%0 journal article
%@ 1862-5282
%A Mao, F.,Weidt, M.,Staron, P.,Busch, S.,Stark, A.,Barrales-Mora, L.

%D 2023
%J International Journal of Materials Research
%N 1
%P 53-64 
%R doi:10.1515/ijmr-2021-8585
%T Investigation on the age-hardening behavior of Al–Si–Cu–Mg cast alloys by mechanical testing; microstructural characterization; and a CNGT based precipitation model
%U https://doi.org/10.1515/ijmr-2021-8585
1 
%X In the present contribution, the age-hardening behavior of two commercial Al–Si–Cu–Mg alloys was studied during heat treatments at 200 °C and 240 °C. Size and volume fraction of precipitates were characterized by means of transmission electron microscopy, small-angle X-ray scattering, and small angle neutron scattering. Additionally, tensile tests were performed to evaluate the mechanical behavior. Finally, a multi-component multi-phase classical nucleation and growth theory precipitation model was developed to predict the evolution of Mg- and Cu-containing precipitates and their hardening effect. The simulations were in good agreement with experimental findings.