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Phase-field simulations of dendrite morphologies and selected evolution of primary {alpha}-Mg phases during the solidification of Mg-rich Mg-Al-based alloys

Abstract

A formulation of solid-liquid interfacial thermodynamic and kinetic anisotropic characteristics for hexagonal close-packed metals is proposed. The two- and three-dimensional dendritic growth of primary Mg in undercooled Mg-Al alloy melts is modeled using the phase-field method, based on a combination of crystallographic lattice symmetry and experimental observations. The morphologies of three-dimensional dendrites are obtained and the calculated results show intricately hierarchical branched structures. The excess free energy of the solution system is based on the Redlich-Kister model.
Authors:
Wang, Mingyue; [1]  Jing, Tao; Liu, Baicheng [1] 
  1. Key Laboratory for Advanced Materials Processing Technology, Ministry of Education, Department of Mechanical Engineering, Tsinghua University, Beijing 100084 (China)
Publication Date:
Oct 15, 2009
Product Type:
Journal Article
Resource Relation:
Journal Name: Scripta Materialia; Journal Volume: 61; Journal Issue: 8; Other Information: Copyright (c) 2009 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Subject:
36 MATERIALS SCIENCE; ALLOYS; ANISOTROPY; CRYSTALLOGRAPHY; DENDRITES; FREE ENERGY; HCP LATTICES; LIQUIDS; MICROSTRUCTURE; MORPHOLOGY; SIMULATION; SOLIDIFICATION; SOLIDS
OSTI ID:
22158942
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 1359-6462; CODEN: SCMAF7; Other: PII: S1359-6462(09)00444-8; TRN: GB09R7061113374
Availability:
Available from http://dx.doi.org/10.1016/j.scriptamat.2009.06.028
Submitting Site:
INIS
Size:
page(s) 777-780
Announcement Date:
Nov 28, 2013

Citation Formats

Wang, Mingyue, Jing, Tao, and Liu, Baicheng. Phase-field simulations of dendrite morphologies and selected evolution of primary {alpha}-Mg phases during the solidification of Mg-rich Mg-Al-based alloys. United Kingdom: N. p., 2009. Web. doi:10.1016/J.SCRIPTAMAT.2009.06.028.
Wang, Mingyue, Jing, Tao, & Liu, Baicheng. Phase-field simulations of dendrite morphologies and selected evolution of primary {alpha}-Mg phases during the solidification of Mg-rich Mg-Al-based alloys. United Kingdom. doi:10.1016/J.SCRIPTAMAT.2009.06.028.
Wang, Mingyue, Jing, Tao, and Liu, Baicheng. 2009. "Phase-field simulations of dendrite morphologies and selected evolution of primary {alpha}-Mg phases during the solidification of Mg-rich Mg-Al-based alloys." United Kingdom. doi:10.1016/J.SCRIPTAMAT.2009.06.028. https://www.osti.gov/servlets/purl/10.1016/J.SCRIPTAMAT.2009.06.028.
@misc{etde_22158942,
title = {Phase-field simulations of dendrite morphologies and selected evolution of primary {alpha}-Mg phases during the solidification of Mg-rich Mg-Al-based alloys}
author = {Wang, Mingyue, Jing, Tao, and Liu, Baicheng}
abstractNote = {A formulation of solid-liquid interfacial thermodynamic and kinetic anisotropic characteristics for hexagonal close-packed metals is proposed. The two- and three-dimensional dendritic growth of primary Mg in undercooled Mg-Al alloy melts is modeled using the phase-field method, based on a combination of crystallographic lattice symmetry and experimental observations. The morphologies of three-dimensional dendrites are obtained and the calculated results show intricately hierarchical branched structures. The excess free energy of the solution system is based on the Redlich-Kister model.}
doi = {10.1016/J.SCRIPTAMAT.2009.06.028}
journal = {Scripta Materialia}
issue = {8}
volume = {61}
journal type = {AC}
place = {United Kingdom}
year = {2009}
month = {Oct}
}