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ARTÍCULO

Densification of WC-Fe-Ni-Co-Cr cemented carbides processed by HIP after sintering: effect of WC powder particle size

Autores: Soria Biurrun, Tomás (Autor de correspondencia); Lozada Cabezas, Lorena Josefina; Navarrete-Cuadrado, J.; Ibarreta-López, F.; Martínez-Pampliega, R.; Sánchez Moreno, José Manuel
Título de la revista: INTERNATIONAL JOURNAL OF REFRACTORY METALS AND HARD MATERIALS
ISSN: 0263-4368
Volumen: 110
Páginas: 105994
Fecha de publicación: 2023
Resumen:
Shrinkage, liquid formation and mass losses of WC-19 vol% FeNiCoCr alloys during sintering have been inves-tigated in compositions either with coarse or submicron WC powders. Mass losses detected by thermogravimetry are compatible with carbothermal reduction of the different oxides present in the powder mixtures. Hardness and fracture toughness of materials based on submicron WC powders are within tolerances of those reported for WC -Co materials with similar microstructures. However, fracture strength is approx. 25% lower.
Enlace DADUN: https://hdl.handle.net/10171/65974
DOI: https://doi.org/10.1016/j.ijrmhm.2022.105994
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