Turbine component coating processes include applying a malleable masking material to one or more apertures of one or more fluid flow passages within a turbine component surface and then applying a first coating over the malleable masking material and on the turbine component surface. The turbine component coating processes further include locally applying a local masking material to the one or more apertures of the one or more fluid flow passages and then applying a second coating over the local masking material and on the first coating.