Use of optical methods of nondestructive control for diagnostics of damage sources of turbojet engine blades

The paper considers the possibility of determining the material of the object that caused damage to the turbine blade of the aircraft by optical methods with minimal impact on the blade. Experimental studies of the registration of emission spectra of residual quantities of duralumin and iron on a titanium substrate are presented. It is shown that the emission lines of these substances can be distinguished against the background of the substrate spectrum.