Effects of Crystal Orientation on Deformation Twinning and Dislocation Slip in Single Crystal Micro-pillars of a Twinning-Induced Plasticity Steel

Deformation twinning and dislocation slip in twinning-induced plasticity (TWIP) steels have been shown to depend strongly on the crystal orientation, yet the underlying mechanism is still unclear. Here, we addressed this question by fabricating single crystal micro-pillars with six different crystal orientations in a coarse-grained TWIP steel sample and then conducting compression tests as well as microstructural characterization in these...