Time Dependent Deformation Behavior of Tin-Based Bearing Alloy During Transformation

Abstract

#Creep behavior of the Pb-61.9wt%Sn-2wt%Zn ternary alloy has been investigated. Constant tensile stress creep experiments were carried out under constant stresses ranging from 5.3 to 7.802 MPa and at the temperature range from 363 to 433 K. The creep strain rate increases and creep life time decreases as the applied stress level and temperature increase. Scanning electron microscopy analysis was performed on crept as well as uncrept parts of the specimens in order to examine the mechanisms of creep deformation. Grain boundary sliding is the possible creep mechanism within the given stress level and temperature.