J. Phys. IV France 01 (1991) C4-277-C5-282
MICROSTRUCTURAL CHANGES IN STEP-WISE THERMALLY STIMULATED MARTENSITIC TRANSFORMATIONSG. AIROLDI1, 2, G. CARCANO2 and G. RIVA1
1 I.N.F.M., Dipartimento di Fisica, Universita' di Milano, Via Celoria 16, I-20133 Milano, Italy
2 I.T.M.-C.N.R., Area della Ricerca di Milano, Via Bassini 15, I-20133 Milano, Italy
The "Step-wise stimulated Martensite to Austenite Reversible Transformation" (SMART) in NiTi alloys is here examined by means of X ray diffraction spectra detected: 1) before the procedure required to activate SMART; 2) after each step of the procedure; 3) after SMART. Results obtained prove that some specific reflections are affected by the procedure, notably the ones which correspond to the orientations apt to store the highest transformation strains.
© EDP Sciences 1991