PSEUDOELASTIC BEHAVIOUR AND TWO WAY MEMORY EFFECT IN Cu-Zn-Al ALLOYS C. ROGUEDA, P. VACHER, C. LEXCELLENT, L. CONTARDO and G. GUÉNIN J. Phys. IV France, 01 C4 (1991) C4-409-C4-414 DOI: 10.1051/jp4:1991461