Selected properties of Vanadis 8 tool steel after grinding and hard turning

Two mechanical processes of surface layer (SL) modification were performed on Vanadis 8 tool steel: grinding (G) and hard turning (HT). This steel is classified as powder metallurgy (P/M) high-alloyed tool steel. Heat treatment was carried out in vacuum furnaces with gas quenching until hardness of 64 ±1 HRC was achieved. Surface geometrical structures (SGS), microstructures, residual stress levels and wear resistance of SL resulting in these processes were compared.