Influence of Pre-Aging on the Artificial Aging Behavior of a 6056 Aluminum Alloy after Conventional Extrusion

In the present study, influence of initial heat-treatment conditions on artificial aging behavior after conventional linear extrusion at room temperature was investigated for precipitation hardening a 6056 aluminum alloy. A solution-annealed condition systematically compared to naturally-aged and pre-aged conditions. Differential scanning calorimetry used analyzing sequence its dependence heat treatment. The natural prior were determined by microhardness measurements as function time. Furthermore, microstructure, dependent induced strain, using optical microscopy transmission electron microscopy. As result pre-aging, following solid-solution treatment, formation stable room-temperature clusters suppressed inhibited. response significantly enhanced achieved hardness strength higher when with equally processed or