Effect of heat treatment on the stress-strain characteristics of Cd-Sn eutectic alloy

Stress-strain curves of slowly cooled and quenched Sn-33wt.% Cd alloy were studied in the temperature range from 353 to 433 K. The coefficient of loga rithmic work/hardening, the fracture time, the yield stress and the fractur e stress of annealed and quenched samples decreased with increasinig deform ation temperature and exhibited a minimum at 393 K. The activation energy o f the fracture mechanism is found to be 5.4 and 12.8KJ/mol characterizing a dislocation mechanism for annealed and quenched samples. The X-ray analysi s of the slowly cooled and quenched samples showed that the residual intern al strains increase in the low temperature relaxation stage and decrease in the second stage.