Research on High Temperature Friction and Wear Characteristics of H13-Cr2C3-CaF2 Self-lubricating Materials

摘要

Based on the service environment and requirements of hot working die, we proposed a H13-Cr2C3-CaF2 self-lubricating material formula system and powder metallurgy process parameters, and prepared the high temperature composite materials. The phase composition and distribution of H13-Cr2C3-CaF2 samples were analyzed by energy dispersive spectrometer. The friction coefficient, wear rate, wear morphology and spectrum of samples with different contents of CaF2 were tested and compared by ball-on-disc high temperature tribometer under the conditions of test temperature 600 °C, disk rotation speed 200 r/min and friction for 15 min,and the mechanism of high temperature friction and wear was described. It will support the green manufacturing and sustainable development of forging industry.