Reducing cube volume in recrystallized texture by controlling the finishing temperature and rolling strain in Al-5%Mg alloy

Abstract

A research programme aimed at producing weak texture in a strong work hardening alloy, Al-5%Mg has been undertaken. Two strategies are reported. In the first, the effect of hot band finishing temperature is investigated. When the temperature was high enough to produce a recrystallized hot band, subsequent cold rolling and annealing at 300 °C produced a weaker texture compared with annealing at 450 °C. A second approach involved splitting the rolling process into two parts with an intermediate anneal, with both the intermediate and final annealing temperatures as variables. The best results were obtained when the intermediate annealing temperature produced a grain size of 35 μm compared with the lower temperature of grain size 10 μm, and the final annealing temperature was low.