Experimental investigations into grinding characteristics of high entropy alloys (HEAs) using micro grinding

摘要

The micro grinding experiments of high entropy alloys (HEAs) (FeCrCoNiMn and Fe40Mn40Co10Cr10) are conducted by using a JX-1A ultra-precision grinding lathe. The micro grinding orthogonal experiment of HEA was carried out, and the effect degree of grinding parameters on normal grinding force, tangential grinding force, and surface roughness value was obtained respectively. In order to further study the micro grinding characteristics of HEAs, grinding force and surface roughness were investigated by single factor experiment. The micro grinding characteristics of different micro grinding tools and different HEAs have been studied experimentally. The mechanism and mode of material removal of HEAs were analyzed by observing the grinding surface and chip morphology of HEAs. The grinding temperature of HEA is simulated by using Deform-2D finite element process simulation system, which is helpful to predict and control the grinding temperature of HEA in. Finally, the wear of micro grinding tools is investigated, which plays an important role in micro grinding of HEAs.