Process of repairing a coated component

摘要

The invention relates to a process of repairing a MCrAIY-coating of an article, which has being exposed to the hot gases of, for example, a gas turbine. The MCrAIY-coating is examined and repaired only locally where it is needed and then, subsequently, on top of the MCrAIY-coating the article is aluminised and/or chromised, avoiding the stripping of the whole coating and re-coating over the entire surface of the article. This is for replenishing the coating of Al and/or Cr that become depleted during engine operation, in an easy, cost and time saving manner.