Prediction of Microstructure and Distribution of Solute in Al-Zn-Mg Non-Dilute Alloys |
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| Journal | Materials Science Forum (Volume 560) |
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| Volume | Advanced Structural Materials III |
| Edited by | H. Balmori-Ramirez, J.G. Cabañas-Moreno, H.A. Calderon-Benavides, K. Ishizaki and A. Salinas-Rodriguez |
| Pages | 73-78 |
| DOI | 10.4028/www.scientific.net/MSF.560.73 |
| Citation | José Luis Soto et al., 2007, Materials Science Forum, 560, 73 |
| Online since | November, 2007 |
| Authors | José Luis Soto, B. Campillo, J.A. Juarez-Islas |
| Keywords | Ingots, Microstructure, Prediction, Solidification, Solute |
| Abstract | The microstructure of directional solidified Al-Zn-Mg alloys is characterized and predicted by means of thermal analysis data, multicomponent equations for dendrite growth and data from ternary AlZnMg phase diagram. The resulting microstructure consists of α-Al dendrites with τ precipitates and eutectic in interdendritic regions. Predictions show that at growth velocities up to 9 x 10-4 m/s, the α-Al and τ intermetallic grew simultaneously. Predictions for solute concentration according to the model for dendrite solidification of multicomponent alloys with unequal liquid diffusion coefficients show a good agreement with experimental results. |
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