Ti-90Al (in at.%) coatings were deposited on Ti-45Al-8Nb alloy at two different temperatures, 300 and 540 °C. The coating sputtered at 300 °C consisted of Al and TiAl₃ with columnar grain structure. The morphology, chemical composition and microstructure of the coating sputtered at 540 °C were strongly dependent on the substrate microstructure. The two coating variants formed oxidation-resistant Al₂O₃ scales during oxidation. The special morphological features of the coatings make them interesting for geometrically structuring the surfaces to provoke the lotus effect.