Effects of Ce and Homogenizing on Microstructure and Mechanical Properties of ZM21 Magnesium Alloy

摘要

In this paper, ZM21 and ZM21+Ce magnesium alloy extrusion in different processes before homogenization treatment, the microstructure was observed extrusion products and test their mechanical properties, analysis of rare earth cerium and homogenizing influence of annealing process on magnesium alloy ZM21 and mechanism. The results showed little effect on the ZM21 homogenization magnesium alloy, and even degrade the performance of the alloy, magnesium alloy in ZM21 adding rare earth Ce, fine grain size of the alloy than ZM21 alloy, effectively improve the mechanical properties, and with uniform annealing temperature, the grain does not grow along.