Study of the Hardening-toughening Heat Treatment Process of High Chrome Cast Iron Grinding Balls (2)

3.The graded austenitizing isothermal quenching process 3.1 Effect of grade austenitizing austempering on mechanical properties of Grinding Ball After the ball was austenitized at 980 °C for 150 min + 920 °C for 30 Min, and then put into a salt bath furnace at 260 °C for 30 min and 50 Min, the hardness and […]

Study of the Hardening-toughening Heat Treatment Process of High Chrome Cast Iron Grinding Balls (1)

Abstract: The influence of quenching-tempering heat treatment, conventional austempering heat treatment and multi-stage austenitizing austempering heat treatment on the microstructure and property of high chrome cast iron grinding balls were comparatively investigated. The results show that the impact toughness and impact fatigue resistance of the grinding balls are higher after austempering. The austempering heat treatment […]