4.7 Article

In situ study of austenite formation by dilatometry in a low carbon microalloyed steel

Journal

SCRIPTA MATERIALIA
Volume 58, Issue 10, Pages 926-929

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2008.01.019

Keywords

high strength low alloy (HSLA) steel; dilatometry; phase transformations; austenite

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In situ studies of reaustenitization in a low carbon microalloyed steel have been carried out by dilatometry. A model is proposed for describing the temperature evolution of the austenite volume fraction and its carbon concentration during continuous heating for various heating rates from dilatometric plots. The model results match metallographic measurements very well and may be applied to the reaustenitization of low carbon steels. (C) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

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