Abstract The article studies on the effect of slippage rate on frictional wear behaviors of high-tungsten high-speed steel (HTHSS) under high-pressure contact by using a self-made ring-on-ring wear machine. The microstructure of HTHSS is characterized by dual-scale tungsten carbides, including microscale eutectic M6C carbide [(Fe0.55W0.30Cr0.08Mo0.07)6C] and nanoscale secondary M6C carbide. Slippage rate has a significant effect on frictional wear behaviors. The peak value of friction coefficient occurs at the slippage rate of 5.5%. The friction coefficient will reduce whether the slippage rate increases or decreases. However, the increase in slippage rate makes wear failure mechanism change from fatigue to scratch, causing continuously significant increase in wear weight loss. The roles of different scale M6C carbides in resisting wear were also discussed.

中文翻译：

---

滑移率对双尺度碳化钨（M6C）高速钢高压滑轧条件下摩擦磨损行为的影响

摘要 使用自制的环对环磨损机研究了滑移率对高压接触下高钨高速钢（HTHSS）摩擦磨损行为的影响。HTHSS的微观结构以双尺度碳化钨为特征，包括微尺度共晶M6C碳化物[(Fe0.55W0.30Cr0.08Mo0.07)6C]和纳米级二次M6C碳化物。滑移率对摩擦磨损行为有显着影响。摩擦系数的峰值出现在滑移率为 5.5% 处。无论滑移率增加还是减少，摩擦系数都会降低。然而，滑移率的增加使磨损失效机制从疲劳转变为划伤，导致磨损失重不断显着增加。