Patent ID: 8366386

Claim:
A method of processing turbine airfoils, comprising: (a) mechanically separating first and second turbine airfoils; (b) after the said step (a), depositing a protective coating on first and second turbine airfoils, including depositing the protective coating on a pre-existing braze alloy of at least one of the first and second turbine airfoils and, prior to depositing the protective coating on first and second turbine airfoils, removing a pre-existing coating; and (c) bonding the first and second turbine airfoils together after depositing the protective coating such that there is an open throat between the first and second turbine airfoils, and at least a portion of surfaces in the open throat are coated with the protective coating, wherein the bonding includes brazing at a temperature that is lower than another temperature used to first bond the first and second turbine airfoils together prior to the mechanical separating of said step (a) to limit reactions between the protective coating and the pre-existing braze alloy.