Recrystallisation textures in copper-manganese alloys

Abstract

Manganese is the only alloying element that does not lower the (normalised) stacking fault energy (SFE) of copper-alloys. Therefore, analysis of the recrystallisation behaviour of Cu-Mn alloys may yield information on the impact of solute atoms on the recrystallisation, independent of the influence of the SFE. For this purpose the progress of recrystallisation is tracked in various Cu-Mn alloys by hardness measurements and X-ray texture investigations. To support the results obtained by macrotexture analysis, and in particular to trace the origin of the recrystallisation texture orientations, local orientation measurements are performed by means of electron back scattering diffraction (EBSD). The recrystallisation textures as well as data on the recrystallisation kinetics of the present Cu-Mn alloys are compared to results obtained in other binary Cu-alloys.