Effect of ECAP on Microstructure, Mechanical Properties, Corrosion Behavior, and Biocompatibility of Mg-Ca Alloy Composite

This study investigates the effects of incorporating MgO into magnesium-calcium (Mg-Ca) alloy composites and subjecting them to the equal channel angular pressing (ECAP) process on the resulting mechanical and corrosive properties, as well as biocompatibility. Initially, the incorporation of MgO into the Mg-Ca alloy composites did not yield significant improvements in grain refinement, tensile strength, or corrosion rate reduction, despite exhibiting improved biocompatibility. However, upon subjecting the Mg-Ca-MgO alloy composites to the ECAP process, noteworthy outcomes were observed. The ECAP process resulted in substantial grain refinement, leading to significant improvements in tensile strength. Furthermore, a marked decrease in corrosion rate was observed, indicating enhanced corrosion resistance. Additionally, the biocompatibility of the Mg-Ca-MgO alloy composites improved after undergoing the ECAP process. These findings highlight the synergistic effect of incorporating MgO and employing the ECAP process, providing valuable insights into the development of advanced magnesium-based materials with superior mechanical properties, reduced corrosion rates, and improved biocompatibility.

Automated summary

This study examines the effects of incorporating MgO into Mg-Ca alloy composites and subjecting them to the ECAP process on their mechanical, corrosive properties, and biocompatibility. Initially, incorporating MgO did not result in notable improvements, but the ECAP process led to significant grain refinement, improved tensile strength, reduced corrosion rate, and enhanced biocompatibility. These findings emphasize the synergistic effect of MgO incorporation and ECAP process, providing valuable insights for the development of superior magnesium-based materials.