TENSILE TESTS OF 10G2 STEEL SPECIMENS AFTER LASER HARDENING AND ALLOYING
Keywords:
laser hardening, alloying, steel, stretching, scanning speed, tensile strength, elongationAbstract
A study was carried out of the dependence of the characteristics of strength and ductility of samples made of structural steel 10G2 on laser hardening and alloying modes. On opposite planes of a sample with overall dimensions of 6 × 20 × 200 mm, 5 tracks were applied. Tensile tests have been carried out. It was established that the destruction of the treated samples in all cases was of a viscous nature with a satisfactory level of destructive deformations at stresses above the tensile strength of the original material. The tensile diagrams indicate a negligible effect of laser processing on the elastic modulus of the material. The results obtained can serve as a basis for studying the relationship between laser beam heating modes and the material properties of the strengthened zone.
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