Kinetics of formation of graded layers on cemented carbides: Experimental investigations and DICTRA simulations

►Kinetics of formation of fcc-free layers on Co-W-Ti-Ta-Nb-C-N cemented carbides. ► Investigations by experimental methods and DICTRA simulations. ► Fcc-free layer growth obeys parabolic law (diffusion-controlled process). ► Study of influence of mobilities for all diffusing elements in DICTRA simulations. ► Best fitting if mobilities of W Ti Ta Nb is two times slower than that of C and N.