|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Material Design Approaches and Experiences IV
||A Novel Computational Tool Linking Microstructure and Properties for Thermomechanical Processes
||Pengyang Zhao, Thaddeus Song En Low, Yunzhi Wang, Stephen Niezgoda
|On-Site Speaker (Planned)
The interplay between microstructure evolution and properties during processing constitutes a major effort in alloy design, traditionally requiring challenging experiments in situ under processing conditions. While mature computational tools exist to study separately the microstructural evolution and mechanical properties of heterogeneous materials, integrated models are highly designed for accelerated evaluation during approaches such as ICME. We present an integrated modeling scheme that couples the mechanical response with the underlying microstructure evolution, and apply this novel scheme to the 3D full-field simulation of dynamic recrystallization (DRX) in f.c.c metals as our first demonstration. The adoption of a dislocation-based crystal plasticity model and a stochastic DRX nucleation model allows us to explore the underlying physics associated with DRX nucleation and growth in conjunction with the stress/strain and dislocation evolution during the hot deformation. The quantitative agreement with experiments suggests a great potential for applications to practical material design.
||Planned: TMS Journal: JOM