For use at elevated temperatures, gamma-TiAl alloys require protection against the oxidizing environment. In the present study metallic Ti-Al-Cr and Ti-Al-Ag coatings were tested in air at 750degreesC up to 2000 h. Both coatings provided adequate oxidation protection under isothermal and cyclic conditions. Microstructure investigations revealed formation of protective alumina layer at the oxide/coating interface and limited interdiffusion processes. Thermal barrier coatings deposited by EB-PVD demonstrated very promising lifetime results at 850 and 900degreesC, while at 950degreesC rapid oxidation of the Ti-45Al-8Nb base alloy led to early spallation of the ceramic top coating. Oxidation of the base alloy at all temperatures leads to a fairly complex setup of the oxide scale. Adjacent to the metal/oxide interface nitrides form that might affect oxide scale fort-nation.