Karl Franzens University Graz | Graz University of Technology | |
Modelling of softening processes during hot deformation of metals During the processing of metallic materials at relatively high homologous temperatures, hardening and softening processes interact by the production and annihilation of dislocations as well as by the formation of unstrained new grains. Recovery and recrystallization compete, the latter is more pronounced in alloys with relatively smaller stacking fault energy. Besides the classical primary recrystallization, i.e. cold deformation and annealing, dynamic, meta-dynamic as well as static recrystallization occur during the hot deformation and in the interpass time. |