|About this Abstract
|MS&T23: Materials Science & Technology
|Advanced Characterization of Materials for Nuclear, Radiation, and Extreme Environments IV
|Capturing 3D Evolution of Twin Networks in Titanium as a Function of Applied Strain
|Hi Vo, P Pinney, M.M. Schneider, R.J. McCabe, M. Arul Kumar, Carlos N. Tomé, Laurent Capolungo
|On-Site Speaker (Planned)
Deformation twinning (DT) is a primary plastic deformation mechanism in many structural metals. It is a key feature of advanced twinning-induced plasticity (TWIP) metals that exhibit high strength and ductility. However, there is significant and puzzling variability in mechanical properties among these alloys. The key insights lie in understanding the three-dimensional (3D) connectivity and morphology of the transformed networks and their evolution. In this talk, a graph-based architecture is introduced to study the evolution of 3D deformation twin networks as a function of strain. The application to twin networks in cryogenically compressed Ti reveals impressive interconnectivity that has never been observed before using two-dimensional (2D) characterization. Additionally, a graph-based Euclidian measure of distance is introduced to classify the connectivity and topology of these 3D twin networks. This graph-based taxonomy represents an important step toward correlating material design, deformation microstructure, and mechanical performance.