Fracture toughness of cemented carbides: Testing method and microstructural effects
Fracture toughness is one the most important parameters for design applications and performance assessment of WC-Co cemented carbides (hardmetals). Different from hardness, fracture toughness is commonly a property more difficult to evaluate, particularly in brittle materials. A large number of diff...
| Autores: | , , , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2015 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/86464 |
| Acceso en línea: | https://hdl.handle.net/2117/86464 https://dx.doi.org/10.1016/j.ijrmhm.2014.08.018 |
| Access Level: | acceso abierto |
| Palabra clave: | Carbides Cement composites Fracture toughness Microstructural characterization wc-co cermets brittle materials hertzian fracture specimens indentation grain diffraction composites hardmetals Carburs -- Fractura Àrees temàtiques de la UPC::Enginyeria dels materials |
| Sumario: | Fracture toughness is one the most important parameters for design applications and performance assessment of WC-Co cemented carbides (hardmetals). Different from hardness, fracture toughness is commonly a property more difficult to evaluate, particularly in brittle materials. A large number of different testing methods have been introduced to evaluate toughness of hardmetals, but in general all of them have either theoretically debatable issues or important experimental difficulties. In this study, three different fracture toughness testing methodologies are investigated: three-point bending on Chevron notched specimen ( |
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