Internal friction of Cu-Zn-Al sape memory alloys above Martensitic transformation.

Harangozo I, Kedves F, Kiss S, Hordos M, Cseresnyés Z, Posgay G (1987) Internal friction of Cu-Zn-Al sape memory alloys above Martensitic transformation. J. Phys. Colloques 48, C8-541-C8-546.

Abstract

The ability of the martensitic transformation of several Cu-Zn-A1 alloys produced under industrial circumstances was studied in detail by internal friction and electrical resistance measurements performed mainly above the temperature range of the martensitic trans- formation. An internal friction peak was found at about 180°C in all alloys. The peak height decreased and the modulus increased during subsequent measuring or after an annealing abo~e the peak temperature. At the same time this heat treatment above 180 C changed also the mar- tensitic transformation ability.

Leibniz-HKI-Autor*innen

Zoltán Cseresnyés

Identifier

doi: 10.1051/jphyscol:1987885