Patent ID: 8343573

Claim:
A process for repairing a component, a region of the component near the surface has damaged locations, comprising: applying a coating material to the component including the region in a form of a plurality of particles by cold spraying; and heating the component after the application of the coating, wherein the damaged location of the region near the surface contains a degradation of a microstructure whereby that at least a specific microstructural portion falls below a required concentration, wherein the coating material has a concentration of the specific microstructural portion which exceeds the required concentration, and wherein after the heating, the specific microstructural portion of the coating material diffuses into the component including the damaged locations with the result that the entire component includes the required concentration, wherein the specific microstructural portion is present in a first plurality of particles which are provided with a casing where the specific microstructural portion is aluminum or aluminum and chromium and the casing consists of a metal or a metal oxide, wherein the first plurality of particles is mixed with a second plurality of non-encased particles, and wherein the plurality of particles includes the mixture of the first plurality of particles and the second plurality of particles so that the mixture is applied to the coating and throughout the damaged locations, wherein the metal oxide is selected from the group consisting of: aluminum oxide, yttrium oxide, zirconium oxide and chromium oxide, and wherein the metal is selected from the group consisting of: cobalt, nickel or chromium, and a metal alloy of these metals.