Abstract
The paper presents the results of the X-ray diffraction study of martensitic transformations B2-R-B19' in a wide temperature range under the simultaneous action of the applied stress in the alloy based on titanium nickelide. Temperature dependences of the crystal structure parameters in phases B2, R, B19' in samples under the action of the external applied stress have been determined. It has been found that heating of a TiNi-based alloy under loading leads to a rapprochement of atomic volumes of coexisting martensitic and austenitic phases.
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