Warm and Hot Deformation Behavior of AA6060 Aluminum Alloy

The warm and hot deformation behavior of a 6060 aluminum alloy was investigated through compression tests conducted at temperatures ranging from 100 °C to 400 °C (homologous temperature range of 0.41–0.75) and strain rates of 0.001 and 0.1 s−1. The flow stresses were correlated with strain rate and temperature using a hyperbolic sine equation, and the activation energy was calculated for both deformation regimes. The modeling parameters were linked to the active plastic deformation mechanisms: strain hardening in the warm regime and dynamic recrystallization in the hot regime. A strong correlation between the experimental and calculated data was observed when the equation was applied separately to the stresses measured in the warm and hot temperature ranges.