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The effect of a sputtered Ti-48Al-8Cr-2Ag (at.pct) coating on the oxidation resistance of the cast Ti-46.5Al-5Nb (at.pct) alloy was investigated in air at 1000~1100℃. Hot corrosion in molten 75 wt pct Na2SO4+25 wt pct K2SO4 was investigated at 900℃. The s