Patent ID: 7442417
Filing Date: 2008-10-28
Classification: C23C,F01D,F05C,F05D,Y02T,Y10T

Abstract:
1. A method for reaction control coating, comprising the steps of: applying a reaction control material to a surface of an Ni-base superalloy before applying aluminum diffusion coating to the Ni-base superalloy, wherein the reaction control material is an alloy or solid solution that consists of only elements selected from the group consisting of Co and Ru, and the alloy or solid solution contains Co that exceeds 0 at. % and is 10 at. % or less and Ru that is at 90 at. % or more and is less than 100 at. %, or contains from 50 to 80 at. % of Co and from 20 to 50 at. % of Ru; and applying the aluminum diffusion coating to the Ni-base superalloy.