Research of the effect of severe plastic deformation with the following ion nitriding on the thickness and microhardness of the hardened layer of tool steel R6M5

Abstract

In this work we consider the issue of influence of initial state of tool steel P6M5 surface on thickness and microhardness of hardened layer during ion nitriding in the glow discharge. It is established that the application of intense plastic deformation torsion before ion nitriding in the glow discharge increases the rate of nitrogen diffusion deep into the tool steel R6M5, and increases the thickness of the hardened layer by 2.5 times.