|About this Abstract
||2021 TMS Annual Meeting & Exhibition
||Deformation Induced Microstructural Modification
||Investigation of path dependent microstructural evolution in Cu-Nb system processed via friction consolidation
||Mageshwari Komarasamy, Xiao Li, Scott A Whalen, Xiaolong Ma, Nathan Canfield, Matthew J Olszta, Tamas Varga, Glenn J Grant, Suveen N Mathaudhu
|On-Site Speaker (Planned)
Understanding microstructural evolution in an advanced manufacturing process is crucial to paving the way towards science-aided manufacturing technology. In the current investigation, microstructural development in immiscible Cu-xNb (x=4, 10, and 50wt. %) alloys processed via friction consolidation of elemental powders was carried out. Friction consolidation is a solid phase processing technique that imparts severe strain into the deforming volume at elevated temperature. Two distinct processing conditions were chosen to understand the effect of thermomechanical pathways on the final microstructure. The microstructure was characterized using scanning electron microscopy, scanning transmission electron microscopy, and X-ray diffraction techniques. Significant differences in microstructural evolution between the two paths with respect to Cu grain structure and Nb particle size were noted. Furthermore, a brief discussion on mixing mechanism is presented based on deformation, thermodynamic and kinetic factors.