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In this work, the effects of both the vacuum sintering temperature and time on microstructure and properties evolution of the WC-Fe-Ni-Co cemented carbides were investigated. And, the alloys with excellent properties were successfully prepared by vacuum sintering. The results show that both the sintering temperature and time are critical factors affecting the porosity, microstructure and mechanical...
In this work, the effects of NbC additions on microstructure and properties of non-uniform structure WC-7Co cemented carbides were investigated X-ray diffractometer, scanning electron microscopy (SEM), electron probe microanalysis (EPMA), mechanical properties tester and electrochemical workstation, respectively. The results show that WC phase can be partially dissolved into the NbC to form a (Nb,W)C...
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