B2 Intermetallic Compounds of Zr. New Class of the Shape Memory Alloys
Institute of Metal Physics of the National Academy of Sciences of Ukraine, 36 Vernadsky str., 252680, Kiev 142, Ukraine
2 Catholic University of Leuven, de Croylaan 2, 3001 Leuven (Heverlee), Belgium
3 Chosun University, 375 Seosuk-Dong, Kwang Ju 501-759, The Republic of Korea
It is known that the B2 equiatomic intermetallic compounds of Zr (ZrCo-based , ZrCu , ZrRh ) undergo a martensitic transformation (MT) with wide temperature hysteresis. It was found that the MT is accompanied by the perfect shape memory effect (SME) for ZrCu  and ZrRh . In this report we represent the results of structural analysis, electrical resistivity, calorimetric and SME measurements for ZrCu- and ZrCo-based compounds. Interrelation between structural, thermodynamical parameters of MT and SME in this alloys will be described. The shape memory aspects of this potential alloys for the application at high temperatures will be discussed.
© EDP Sciences