|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Deformation and Transitions at Interfaces
||Effects of Materials and Processing Parameters on the Roughness of Recrystallization Boundaries
||Dorte Juul Jensen, YuBin Zhang, Jun Sun
|On-Site Speaker (Planned)
||Dorte Juul Jensen
It has been shown that boundaries surrounding recrystallization grains often are rough with local protrusions and retrusions, i.e. with boundary segments which have migrated further or less than the nearby segments, respectively. The curvature forces are often large – of the same order of magnitude as the driving forces from the stored energy in the deformed matrix. In this work we present a statistical analysis of the grain boundary roughness as a function of material purity, plastic strain and boundary migration direction for a series of aluminium samples. It is shown that all 3 parameters affect the roughness and also that the roughness is scale dependent. Implications of the results on boundary migration are finally discussed.