journal article·2016-05Open access

Formation of Widmanstätten ferrite at very high temperatures in the austenite phase field

Rupanjit Grewal, Clodualdo Aranas, Kanwal Chadha, Davood Shahriari, Mohammad Jahazi, John J. Jonas

Acta Materialia· Volume 109

Abstract

Compression tests were carried out on a 0.06wt%C-0.3wt%Mn-0.01wt%Si steel at temperatures high in the austenite phase field. Eight deformation temperatures were selected in the range from 1000 to 1350 °C at 50 °C intervals. The quenched samples were examined using optical microscopy and EBSD techniques. It was observed that dynamic transformation took place and that the volume fraction of transformed ferrite first decreased with temperature (up to 1050 °C) and then increased as the delta ferrite temperature domain was approached. The EBSD results revealed the presence of Widmanstatten ferrite plates under all testing conditions, right up to 1350 °C.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Microstructure and Mechanical Properties of Steels · Metallurgy and Material Forming · Aluminum Alloy Microstructure Properties

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

References (31)

Show source-provided references
1. Evolution deformation of ultrafine- grained ferrite in hot successive deformation10.2355/isijinternational1966.27.492 ↗
2. Proc. Int. Conf. Physical Metallurgy of thermomechanical processing of steels and other metals
3. Dynamic γ → α transformation during Hot deformation in Iron-Nickel-Carbon alloys10.2355/isijinternational.40.200 ↗
4. Dilatometric investigation on isothermal transformation after hot deformation
5. Deformation induced ferrite transformation in low carbon steels10.1016/j.cossms.2006.02.014 ↗
6. Monte Carlo-Method simulation of the deformation-induced ferrite transformation in the C-Fe system10.1007/s11661-004-0263-9 ↗
7. Coupled simulation of the influence of austenite-ferrite transformation on the subsequent isothermal austenite-ferrite transformation10.1016/j.actamat.2005.10.055 ↗
8. Effect of austenite grain size on kinetics of dynamic ferrite transformation in low carbon steel10.1016/j.scriptamat.2012.12.021 ↗
9. Flow stress analysis for determining the critical condition of dynamic ferrite transformation in 6Ni-0.1C steel10.1016/j.actamat.2012.09.043 ↗
10. Occurrence of dynamic ferrite transformation in low carbon steel above Ae310.1016/j.scriptamat.2012.12.010 ↗
11. Microstructural evolution and kinetics for post-dynamic transformation in a plain low carbon steel10.2355/isijinternational.48.994 ↗
12. Effect of plastic deformation of austenite on the kinetics subsequent ferrite formation10.2355/isijinternational.41.1028 ↗
13. The dynamic transformation of deformed austenite at temperatures above the Ae310.1016/j.actamat.2013.01.006 ↗
14. Dynamic transformation during the torsion simulation of strip rolling10.4028/www.scientific.net/MSF.783-786.39 ↗
15. Thermodynamics of dynamic transformation of hot deformed austenite in four steels of increasing carbon content10.1016/j.msea.2013.10.077 ↗
16. Role of mechanical activation in the dynamic transformation of austenite10.1016/j.actamat.2013.06.054 ↗
17. Dynamic Transformation of Austenite to Ferrite during the Torsion Simulation of Strip Rolling
18. Effect of Mn and Si on dynamic transformation of austenite above the Ae3 temperature10.1016/j.actamat.2014.08.060 ↗
19. Flow softening-based formation of Widmanstätten ferrite in a 0.06%C steel deformed above the Ae310.2355/isijinternational.55.300 ↗
20. FactSage thermomechanical software and database –recent developments10.1016/j.calphad.2008.09.009 ↗
21. THERMO-CALC & DICTRA, computational tools for materials science10.1016/S0364-5916(02)00037-8 ↗
22. An empirical relation defining the stress dependence of minimum creep rate in metals
23. Modern HSLA steels and role of non-recrystallization temperature10.1179/1743280411Y.0000000013 ↗
24. A one-parameter approach to determining the critical conditions for the initiation of dynamic recrystallization
25. Determination of the critical strains for the initiation of dynamic transformation and dynamic recrystallization in for steels of increasing carbon contents10.1002/srin.201200188 ↗
26. Ferrite formation above the Ae3 temperature during the torsion simulation of strip rolling10.2355/isijinternational.ISIJINT-2015-320 ↗
27. Brooks · 1996
28. The rotation axes and angles involved in the formation of self-accommodating plates of Widmanstätten ferrite10.1016/j.actamat.2014.03.059 ↗
29. Dynamic transformation behavior of deformed high carbon steel at temperatures above the Ae310.2355/isijinternational.53.900 ↗
30. Formation of Widmanstätten ferrite in a 0.036% Nb low carbon steel at temperatures above the Ae310.1002/srin.201200226 ↗
31. The ferrite transformation in hot deformed 0.036% Nb austenite at temperature above the Ae310.2355/isijinternational.50.1185 ↗