REFURBISHING OF CORRODED SUPERALLOY OR HEAT RESISTANT STEEL PARTS AND PARTS SO REFURBISHED

摘要

Renovation refers to corroded high alloyed or refractory steel parts, especially gas turbine components, such as gas turbine blades, on which corrosion products occur. In particular, the surface of such refurbished parts is cleaned by mechanical or chemical means and an aluminide protective layer is applied to the cleaned surface. Subsequently, the aluminide protective layer is removed, while at the same time removing all the corrosion products that have remained on the refurbished part.