Patent ID: 7655321

Claim:
A component having a corrosion-resistant and/or oxidation-resistant coating, comprising a component having a substrate composition based on nickel, the component having a substrate surface; a platinum-aluminum substrate area formed by precipitating platinum (Pt) and aluminum (Al) on the substrate surface, the platinum-aluminum substrate area having an inner zone and an outer zone, wherein: the outer zone including a two-phase structure or duplex structure including finely dispersed platinum-aluminum deposits in a nickel-based mixed crystal, and the inner zone including a single-phase structure of a nickel-based mixed crystal, and the inner zone is located between the substrate surface of the component and the outer zone, wherein the outer zone having the two-phase structure or duplex structure has finely dispersed, globulitic PtAl 2 deposits between 0.1 μm and 3.0 μm in size in a mixed crystal of β-NiAl, the proportion of the two-phase structure or duplex structure being between 2.0% by volume and 40.0% by volume of the outer zone, and the aluminum proportion in the mixed crystal being greater than 20.0% by weight.