Modeling of columnar-to-equiaxed transition in solidified Al-Si alloys
Paper
Paper/Presentation Title | Modeling of columnar-to-equiaxed transition in solidified Al-Si alloys |
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Presentation Type | Paper |
Authors | Yao, Xiangdong (Author), Wang, Hao (Author), He, B. (Author) and Zhou, X. (Author) |
Editors | Zhong, Z., Saka, H., Kim, T. H., Holm, E. A., Han, Y. and Xie, X. |
Journal or Proceedings Title | Materials Science Forum |
Journal Citation | 475-479, pp. 3141-3144 |
Number of Pages | 4 |
Year | 2005 |
Publisher | Scientific.Net |
Place of Publication | Zurich, Switzerland |
ISSN | 0255-5476 |
1662-9752 | |
Digital Object Identifier (DOI) | https://doi.org/10.4028/www.scientific.net/MSF.475-479.3141 |
Conference/Event | 5th Pacific Rim International Conference on Advanced Materials and Processing (PRICM 5) |
Event Details | 5th Pacific Rim International Conference on Advanced Materials and Processing (PRICM 5) Event Date 02 to end of 05 Nov 2004 Event Location Beijing, China |
Abstract | A Cellular-Automaton Finite-Volume-Method (CAFVM) algorithm has been developed, coupling with macroscopic model for heat transfer calculation and microscopic models for nucleation and growth. The solution equations have been solved to determine the time dependent constitutional undercooling and interface retardation during solidification. The constitutional undercooling is then coupled into the CAFVM algorithm to investigate both the effects of thermal and constitutional undercooling on columnar growth and crystal selection in the columnar zone, and formation of equiaxed crystals in the bulk liquid. The model cannot only simulate microstructures of alloys but also investigates nucleation mechanisms and growth kinetics of alloys solidified with various solute concentrations and solidification morphologies. |
Keywords | CAFVM; columnar equiaxed transition (CET); microstructure formation; modelling; solidification |
ANZSRC Field of Research 2020 | 400510. Structural engineering |
401607. Metals and alloy materials | |
401001. Engineering design | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | University of Queensland |
East China Jiaotong University, China |
https://research.usq.edu.au/item/9zx78/modeling-of-columnar-to-equiaxed-transition-in-solidified-al-si-alloys
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