Please use this identifier to cite or link to this item: http://hdl.handle.net/2381/39260
Title: Modelling of Secondary Dendrite Arms Evolution during Solidification by a Phase-field Method
Authors: Zheng, Q-W.
Jing, T.
Dong, Hong-biao
First Published: 25-Jun-2015
Presented at: Joint 3rd UK-China Steel Research Forum & 15th CMA-UK Conference on Materials Science and Engineering
Publisher: Elsevier
Citation: Materials Today: Proceedings, 2015, 2, pp. S466-S473
Abstract: Mechanical property of cast metals is strongly dependent on solidification structure, in particular the secondary dendrite arms spacing. In this study a Phase Field Method was used to simulate the evolution of dendritic structure with coupled heat and solute diffusion during solidification. Coarsening and remelting of the secondary arms were simulated. It is found that (1) the base of the secondary arms doesn't decrease as coarsening theory predicts and the arms spacing keeps unchanged when the arm grows into a steady state, but the volume of the arms increases; (2) both remelting of secondary arms and coarsening of secondary arms can be observed, which agrees with the coarsening theory and experiment observations.
DOI Link: 10.1016/j.matpr.2015.05.063
eISSN: 2214-7853
Links: http://www.sciencedirect.com/science/article/pii/S2214785315001340?via%3Dihub
http://hdl.handle.net/2381/39260
Version: Publisher Version
Status: Peer-reviewed
Type: Conference Paper
Rights: © 2015 Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/3.0/)
Appears in Collections:Conference Papers & Presentations, Dept. of Engineering

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