Texture and microstructure of HPT-processed Fe-based shape memory alloys

Texture Formation in a Polycrystalline Fe–Ni–Co–Al–Ti–B Shape Memory Alloy

“…In the case of shape memory alloys (SMAs), not only mechanical but also shape memory properties, including superelastic (SE) strain and critical stress for stress-induced martensitic transformation, are significantly affected by the direction of applied external fields because of anisotropy; [2][3][4] therefore, a number of studies on texture control have already been reported to maximize the capacities of SMAs in some alloy systems. [5][6][7][8][9][10][11] In polycrystalline Fe-Ni-Co-Al-based shape memory alloys, control of the recrystallization texture is significantly important to improve the ductility by suppressing the brittle precipitates of the β-B2 phase at grain boundaries during aging treatment. In this paper, the texture evolution in the recrystallization process was systematically investigated by means of the electron backscatter diffraction (EBSD) method in an Fe-Ni-Co-Al-Ti-B polycrystalline alloy.…”