Evaluation of hardness and precipitation in Zn-modified Al2024 alloy after plastic deformation and heat treatments

Publication date: 25 May 2017
Source:Journal of Alloys and Compounds, Volume 705
Author(s): C.G. Garay-Reyes, L. González-Rodelas, E. Cuadros-Lugo, E. Martínez-Franco, J. Aguilar-Santillan, I. Estrada-Guel, M.C. Maldonado-Orozco, R. Martínez-Sánchez
This paper reports changes in the hardness values and precipitation of the Al2024 alloy when it is modified with Zn addition (0.25, 0.50 and 0.75 wt%) and plastic deformation (hot-50% and cold-5 and 15%). It is reported increases in the hardness values by Zn addition. Furthermore, a double hardening peak with bimodal distribution of precipitates associated with the continuous process of nucleation and growth of the S and S′ phases is observed.



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