Patent ID: 7442443
Filing Date: 2008-10-28
Classification: C22C,C23C,F16D,Y02T

Abstract:
1. A component for an aircraft brake assembly, the component comprising: a) a substrate of 17-4PH OX HT alloy having a wear surface; and b) an adherent coating of lubricious oxides comprising copper oxide, chromium oxides, and iron oxides, wherein the coating is formed from a base layer of iron oxide, chromium, nickel, and copper on the surface of the alloy, the base layer formed by heating a 17-4PH stainless steel alloy in flowing air for about two hours at about 1875° F. to 1925° F. with an air flow of about 10-30 cubic feet per hour, wherein the 17-4PH stainless steel alloy has the following composition and further comprising a chromium-iron-nickel metallic phase.