Microstructure and properties of coarse WC-10CoCrFeMnNi cemented carbide by mechanical alloying and hot pressing sintering

WC-10CoCrFeMnNi coarse cemented carbide was made by hot pressing sintering at temperatures of 1000 degrees C, 1100 degrees C, 1200 degrees C, and 1300 degrees C, respectively. Using powders of the high entropy alloy (HEA) CoCrFeMnNi that have been mechanically alloyed (MA). Through the use of X-ray diffraction, scanning electron microscopy, energy dispersive spectroscopy, electron backscatter diffraction, Vickers microhardness testing, transverse rupture strength testing, and friction wear testing, the microstructure and general properties of coarse WC-HEA cemented carbide were investigated. With hardness, fracture toughness, transverse rupture strength, and coefficient of friction of 1206 HV30, 9.34 Mpa.m1/2, 1222 Mpa, and 0.595, respectively, WC-10CoCrFeMnNi cemented carbide exhibits the best combination of properties. By examining the experimental data, it was possible to produce the WC-10CoCrFeMnNi cemented carbide at 1100 degrees C with good overall performance. According to the excellent performance of WC-HEA in fracture toughness, it becomes possible as a new type of cemented carbide.