Surface roughness characterization of thermally sprayed and precision machined WC–Co and Alloy-625 coatings was carried out. The objectives were to demonstrate that such difficult-to-machine coating surfaces could be machined with commercial machines and tools, and to characterize the surface finish of the machined coatings. The coatings were obtained using two thermal spraying processes: arc s...

The Al-alloying treated tungsten carbide (WC)-Co tool was subjected to grinding using a jaw crusher and planetary mill followed by three wet chemical treatment steps to establish an effective recycling process for WC scraps, especially those generated as bulky and hard scrap. This alloyed WC tool was readily ground to a powder of 1 mm or less and divided into two portions that were 150 μm in si...

Understanding the morphological evolution of tungsten carbides (WC) grains is one a few key factors to control mechanical properties cemented such as wear resistance and toughness. In this work, three-dimensional (3D) equilibrium morphology faceted WC in WC-Co system was prospected by means phase-field simulations with parameters adjusted on ab-initio calculations. To model grain surfaces, spec...

A number of WC-Co cemented carbides with 6–12 wt. % Co were machined and surface finished by grinding or Electrical Discharge Machining (EDM). EDM was executed in deionised water through several consecutive gradually finer steps. Correlations between Material Removal Rate (MRR), surface finish and EDM parameters were derived. The quality and integrity of surface finishes were analysed by Scanni...

In this study, the mechanical behavior under monotonic loads of tungsten carbide‑cobalt (WC-Co) composites is investigated extensively by analyzing (1) nanoindentation tests on WC particles and Co matrix, (2) nanowires made WC-Co tested in tension (3) micropillars compression. To end, a novel computational framework consisting two different microplane constitutive models developed for phases ar...

Shrinkage, liquid formation and mass losses of WC-19 vol% FeNiCoCr alloys during sintering have been investigated in compositions either with coarse or submicron WC powders. Mass detected by thermogravimetry are compatible carbothermal reduction the different oxides present powder mixtures. Hardness fracture toughness materials based on powders within tolerances those reported for WC-Co similar...