Surface hardening peculiarities of Hadfield steel processed by hard metal indentor
The depth of hardened surface layer produced by ultrasonic surface mechanical treatment was studied in this work. For surface layer depth estimation two methods were used. One of them is based on microhardness to depth-from-surface dependence analysis, another is based on investigation of structural changes occurred in the process of the treatmnent. It was shown, that method, based on microhardness measurements gives understated estimates of hardened layer depth.