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Temperature dependence of residual tensile stress in the film showing relaxation due to martensitic transformation. The thin lines represent a tangential method of the determination of the transformation temperatures.
Selected X-ray diffraction patterns at different temperatures showing a conversion of 220-type peaks between martensite and austenite.
Evolution of the lattice parameters a and c of 10 M tetragonal martensite during heating showing a transformation into the cubic austenite (a 0).
Temperature dependence of the martensitic lattice distortion, c/a (a) and unit cell volume of austenite, V a, and martensite, V m (b) during heating calculated using data in Fig. 3 . Whereas the behavior of lattice distortion is reminiscent to the one in a bulk, a large volume contraction during transformation from martensite to austenite is inverse in comparison with the volume expansion observed in bulk Ni-Mn-Ga alloys.
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