Print Email Facebook Twitter Modeling the Austenite Ferrite Transformation by Cellular Automaton: Improving Interface Stability Title Modeling the Austenite Ferrite Transformation by Cellular Automaton: Improving Interface Stability Author Mul, M.M. Contributor Vermolen, F.J. (mentor) Bos, C. (mentor) Vuik, C. (mentor) Faculty Electrical Engineering, Mathematics and Computer Science Department Numerical Analysis Programme Applied Mathematics Date 2014-09-19 Abstract A three-dimensional mixed-mode cellular automaton model [C. Bos, M. G. Mecozzi, and J. Sietsma. Computational Materials Science 48.3 (2010): 692-699] for the austenite to ferrite transformation in low-carbon steel has been analyzed and improved. A comparison between the new and conventional model has been made and the improvements found are significant. Interface velocity is based on diffusion of carbon atoms and determined by the local density of carbon. A higher grain boundary carbon diffusion coefficient is applied. The conventional model has been revised and stabilized. Real dilatometry tests have been used to mirror the transformation behaviour of the model with reality. For a one-dimensional model it has been shown that the space-discretizing cellular automaton model converges to the space-continuous method of Murray-Landis. Subject phase transformationcellular automatonsteel alloydendrites To reference this document use: http://resolver.tudelft.nl/uuid:31e2ec84-2c4c-45a4-b7ae-06e81303e039 Part of collection Student theses Document type master thesis Rights (c) 2014 Mul, M.M. Files PDF mscThesis.pdf 2.25 MB Close viewer /islandora/object/uuid:31e2ec84-2c4c-45a4-b7ae-06e81303e039/datastream/OBJ/view