Aluminide coatings is one key for protecting hot sections of turbine engines against high temperature oxidation at present

which will also be an essential technique for developing advanced turbine engines in the near future. Conventional techniques for preparation of the coatings are commonly based on chemical vapor methods

which are difficult for obtaining high performance aluminide coatings except for low efficiency

chemical hazards release that induces air pollution and equipment corrosion. High efficient and “green” techniques would be future trends for obtaining advanced aluminide coatings. High efficiency has been achieved by a strategy of mechanical energy-assisted aluminizing in recent years. In the mean time

“green” techniques have been developed by a strategy of combining physical vapor deposition and post high temperature diffusion treatment. By combining the two strategies

high efficient and “green” aluminizing can be achieved

using ion bombardment energy generated from ionized physical vapors in vacuum. It would be a new effective solution to preparation of advanced aluminide coatings.