Titanium alloy having excellent high-temperature oxidation and corrosion resistance

摘要

A titanium alloy having excellent high-temperature oxidation and corrosion resistance is disclosed which comprises, by mass, Al: 0.30-1.50 %, and Si: 0.10-1.0 %. Preferably, a mass ratio Si/Al is not less than 1/3. More preferably, the titanium alloy further comprises Nb: 0.1-0.5 % by mass. The titanium alloy is useful as an exhaust system material for a vehicle or a motorbike, which enhances corrosion and high-temperature oxidation resistance, while utilizing inherent lightness and corrosion resistance of an original titanium alloy without impairing economy and workability.