The effect of coherency WC/Co phase boundaries on the fracture toughness of the nanocrystalline WC-Co cemented carbides is studied by MD simulation method. The simulation results show that the nanocrystalline WC-Co cemented carbides with coherency WC/Co phase boundaries has higher fracture toughness than that without coherency WC/Co phase boundaries. Moreover, the mechanism of why coherency WC/...

Ultrafine tungsten carbide-nickel (WC-Ni) cemented carbides with varied fractions of silicon carbide (SiC) nanowhisker (0-3.75 wt.%) were fabricated by spark plasma sintering at 1350°C under a uniaxial pressure of 50 MPa with the assistance of vanadium carbide (VC) and tantalum carbide (TaC) as WC grain growth inhibitors. The effects of SiC nanowhisker on the microstructure and mechanical prope...

Cemented carbides are used in the cutting tools industry thanks to their exceptional mechanical properties. Manufactured by powder metallurgy route, they made of a hard WC phase with ductile metallic binder, most commonly Co. Due lower availability Co and its classification as carcenogenic material REACH European Regulation, new binders have be considered: Fe Ni investigated this work. Because ...

Cemented carbides have belonged to the most important engineering materials since their invention in 1920s. Commonly, they consist of hard WC grains embedded a cobalt-based ductile binder. Recently, attempts been made substitute cobalt using multicomponent alloys without principal component (also known as high entropy alloys—HEAs). HEAs usually contain at least five components more or less equa...

Cemented carbides have been known for about a hundred years and are now widely used in mining, civil road construction, mechanical engineering. Their improvement requires the development of novel technologies based on fundamentally new approaches. Here method microstructure analysis using computer processing with elements machine learning artificial intelligence is proposed. It has applied to m...