本文系统地研究了钒和基体硬度对通用高速钢9-3-4-1、M2、W18(重点是9-3-4-1)耐磨性和磨削性的影响。试验证实新钢种9-3-4-1钢采用1.4～1.7％V和△C(?)0.2的成分,保证了其耐磨性略高或接近M2钢,而磨削性明显优于M2钢。借助扫描电镜、力性测定等手段,分析了磨损、磨削机理和MC、M_6C碳化物对钢的耐磨与磨削性能的影响,并得出碳化物类型、数量、尺寸与高速钢磨粒磨损耐磨性的关系。 This paper systematically studies the effect of vanadium and matrix hardness on the wear resistance and grindability of common high-speed steels 9-3-4-1, M2, W18 (9-3-4-1 emphasis). Test confirmed that the new steel 9-3-4-1 steel with 1.4 ~ 1.7% V and △ C (?) 0.2 components to ensure that its wear resistance is slightly higher or close to M2 steel, and grindability was significantly better than M2 steel. The effects of wear, grinding mechanism, MC and M_6C carbides on the wear resistance and grinding performance of the steel were analyzed by means of scanning electron microscopy and force measurement. The effects of carbide type, amount, size and high speed steel abrasive particles Wear and tear of the relationship.