DOI: 10.22184/1993-7296.FRos.2022.

The article presents the results of metallographic and tribotechnical studies of 40Kh steel samples with laser hardening from liquid and solid states. On the basis of the regression analysis carried out, regularities were obtained for changing the depth and width of the heat-affected zones with varying frequencies of transverse oscillations of the beam, processing speed, and its defocusing. The possibilities of using scanning devices of the resonant type for laser heat treatment and alloying of steels have been expanded. An analysis of the results of tribotechnical tests showed a significant decrease in friction coefficients, an increase in wear resistance and load capacity of the contact compared to the original steel.


Разработка: студия Green Art