An experimental method for coating–substrate interface investigation

Investigations of coated surfaces indicate that in many cases the coating–substrate interface is the weakest part of the coated component, with the coating-to-substrate adhesion being used to evaluate the strength of the coating–substrate interface. While modeling of the coated surface depends on coating and substrate material properties, which are not easy to determine, standard experimental methods do not allow a direct study of the interface. m of the present paper is to describe a supplementary method for coating–substrate interface investigation, which can provide further information on the interface properties.