Investigation of microstructure and hardness of WC-Co modified by graphene oxide deposited by HVOF
DOI:
https://doi.org/10.53660/1207.prw2714Palavras-chave:
Óxido de grafeno, Aspersão térmica, HVOF, Revestimento, WC-CoResumo
O processo de aspersão por combustível de oxigênio de alta velocidade (HVOF) foi utilizado para fabricar carboneto de tungstênio - 12% em peso de cobalto (WC-12Co) com diferentes teores de óxido de grafeno (GO) (0, 0,5, 0,75 e 1% em peso). Foram utilizadas as técnicas de DRX, MEV-FEG, Raman e microdureza Vickers para caracterizar os pós e os revestimentos aplicados. Os resultados experimentais revelaram que os valores de microdureza aumentaram em 19,6% na presença de GO, demonstrando que o GO melhora as propriedades mecânicas do revestimento.
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