Recrystallization in Al-Mn-Cr Alloys

Abstract

The recrystallization behaviour of pure aluminium and three Al-1wt per cent Mn alloys containing 0.0,0.1 and o.5 per cent Cr as ternary additions has been studied at 90 per cent deformation and at 300 degree centigrade temperatures. It has been observed that Mn and Cr retard the softening process. The presence of 0.1 per cent Cr is useful in lowering the softening rates, whereas o.5 per cent Cr enhances the softening of the alloy. The results are discussed on the basis of the role of precipitate particles and dissolved solute atoms on recrystallization behaviour.