Non-destructive testing of civil aircraft turbojet engine blades with LIBS
D.V. Apeximov, A.V. Klimkin, A.N. Kurjak, M.V. Trigub
V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Science, Tomsk, Russia
Keywords: non-destructive testing, laser induced breakdown spectroscopy, structural material deformation
Abstract
We present the results of model experiments on recording the spectral characteristics of the emission glow of residual amounts of a substance on a blade of an aircraft turbojet engine after the mechanical impact of a foreign object. The spectra were measured by laser-spark spectroscopy, which made it possible to distinguish the emission lines of this substance against the spectrum of the blade material. This non-destructive testing method makes it possible to quickly diagnose the blades at the site of the aircraft inspection before a flight and to draw conclusions about possible destruction of the fuselage and the danger of the damage.
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