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Tungsten carbide (WC)-based metal matrix composite (MMC) coatings fabricated using a low-cost, low-pressure cold spray unit were subjected to ASTM standard G65 dry abrasion wear testing. A linear relationship was observed between the wear rate and hardness of the various MMC coatings. Rule of mixtures (ROM) and a modified wear theory was used to explain the wear rate and material removal from the...
A low-cost, low-pressure cold spray unit was used to fabricate tungsten carbide (WC)-based metal matrix composite (MMC) coatings. A sintered and crushed WC-based powder was mixed with nickel powder, forming various compositions of mechanical blends. Scanning electron microscopy (SEM), coupled with image analysis, Vickers micro-hardness, and X-ray diffraction (XRD) was used to characterize the coatings...
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