Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/187681
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Precipitation and grain growth modelling in Ti-Nb microalloyed steels |
Autor: | Graux, A.; Cazottes, S.; De Castro, D.; San-Martín, David CSIC ORCID ; Capdevila, Carlos CSIC ORCID ; Cabrera, J. M.; Molas, S.; Schreiber, S.; Mirković, D.; Danoix, F.; Bugnet, M.; Fabrègue, D.; Pérez, M. | Palabras clave: | Microalloyed steels Precipitation Modelling Grain growth Austenite |
Fecha de publicación: | 2019 | Editor: | Elsevier | Citación: | Materialia 5: (2019) | Resumen: | Mechanical properties of microalloyed steels are enhanced by fine precipitates, that ensure grain growth control during subsequent heat treatment. This study aims at predicting austenite grain growth kinetics coupling a precipitation model and a grain growth model. These models were applied to a titanium and niobium microalloyed steel. The precipitate size distributions were first characterized by TEM and SEM and prior austenite grain boundaries were revealed by thermal etching after various isothermal treatments. From CALPHAD database, a solubility product was determined for (Ti,Nb)C precipitates. A numerical model based on the classical nucleation and growth theories was used to predict the time evolution of (Ti,Nb)C size distributions during various isothermal heat treatments. The precipitation model was validated from TEM/SEM analysis. The resulting precipitate size distributions served as entry parameters to a simple grain growth model based on Zener pinning. The pinning pressure was calculated using the whole size distribution. The resulting austenite grain growth kinetics were in good agreement with the experimental data obtained for all investigated heat treatments. | Versión del editor: | https://doi.org/10.1016/j.mtla.2019.100233 | URI: | http://hdl.handle.net/10261/187681 | DOI: | 10.1016/j.mtla.2019.100233 | Identificadores: | doi: 10.1016/j.mtla.2019.100233 issn: 2589-1529 |
Aparece en las colecciones: | (CENIM) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
2_Precipitation and grain growth modelling in Ti-Nb microalloyed steels.pdf | 8,03 MB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
50
checked on 22-abr-2024
WEB OF SCIENCETM
Citations
41
checked on 25-feb-2024
Page view(s)
222
checked on 23-abr-2024
Download(s)
177
checked on 23-abr-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.