Study of transformation plasticity in tetragonal zirconia polycrystals by moire interferometry

Transformation plasticity in ceria-stabilized tetragonal zirconia poly-crystals due to the stress-induced tetragonal-to-monoclinic martensitic transforma-tion under tension and bending is studied by moire interferometry. The whole fringepatterns including u fields and v fields are acquired. According to these patterns, thedistributions of transformation plasticity in transformation zones are obtained, andthe phenomenon of plastic flow localization for transformation is revealed. The abovework provides a significant experimental foundation for establishing transformationconstitutive relations