Experimental study of the superplasticity of mg alloy

摘要

Superplasticity is the phenomenon of the metallic material deforming without necking up to several hundred percents or sometimes a few thousand percents in the tension test under some special strain rate-temperature ranges. In this research work, the super-plasticity was investigated by applying the load of axial force or torque to the thin-walled tubular specimen of AZ31Mg alloy. As a result, several unique deformation phenomena have been observed.