Shape memory properties and oxidation behaviour of a rapidly liquid quenched Cu-Sn alloy

Rapidly liquid quenched Cu-Sn ribbons were produced and their shape memory properties and oxidation behaviour investigated using thermal analysis, met allography and X-ray diffraction methods. During the heating regime from -7 0 degrees C to room temperature in a DSC instrument, martensite --> austeni te transformation was performed and the A(s) and A(f) temperatures were det ermined as - 16.4 degrees C and -8.4 degrees C respectively. The oxidation behaviour was also determined using TGA. The total oxidation percentages de creased with increasing heating rate, whereas the oxidation rate increased with the heating rate during the heating and cooling times. The shape memor y behaviour of the ribbon samples were also seen after bending in liquid ni trogen and reheating to room temperature. (C) 2000 Elsevier Science S.A. Al l rights reserved.