Prior Deformation Of Austenite Research Articles

The effects of pre-deformation and temperature of the transformation-deformation behavior of Fe-31%Ni-0.1%C

The influence of prior deformation of austenite at room temperature upon the subsequent mechanical response of the alloy at increasing degrees of metastability is described. The experimental results indicate that the tensile strength, the mean work-hardening rate and the volume fraction of martensite transformed up to necking are primarily controlled by the temperature of deformation. However, the overall extent of uniform deformation is improved if the pre-deformed material is reloaded below its M s σ temperature.