Research on Microstructure and Mechanical Properties of AZ31B Magnesium Alloy Formed by Differential Temperature Shear Spinning
The differential temperature shear spinning experiment of AZ31B magnesium alloy sheet was carried out at the forming temperature of 100-300℃,and the effect of temperature on the microstructure and mechanical properties of the formed workpiece was analyzed and studied.The results show that AZ31B sheet has good differential temperature shear spinning formability at 150-300℃;when it is deformed at 150℃,deformation twins are dominant in the microstructure of the workpiece,and submicron recrystallized grains are distributed at the grain boundaries.With the increase of temperature,the volume fraction of recrystallization increases.When it is formed at 250 and 300℃,a fully dynamic recrystallization structure is obtained.The workpiece formed at 200℃obtains the best comprehensive mechanical properties,and the workpiece spinned at 150℃has the highest strength.
AZ31B magnesium alloydifferential temperature shear spinningmicrostructure and mechanical properties
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