Efecto de la temperatura de austemperizado en CADIs aleados con cromo
Resumen
Los hierros dúctiles con carburos tratados térmicamente mediante austemperizado se dominados CADIs. Estos materiales presentan elevadas propiedades de dureza y resistencia al desgaste. En este trabajo, se obtuvieron CADIs aleados con 0.28 %Cr utilizando temperaturas de austemperizado de 265 y 305 °C con tiempos de 30, 60, 90 y 120 min. La caracterización microestructural se llevó a cabo mediante microscopia óptica y microscopia electrónica de barrido el uso del software Image J para obtener un análisis cuantitativo y la caracterización mecánica mediante dureza y resistencia al desgaste. Los resultados mostraron que la matriz ausferritica se obtuvo a los 90 min de austemperizado y la ventana del proceso en un rango de tiempo de entre 60 y 120 min. La mayor fracción volumen de austenita de alto contenido de carbono (14.45 %) se obtuvo en el CADI-305. La mayor dureza de 41 HRC y resistencia al desgaste de 0.42 mm3 fueron obtenidos en el CADI-265
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Derechos de autor 2023 Eduardo Colin-García, Alejandro Cruz-Ramírez, Ricardo Gerardo Sánchez-Alvarado, Miguel Angel Suarez-Rósales
Esta obra está bajo licencia internacional Creative Commons Reconocimiento-NoComercial-SinObrasDerivadas 4.0.
