Numerical Simulation on the Surface Layer Hardness of 40Cr Steel in Grind-Hardening

摘要

Grind-hardening is not only a complex process coupling mechanical, dynamical and thermal effects, but a process containing distinct changes of microstructure and performances in the surface layer of the grinded workpiece. Based on the software Deform-2D, this paper simulated the distribution and variation of the fields of temperature, microstructure and micro-hardness in the hardened layer of 40Cr. The micro-hardness of the hardened layer was obtained, which coincided well with the experimental results. The work here has provided a new way for making and implementing the grind-hardening process, as well as for scientifically and generally evaluating the effects of grind-hardening.