Effects of Sintering Temperature on Microstructure and Properties of Ultrafine WC-VC-NbC-Co Cemented Carbides

Abstract:

In this study, Ultrafine WC-VC-NbC-Co was sintered by vacuum sintering at the different sintering temperature. The microstructure and mechanical properties of alloy were analysed by Zeiss optical microscope, SEM-EDS. The results demonstrated that with the increasing sintering temperature, porosity first decreases and then increases, WC grain size enlarges content of η phase decreases. In addition, results reveal the best overall performance was abstained at 1440°C: Density, Vikers hardness, bening were: 14.30g/cm³, 1950HV₃₀, 1787Mpa.

• Periodical: Advanced Materials Research (Volumes 926-930)
• Pages: 93-97
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.926-930.93
• Online since: May 2014
• Authors: Ai Min Jiang*, Xian Quan Jiang, Zi Peng Zhao, Rong Yu, Rong Jie Yang
• Keywords: Inhibitors, Mechanical Property, Sintering Temperature

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