Effect of Alloying Elements on Anneal-Hardening Behavior of Aluminum Alloy Foils

摘要

We observed that non-heat treatable Al-Fe-Mn alloy foils exhibit an increase in strength and a decrease in elongation due to low temperature annealing treatment subsequent to cold rolling. In this study, we investigate the effects of alloying elements on this anneal-hardening behavior. The alloys without alloying element of iron were not hardened by low temperature annealing treatment. On the other hand, the anneal-hardening behavior was observed only in Al-Fe based alloys containing manganese or chromium. These results are similar to 'hardening by annealing' reported on severe plastic deformation of metal.