Effects of deformation ratio on the mechanical properties and microstructures changes in an Al-Mg-Si alloy

Authors : Hichem FARH, Rebai GUEMINI, Fares SERRADJ, Karim DJEMMAL

Pages : 117-122

Doi:10.3906/sag-1303-48

View : 33 | Download : 6

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :An investigation has been done to study the effect of deformation ratio and two-step ageing treatment on the microstructure and the mechanical properties in an Al-Mg-Si aluminum alloy. Transmission electron microscopy is used in order to follow the distribution and the morphology of the hardening precipitates. The hardness of the alloy increases with the increasing deformation ratio. The maximum of hardness increases and is shifted to low time with an increase of the deformation ratio. The density of precipitates is more increased and the precipitates become more inhomogeneously distributed when the deformation combines with two-step ageing treatments.
Keywords : Al mg si alloys, deformation ratio, artificial ageing, precipitation