Influence of Annealing Conditions on the Austenite Size at the End of Soaking

Autor: Salib, Matthieu, de Diego Calderon, Irene, Ferreira de Melo, Caio, Mendonca e Silva, Luiz Paulo, Arlazarov, Artem
Zdroj: Materials Science Forum; December 2018, Vol. 941 Issue: 1 p562-567, 6p
Abstrakt: Influence of chemical composition (C, Mn and Nb) and soaking temperature on the evolution of austenite grain size from a cold-rolled microstructure was studied on several Advanced High Strength Steels. A wide range of soaking temperatures was used to perform the heat treatments. Characterization of prior austenite grain size from the annealed samples using optical and confocal microscopes, Scanning Electron Microscope and Electron Back-Scattered Diffraction. Comparison of different methods was done to validate the methodology and the results were quite satisfactory. Concomitant effects of Manganese, Niobium, Carbon and of soaking temperature on the prior austenite grain size were analyzed and discussed. Important effect of Mn and Nb was underlined.
Databáze: Supplemental Index