Abstract:
This study investigated the hardness and wear on DIN 1.2367 hot work tool steel after applying plasma and gas nitriding processes under different conditions. The effect of the plasma nitriding process temperature and the N2:H2 gas mixture ratio was examined in the first group of specimens, whereas the impact of the gas nitriding nitrogen potential and retention time was investigated in the second group of specimens. In the plasma nitriding process applied to the first group, the increase in the N2 ratio in the gas mixture significantly increased the hardness and wear properties of the material. In addition, the wear resistance of the specimen with the highest hardness value was increased. Although the nitriding time and potential nitrogen values in the second group had changed, the diffusion depth and hardness distribution were found to be close.