Study on RE-chrome-boronizing of Steel 45 at Low Temperature
In order to improve the speed of boronizing,several experiments were attempted.Taking boron-iron as agent,KBF4 as the main activator,thus,the best boronizing agent formulations at low-temperature were obtained.The results show that the RE-chrome-boronizing treated at 650 ℃ for 6 h on steel 45 is carried out by applying this boronizing agent,the depth of boriding layer reaches 22 μm.Besides the borides are sawtooth morphology,with high hardness and abrasive wear resistance.