Victor Blancas-García, Enrique Garcia
The traditional view of the role of microalloying elements (MAE) has been widely accepted by their contribution on the structure-property relationship optimization through the grain size control during reheating and subsequent microstructural refinement of the austenite during thermo-mechanical processing. This work shows a systematic analysis of the austenitic grain-boundary character distribution by Electron Backscattered Diffraction (EBSD) and Electron Microscopy techniques conducted on experimental Ti-microalloyed low-carbon steels subjected to different isothermal heat treatments. The results obtained exhibited a strong correlation between the high-angle boundaries with misorientations between 20° and 45° and the estimated pinning forces exerted by TiN particles on austenite grain-boundary mobility. The fraction of these high-angle boundaries decreases with increasing temperature during isothermal heat treatments. These observations provide a new view of the unpinning mechanism of second-phase particles and the kinetics of austenite grain-coarsening behavior for different MAE contents.
@article{6a203fc4-437e-4121-bb56-15a1a62f9a27,
title={A NEW VIEW OF THE GRAIN-COARSENING BEHAVIOR OF AUSTENITE AND THE ROLE OF HIGH-MOBILITY BOUNDARIES IN Ti-MICROALLOYED LOW-CARBON STEELS},
author={Victor Blancas-García and Enrique Garcia},
year={2026},
language={en}
}TY - JOUR TI - A NEW VIEW OF THE GRAIN-COARSENING BEHAVIOR OF AUSTENITE AND THE ROLE OF HIGH-MOBILITY BOUNDARIES IN Ti-MICROALLOYED LOW-CARBON STEELS AU - Victor Blancas-García AU - Enrique Garcia PY - 2026 LA - en ER -
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