EVOLUTION OF THE TEXTURE OF MARTENSITE ACCORDING TO DIFFERENT THERMOMECHANICAL LOADINGS FOR THE SHAPE MEMORY ALLOY TI-NI 50-50

摘要

Shape memory alloys (SMA) have a one-way or two-way shape memory effect (SME) based on the martensitic transformation, including phase orientation relations, texture and selection of the variants. All these phenomena are greatly influenced by stress, strain and temperature for each alloy. For a given alloy, the thermomechanical loading applied to the sample determine the evolution of the martensitic transformation.