A systematic study on the phase transformation behavior in a polycrystalline Ni–Ti–Fe shape memory
alloy is reported. The investigation was carried out through series of differential scanning calorimetry
(DSC) tests on three different samples with distinctly different microstructures of the alloy processed
through different thermo-mechanical routes. The applied procedures involved cold rolling and marforming (rolling in liquid nitrogen) followed by short annealing treatments to recover the cold worked
microstructure. These treatments altered the microstructure in terms of grain size, misorientation
(defects) and texture. Three different microstructures were generated through adopted deformation processes (i) lower degree of texture, (ii) textured and (iii) refined grains with texture. The influence of the
microstructural parameters on the phase transformations in terms of transformation temperature (TT)
and associated energy of absorption/release was investigated. Temperature of transformation (TT)
between different samples was affected predominantly by the grain size difference while enthalpy of
transformation (austenite M martensite) was mainly due to differences in texture, stored energy and
in-grain misorientation. Though the differences in TT and enthalpy were not very significant, these
results form a guideline for microstructure tailoring of bulk scale manufacturing of these alloys.