Research progress in material system of aluminum alloy fabricated by selective laser melting
With high specific strength and great corrosion resistance,aluminum alloy proves to be the most widely used metal material in industrial production and is used to produce various complex structural parts.Selective laser melting(SLM)technology has strong ability of customized forming as well as high processing accuracy and short production cycle,which can greatly promote the fabricating and application of aluminum alloy components.In this paper,recent research progress of SLM aluminum alloys was introduced,including a brief description of the process defects and its formation mechanism.By focusing on the microstructure evolution and mechanical properties of different alloys,the paper emphatically analyzed the influences of elements on the micro-morphology and strengthening effect with different alloy systems.In view of the application status and barriers of selective laser melting aluminum alloy,it was pointed out that the key to achieving popularization lay in the balance of forming performance and mechanical properties through composition design.
selective laser meltingadditive manufacturingaluminum alloymaterial system