Finite-element analysis of dimensional non-isotropy during phase transformation in microstructurally banded steel

Steels with microstructural bands show dissimilar dilatometric behavior depending on the direction monitored. This behavior was simulated using finite-element analysis combining thermal, elasticity, conventional plasticity and transformation plasticity. The results suggest that transformation plasticity plays a major role in generating the characteristic dilatometric behavior derived from dimensional non-isotropy during transformation.