Hot Compression Behavior of New Al-6Mg and Al-8Mg Alloy with Improved Hot Workability Fabricated by Direct Chill Casting Method

A hot compression test of new Al-6Mg and Al-8Mg alloys was conducted to understand the dynamic recrystallization (DRX) behavior by Mg contents. To investigate workability Al-Mg with high contents, deformation analyzed a in temperature range 300–450 °C, strain rate 10?3–100/s. Subsequently, high-temperature investigated through processing map microstructure observation. In this study, results have shown that, as contents increase, maximum yield strength increase while rapid flow softening after peak has been observed due accelerated (DRX). Finally, affects an heat dissipation efficiency be indicator regular deformation.