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Título: | Evolution of Austenite Microstructure and Precipitation State during Hot Rolling of a Nb-Microalloyed Steel |
Autor: | Gómez, Manuel CSIC ORCID; Medina, Sebastián F. CSIC ORCID; Quispe, Alberto | Palabras clave: | Microalloyed steel Hot rolling simulation Recrystallization Precipitation |
Fecha de publicación: | 2003 | Editor: | Trans Tech Publications | Citación: | Materials Science Forum 426-432 : 1535-1541 (2003) | Resumen: | Hot torsion tests were used to simulate hot rolling of a Nb-microalloyed steel. Subsequent graphic representation of Mean Flow Stress (MFS) versus the inverse of absolute temperature for each pass allowed to know the critical rolling temperatures (Tnr Ar3, Ar1,)) and residual stress accumulated in austenite just before austenite to ferrite phase transformation. It has been found that, as successive rolling passes are applied at temperatures below Tnr, mean precipitate size decreases as a result of deformation applied and hardening by incomplete recrystallization of austenite. | Versión del editor: | http://dx.doi.org/10.4028/www.scientific.net/MSF.426-432.1139 | URI: | http://hdl.handle.net/10261/56220 | DOI: | 10.4028/www.scientific.net/MSF.426-432.1535 | ISSN: | 0255-5476 |
Aparece en las colecciones: | (CENIM) Artículos |
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06_Mat Sci Forum 426-432 (2003) 1535-1540.pdf | 245,78 kB | Adobe PDF | Visualizar/Abrir |
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