Increasing wear and corrosion resistance of steel products by combined laser thermomechanical treatment

A technique is presented for hardening metal products, in particular, the main tools (hammers) and cases of core drilling bits made steel 30HGSA, using thermomechanical surface treatment according to a separate scheme. The method combined laser used study consists use shot peening followed by heat treatment. Its makes it possible increase operational properties their wear corrosion resistance. Based on results theoretical experimental studies, paper substantiates features dynamic plastic deformation analysis impact during peening. advantages without melting are presented. Experimental research methods proposed determining structural-phase composition, structure layer, hardness microhardness hardened zones 30HGSA. range rational modes thermal has been determined. device testing samples resistance developed. Methods assessing tribological contact interaction materials under quasi-static loading conditions. It concluded that technological 30HGSA allow increasing depth layer ~1.5 times compared In addition, they provide ~5400 MPa, which ~2.5 higher than base material