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Texture evolutions in heavy gauge steel plates after inter-critical rolling at high temperatures

Thursday (27.09.2018)
12:30 - 12:45 S1/01 - A4
Part of:

Hot rolling is an essential part in manufacturing of heavy gauge structural steel plates. These hot deformations are usually carried on at two phase ferrite-austenite region for strength improvement. Nevertheless, it is a challenging task to control the microstructure of the steel plates at inter-critical condition as well as after cooling to room temperature. For instance, microstructure and texture which determine the plastic anisotropy of the materials are often heterogeneously distributed across the plate thickness due to variations in the temperature distribution and the strain distribution during rolling of thick plates. In this study, the texture evolution after inter-critical rolling of a low carbon steel is investigated. Textures after hot rolling at various inter-critical temperatures are measured by “wide-field” EBSD technique. The formation of austenite and ferrite textures during deformation, phase transformation and/or recrystallization is simulated by crystal plasticity based models. Comparisons between simulated and measured textures reveal the link between process parameters and microstructures of the material.

Dr. Minh Tuan Nguyen
Delft University of Technology
Additional Authors:
  • Dr. Matteo Caruso
    CRM Group - Centre de Recherches Métallurgiques
  • Dr. Ulrike Lorenz
  • Prof. Dr. Jilt Sietsma
    Delft University of Technology
  • Prof. Dr. Roumen Petrov
    Ghent University