Revealing and characterising solidification structure of ductile cast iron
This study deals with the solidification and microsegregation processes of near eutectic ductile cast iron. A detailed analysis of old and new solidification models was made. Metallographic techniques, developed elsewhere by the authors, were used to reveal the solidification microstructure and macr...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2002 |
| País: | Argentina |
| Institución: | Consejo Nacional de Investigaciones Científicas y Técnicas |
| Repositorio: | CONICET Digital (CONICET) |
| Idioma: | inglés |
| OAI Identifier: | oai:ri.conicet.gov.ar:11336/55194 |
| Acceso en línea: | http://hdl.handle.net/11336/55194 |
| Access Level: | acceso abierto |
| Palabra clave: | https://purl.org/becyt/ford/2.5 https://purl.org/becyt/ford/2 |
| Sumario: | This study deals with the solidification and microsegregation processes of near eutectic ductile cast iron. A detailed analysis of old and new solidification models was made. Metallographic techniques, developed elsewhere by the authors, were used to reveal the solidification microstructure and macrostructure. The results allow a new solidification model to be proposed, where each solidification unit is a grain of eutectic austenite that has a dendritic substructure and contains a very large number of graphite nodules. A pattern of microsegregation exists inside each solidification grain, while no intergranular microsegregation has been detected. A procedure to characterise the solidification refinement was developed considering the location of the last to freeze areas. © 2002 IoM Communications Ltd. |
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