Effect of Prior Cold Deformation on Aging Behavior of AL-2.73wt-% LI Alloy

摘要: ABSTRCT The effect of prior cold deformation on the aging behavior Al-2.73 wt-% Li alloy was investigated. specimens were solution treated at 848K for 20 minutes followed by water quenching, then rolled to various reductions in thickness, and finally, aged 473K 523K 0 104 minutes. results show that precipitation processes are accelerated hardness values improved through deformation. observations transmission electron microscopy indicate dislocation density thermomechanically is increased, therefore nucleation δ′ phase promoted. particles become finer more dispersive due deformation, leading an enhance work hardening.