Effect of silicon on the hot flow behavior of ultra-low carbon austenite
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2019 |
| 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:2117/177212 |
| Acceso en línea: | https://hdl.handle.net/2117/177212 https://dx.doi.org/10.1520/MPC20190026 |
| Access Level: | acceso abierto |
| Palabra clave: | Steel Acer Àrees temàtiques de la UPC::Enginyeria dels materials |
| Sumario: | Standards & Publications All Standards and Publications Standards Products Symposia Papers & STPs Manuals, Monographs, & Data Series Technical Reports Journals Reading Room Authors Book of Standards Reading Room Tracker Services Catalogs Digital Library Enterprise Solutions Proficiency Testing Training Courses Certification Cement & Concrete Reference Lab Volume 8, Issue 5 (October 2019) Special Issue Paper Effect of Silicon on the Hot Flow Behavior of Ultra-Low Carbon Austenite (Received 30 January 2019; accepted 25 April 2019) Published Online: 2019 CODEN: MPCACD Format Pages Price PDF (1.42 MB) 15 $25 ADD TO CART Cite this document P. Rodríguez-Calvillo, J. Schneider, Y. Houbaert, J. Cabrera, and R. Colás, "Effect of Silicon on the Hot Flow Behavior of Ultra-Low Carbon Austenite," Materials Performance and Characterization 8, no. 5 (2019): 985-999. https://doi.org/10.1520/MPC20190026 EMAIL CITATIONEXPORT CITATIONPRINT CITATION ASTM License Agreement REPRINTS AND PERMISSIONS Abstract The influence of silicon on the high-temperature deformation behavior of ultra-low carbon austenite was studied in the range of temperature and strain rate from 1,000 to 1,100°C and 0.001 to 0.1 s-1, respectively. The flow curves of the steels exhibit the classic softening due to dynamic recrystallization. The characteristic pairs of stress-strain values (zero, critical, peak, saturation, and steady state) were determined by the analysis of the work hardening curves. These values were analyzed by applying first the classical Sellars and McTegart approach. Once the apparent stress exponents and activation energies were determined as being in the vicinity of 5 and above 270 kJ/mol, respectively, a modified hyperbolic sine equation was used. The flow curves were characterized by work hardening, dynamic recovery, and recrystallization terms at any processing conditions, showing a direct relationship with the silicon content of the steels. Finally, all the flow curves of studied steels were discussed and modeled as a function of the processing parameters and silicon content. |
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