Journal
Scientific and technical journal «Priborostroenie»
UDK53.06
Issue:3 (59)
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METHOD OF TITANIUM SURFACE COLOR MODIFICATION WITH NANOSECOND LASER PULSES
Annotation
Laser-induced coloration of titanium due to its surface oxidation under exposure to nanosecond pulses from 1.06 μm fiber ytterbium laser is proposed. Various colors on the titanium surface may be formed by variation of laser irradiation regimes (e. g., changing overlapping), the irradiated surface color is a function of viewing angle. Presented results of spectrophotometric study of processed samples demonstrate dependence of colorimetric characteristics of the surface on laser pulse parameters and on the radiation incidence angle. Increase in the light incidence angle is found to retain the spectrum appearance but causes a parallel shift of the spectral distribution to ultraviolet region. The proposed method of oxide films formation may find an application in industry to create images of controllable color on titanium surface.
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