FeCoNiCrMo高熵合金磨削机理及表面粗糙度

针对FeCoNiCrMo高熵合金进行平面磨削实验，研究其材料去除机理，分析不同磨削参数对磨削表面粗糙度和表面形貌的影响规律.研究采用不同砂轮磨削的试件表面形貌，并探讨干磨和湿磨条件下磨削表面粗糙度的变化规律.实验结果表明:FeCoNiCrMo高熵合金磨削过程满足塑性材料去除机理；随磨削速度增大，进给速度和磨削深度减小，磨削表面粗糙度值减小，表面形貌更加平整；与采用电镀砂轮磨削的试件相比较，采用树脂结合剂砂轮磨削的试件表面粗糙度值更低，表面形貌更好；与干磨试件相比较，湿磨的试件表面粗糙度值更低，表面质量更好.

Grinding Mechanism and Surface Roughness of FeCoNiCrMo High-Entropy Alloy

The surface grinding experiment of FeCoNiCrMo high-entropy alloy was conducted to analyze the grinding mechanism and influence of grinding parameters on the surface roughness and morphology of the alloy. The surface morphology of the specimens ground with different grinding wheels and the surface roughness of the specimens under dry and wet grinding conditions were investigated. The experiment results show that grinding FeCoNiCrMo follows the removal mechanism of plastic material. As the grinding speed increases and the feed rate and grinding depth decrease， the surface roughness of the specimens decreases and their surface morphology is smoother. The surface roughness of the specimens ground with the resin bond grinding wheel is lower and their surface morphology is better， compared with the ones ground with the electroplated grinding wheel. The surface roughness is significantly lower and the surface quality is better under the condition of wet grinding than that under the condition of dry grinding.