Phase-field study of zener drag and pinning of cylindrical particles in polycrystalline materials
C. Schwarze, R. D. Kamachali, I. Steinbach,
Volume: 106. Pages: 59--65
DOI: 10.1016/j.actamat.2015.10.045
Published: #jan# 2016
Abstract
Zener drag and pinning in composites reinforced with cylindrical
particles is investigated using three-dimensional phase-field simulations.
Detailed systematic studies clarify the effect of relative orientation
of the particle and length/diameter ratio on the kinetics of drag.
It is shown that a combination of local equilibrium at junctions
in contact with the particles, initial driving force of the migrating
grain boundaries, and configuration of the particles within the polycrystalline
matrix determine the intensity and persistence of drag and pinning
effects.