The effects of multi-layer graphene (MLG) on the properties tungsten carbide-11 cobalt (WC-11Co) cemented carbides were studied by transmission electron microscopy (TEM), scanning (SEM), X-ray diffraction analysis (XRD) and other methods. results show that when MLG content is 0.1 wt%, density, hardness fracture toughness are 3%, 14.5% 71.8% higher, respectively, compared with sample without MLG...

Laser processing of cutting tool materials particularly cemented carbides can induce many surface defects including porosity, balling, and micro-cracks. When present in the microstructure tools, micro-cracks lead to chipping early failure. The detection identification cracks be used predict performance post laser processing. To develop a method for crack scanning electron microscopy (SEM) image...

WC-Co cemented carbides have a unique combination of high hardness and good toughness, making them ideal as tool materials in applications such metal machining or rock drilling. Dopants are commonly added to retard grain growth thereby creating harder material. Thin films with cubic structure been observed experimentally at phase boundaries between hexagonal WC fcc Co-rich binder when doping wi...