Anomalous Growth of Dislocation Density in Titanium During Recovery

Abstract

It is generally believed, that the dislocation density in cold-worked metals decreases during recovery. Here, we used in-situ synchrotron X-ray diffraction to show that the dislocation density in [[EQUATION]] -titanium increases at the initial stages of heating. Under conditions of low dislocation mobility, the generation of new dislocation decreases the overall level of stresses in the deformed material. This phenomenon was clearly confirmed by classical molecular dynamics simulations. The dislocation reactions and dislocations dynamics were considered in detail.