marked reduction minimum rate under given applied stress. Microhardness measurements showed hardened zone formed proximity surface due oxygen penetration into metal. A simplified composite model then used describe In this model, sample consisted two zones, hard case enriched soft pure-titanium core, both creeping with similar strain rates. Calculations led an estimation dependence stress temperature for high-oxygen zone. presented here provided good description experimental data titanium, tested its air, reliable picture complex Ti alloys.