A Material Model for Simulating Volume Changes during Phase Transformations
2007 (English)In: Proceedings of the COMSOL Users Conference 2007 Grenoble, 2007, 648-653 p.Conference paper (Refereed)
The present work describes the first steps in creating a robust material model able to predict volume changes due to thermal expansion and phase transformations. A dilatometer test is simulated starting from room temperature with an original microstructure constituting a mixture of ferrite and pearlite. During heating, the structure transforms to austenite, which upon quenching will transform into martensite. Both thermal expansion and phase transformations will give rise to volume changes which are modeled in the present work. After adjusting the model parameters to experimental data, a simulation of a dilatometer test is favorably compared to experimental data. The successful reproduction of volume changes allows accurate simulations of distortions during industrial heat treatments, which is the aim of the on-going research.
Place, publisher, year, edition, pages
2007. 648-653 p.
Thermal expansion, volume changes, distortion, phase transformation, low carbon steel
Other Materials Engineering
IdentifiersURN: urn:nbn:se:kth:diva-25843OAI: oai:DiVA.org:kth-25843DiVA: diva2:360143
European COMSOL Conference 2007, 23 - 24 October 2007 Grenoble, France
QC 201011022010-11-022010-11-022010-11-02Bibliographically approved