A Comprehensive Review of Studies on Impression Creep Behavior of Magnesium-Zinc Alloys

Mg-Zn alloys system due to the hardening ability have a crucial importance, therefore many researches have been done to increase creep resistance and maintain the alloy strength at elevated temperature. Some researches has been done about the effect of alloying elements, heat treatment and improving mechanical properties. In these studies, the effect of alloying elements with different weight and different heat treatment cycles on microstructure and mechanical properties have been studied. Investigation has been done mainly by optical microscopy, hardness, tensile and impression creep. The results of these study showed that alloying elements can be created high thermal stable compounds with and high creep resistance increase. On the other hand, solutionizing and aging treatment can cause grain refinement and precipitation dispersion. Because, dispersion barriers against motion of dislocations, they can increase creep resistance.