Abstract: An outer platform leading edge cooling system includes a radially outer platform having a platform leading edge; a hollow cooling channel is defined extending generally longitudinally along the platform leading edge of the radially outer platform; an inlet port located in a radially outer end region of the platform leading edge being fluidly coupled with the hollow cooling channel; and the hollow cooling channel comprising an outlet conduit extending from a cooling channel exit, the outlet conduit being connected in fluid flow communication with a trailing edge cavity.

Abstract: A gas turbine engine component includes a substrate having first surface and a second surface disposed opposite the first surface, a plurality of holes extending through the substrate from the first surface to the second surface, the holes defined by a plurality of respective walls each extending from the first surface to the second surface, a metallic bond coat disposed on the first surface, and an aluminide coating disposed on the first surface, the second surface, and the walls. The metallic bond coat is disposed between the first surface and the aluminide coating and the walls are free of the metallic bond coat.

Abstract: A gas turbine engine component includes a substrate having first surface and a second surface disposed opposite the first surface, a plurality of holes extending through the substrate from the first surface to the second surface, the holes defined by a plurality of respective walls each extending from the first surface to the second surface, a metallic bond coat disposed on the first surface, and an aluminide coating disposed on the first surface, the second surface, and the walls. The metallic bond coat is disposed between the first surface and the aluminide coating and the walls are free of the metallic bond coat.