Temperature-dependent behavior of CP-Ti interpreted via self-consistent crystal plasticity simulation

A commercially-pure titanium sample was investigated using an elasto-visco-plastic self-consistent polycrystal model. Temperature-dependent plastic deformation behavior was described by a dislocation density-based hardening model. The model reasonably reproduced various experimental behaviors, including stress vs. strain curves, diffraction lattice strains, twin volume fraction, and crystallographic texture. The temperaturedependent behavior was interpreted based on the dislocation evolution rules comprised of dislocation generation and recombination in accordance with the Kocks-Mecking rule. The modeling results successfully provided an in-depth interpretation of mechanical behavior of alpha-titanium under a wide range of temperatures.

Automated summary

This study investigated a commercially pure titanium sample using an elasto-visco-plastic self-consistent polycrystal model. The temperature-dependent plastic deformation behavior was described using a dislocation density-based hardening model. The model successfully reproduced various experimental behaviors and provided an in-depth interpretation of the mechanical behavior of alpha-titanium under different temperatures.