Patent ID: 6533875
Filing Date: 2003-03-18
Classification: C23C,Y02T

Abstract:
A method for protecting a surface of an article comprising the steps offurnishing an article made of a nickel-base alloy; providing a donor alloy comprising aluminum and at least one other element; applying the donor alloy onto a protected surface of the article, the step of applying including the steps of contacting the donor alloy to the protected surface of the article, wherein the step of contacting includes the step of forming a foam comprising the donor alloy and conducting the foam to the protected surface, and heating the article and the donor alloy to a coating temperature that is greater than about 0.7 of the absolute solidus temperature of the donor alloy but is such that the donor alloy remains in the form of a condensed phase contacting the protected surface of the article, and thereafter interdiffusing the donor alloy into the protected surface of the article.