Both TiAl and Ti 24Al 14Nb 3V suffered severe hot corrosion. The TiAlCr coatings remarkably improved the hot corrosion resistance due to the formation of protective Al 2O 3 scale.

• 结果表明，850 ℃时，90 %25 Na2SO4 ＋ 10 %25 K2SO4 中Ti50Al 和Ti?24Al?14Nb?3V 都遭受严重热腐蚀。