METHOD OF LASER PROCESSING OF SURFACE OF METALS AND ALLOYS Russian patent published in 2025 - IPC C21D1/09 C22F3/02 B23K26/16 B82Y30/00 

FIELD: performing operations.

SUBSTANCE: invention relates to treatment of surfaces of metal materials and can be used in various industries, particularly in medicine for improving biocompatibility and survival rate of implants. Method for laser treatment of surface of metals and alloys involves exposure of laser radiation on surface of material in air atmosphere, at that, laser processing of metal material surface is performed by pulsed short-wave ultraviolet radiation in spectral range of 193-355 nm with energy density of 0.05-0.25 J/cm, average power of laser radiation of 0.1-0.5 W, by varying the laser exposure time within 10-300 s or the scanning speed of 125-1250 mcm/s.

EFFECT: increased degree of hydrophilicity of surface of metal materials, characterized by contact angle of wetting, due to increased value of free surface energy (its polar component), without significant change of surface morphology, as well as phase composition of material.

1 cl, 6 dwg, 4 tbl, 2 ex