Research and Prospect on Powder Bed Additive Manufacturing of High-performance Magnesium Alloys
Mg alloys are the lightest metal structural materials,possessing low density,high specific strength high specific modulus,and degradability.Traditional manufacturing methods(casting,extrusion,etc.)struggle to produce complex geometries in a single step,necessitating secondary processing and resulting in defects such as porosity and oxide inclusions,leading to inferior mechanical properties.Powder Bed Additive Manufacturing(PBAM),as a rapid prototyping technology,has been widely used to fabricate complex structural metal components,providing a platform for the development and application of Mg alloys.Firstly,the forming defects of Mg alloys during the PBAM process and their performance characteristics were summarized.Secondly,the relationship between PBAM process parameters and the formability and mechanical properties of Mg alloys was explored.Furthermore,the effects of various post-processing methods on the microstructure and mechanical properties of Mg alloys prepared by PBAM were introduced.Finally,the potential future applications of PBAM Mg alloys were discussed.
magnesium alloyadditive manufacturingpowder bed additive manufacturingprocess optimizationperformance optimization