INFLUENCE OF RADIO FREQUENCY ELECTROMAGNETIC FIELD ON OPTICAL CHARACTERISTICS OF CAST IRON SURFACE
Variations in spectral coefficients of specular reflection and Raman scattering spectra have been detected during exposure of a cast iron surface to the electromagnetic field of a radio wave range. The observed variations are supposed to be caused both by the field-induced changes in the surface morphological structure, density, and crystalline state and by ordering of the carbon structures accompanied with the reduction in the amount of defects. The spectral reflectometry and Raman scattering methods are shown to be applicable to nondestructive remote control of the morphological state of the cast iron surface and changes in the structure and size of its microcrystalline graphite inclusions.