| Summary: | The prediction of the structures of solidification in binary alloy is important in order to advance in the knowledge of the field itself and in the field of materials in general. The validation and application of the numerical models that are being developed by our group intend to contribute to the expansion of the metallurgy knowledge, since their are few studies in the literature about the prevailing conditions in which the columnar to equiaxial transition (TCE) is produced when the conditions of solidification are horizontal, one-directional and in two different ways of solidification, and when the fonts of solidification of two surace facing each other meet. The present study aimed to solidify horizontally the hypereutectic alloy Zn-10%Al(ZA10) alloy, when heat is predominantly extraction from both extremes of the samples. This gives six interphases of solidification moving in opposite directions (three moving from the right end and the other three from the left): two [liquid/(solid+liquid)], interfaces namely [L/(S/L)] or IE interphases, two [(eutectic+solid+liquid)/solid] interphases, namely [(E+L)/S] interphases or IS.
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COLUMNAR TO EQUIAXED TRANSITION IN Al-Mg AND Al-Zn ALLOYS