Nanoindentation mapping of cemented carbides: microstructure-property analysis through statistical cluster extraction
Cemented carbides are composite materials with exceptional mechanical properties derived from their unique microstructure. However, raw material limitations pose a significant challenge to research in this field. Conse- quently, investigation has been driven towards alternative phases, such as high-...
| Autores: | , , , , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2025 |
| 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:2117/440605 |
| Acceso en línea: | https://hdl.handle.net/2117/440605 https://dx.doi.org/10.1016/j.jeurceramsoc.2025.117431 |
| Access Level: | acceso abierto |
| Palabra clave: | WC-Co High Entropy Carbides Additive Manufacturing High speed nanoindentation mapping Statistical analysis Àrees temàtiques de la UPC::Enginyeria dels materials::Materials compostos |
| Sumario: | Cemented carbides are composite materials with exceptional mechanical properties derived from their unique microstructure. However, raw material limitations pose a significant challenge to research in this field. Conse- quently, investigation has been driven towards alternative phases, such as high-entropy carbides (HECs) and alternative processing routes, including additive manufacturing (AM) techniques. The main objective of this study is to explore the micromechanical response of four distinct cemented carbide grades: press-and-sintered (PS) and Binder Jetting (BJT) WC-Co samples, together with two HEC-based systems, with Co and Ni as binders. The mechanical property data was obtained by means of high-speed nanoindentation mapping (HSNM), thus facilitating correlation between microstructure and local mechanical behaviour. Regarding statistical analysis, the Skew-Normal Mixture (Sk-M) model was used to interpret the HSNM data. The results provided detailed insights into phase mechanical properties, phase volume quantification and their microstructural rep- resentation, proving how useful it can be as a "mechanical microscopy" tool. |
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