Abstract

RANGEL LARA, S.; BERNAL, J. L.  and  ITA DE LA TORRE, A. de. Influencia del cobre en la transformación de fase de la aleación Zn - 22 % p Al, durante la homogenización. Superf. vacío [online]. 2011, vol.24, n.2, pp.68-71. ISSN 1665-3521.

The alloys were produced by smelting and cooled in quiet air to room temperature; the micro structure dendrite type was analyzed in a previous work ^[1]. Samples of obtained alloys were subject to a treatment of homogenization to 375 °C by 120 hours. Modification of the microstructure was observed at 60, 100 and 120 hours in the Zn alloys - 22 % p Al and Zn-22 % p Al - 2 % p Cu. The phases present in alloys were identified by optical microscopy. A differential thermal analysis was made to analyze the phase transformations. It is shown that the copper promotes the transformation of phase in the alloy Zn - 22% p Al - 2% p Cu.

Keywords : Microstructure; Pearlite; Homogenization.