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Anales (Asociación Física Argentina)
Print version ISSN 0327-358XOn-line version ISSN 1850-1168
Abstract
JODRA, S and CUNIBERTI, A. Calorimetric analysis of formation/dissolution of Guinier-Preston zones in an Al-Zn-Mg Alloy. An. AFA [online]. 2018, vol.29, n.4, pp.133-136. ISSN 0327-358X.
The formation and dissolution of solute clusters, Guinier-Preston Zones (GPZ), in an Al-Zn-Mg alloy are studied using Differential Scanning Calorimetry and Vickers microhardness determinations. The GPZI are formed under aging at room temperature, and its dissolution together with the GPZII formation occurs under continuous heating between 50°C and 150°C. By means of a quantitative analysis of the thermograms, the kinetics of ZGPI formation was evaluated.
Keywords : Al-Zn-Mg; Guinier-Preston Zones; DSC; Microhardness.