Affiliations: College of Electrical and Mechanical Engineering, Xuchang University, Xuchang, Henan 461000, China | E-mail: gexf@xcu.edu.cn
Correspondence:
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Corresponding author: College of Electrical and Mechanical Engineering, Xuchang University, Xuchang, Henan 461000, China. E-mail: gexf@xcu.edu.cn.
Abstract: In order to improve the wear resistance of WNiCoFe alloy for cutting tools, WNiCoFe alloy powder is prepared by multiple metals electrolysis, alloy powder and its sintered morphology is observed and phase is analyzed using X-ray diffractometer and scanning electron microscope (SEM), the effect of sintering temperature on its physical mechanics and friction properties was studied. The results show that the prepared WNiCoFe alloy powder is alloyed to some extent, irregular and finer particle size, the diffraction peaks of Co3Fe7 and Fe19Ni are formed in addition to the elemental Fe; the maximum hardness of the sintered is 107.6HRB, the maximum bending strength at three points is 1638.3 mpa, the maximum density is 96.2%, and wear loss is 0.498–0.555 g when WNiCoFe alloy powder is sintered at 800∘C. Diamond tools are made with WNiCoFe alloy powder as the main matrix composition, and cut hard stone, cutting velocity is 8.6 m2/h and life is 11.3 m2/m, which has a good comprehensive performance.
