Effect of surface condition during pre-oxidation treatment on isothermal oxidation behavior of MCrAlY bond coat prepared by EB-PVD

摘要

NiCoCrAlY bond coat was deposited on Ni-based superalloy by means of EB-PVD method. Surface treatment by means of polishing and shot-peening methods were used in order to study the effect of surface conditions on the bond coat performance at I 100 degrees C. Oxidation resistance was found to be strongly affected by surface modification during pre-oxidation treatment. (c) 2006 Published by Elsevier B.V.