Article with improved coating system and methods of forming the same

A method of repairing a coating on a surface of an airfoil having a leading edge, a trailing edge, a pressure side, and a suction side, the method comprising:

• stripping any coating from the surface of the airfoil;
• forming a platinum-group metal layer on the surface of the airfoil along at least a portion of the trailing edge;
• and
• forming an aluminide coating over the surface of the airfoil of the leading edge, the trailing edge, the pressure side, and the suction side.

A method of forming a coating system on a surface of an airfoil having a leading edge, a trailing edge, a pressure side, and a suction side, the method comprising:

• forming a platinum-group metal layer on a first region of the surface of the airfoil leaving a second region substantially free from platinum;
• heat treating the platinum-group metal layer;
• thereafter, forming a bond coating over at least a portion of the second region substantially free from platinum on the surface of the airfoil;
• thereafter, forming an aluminide coating over the entire surface of the airfoil.