Anodizing of an AlSi10Mg alloy produced by selective laser melting

In the last years, the processes of Additive Manufacturing (AM) are gaining much research interest because of their precision, and a large variety of designs and materials that can be used. These points are required nowadays in several fields from medical to aerospace. The aim of this work developed in collaboration with the Jönköping University is to analyze the AlSi10Mg alloy obtained by means of Selective Laser Melting (SLM), one of the most diffused additive manufacturing techniques. This process applied to aluminum alloys is appreciated worldwide thanks to the possibility of obtaining infinite shapes with high mechanical properties related to a very fine microstructure The anodizing process can improve the durability of products manufactured by SLM creating a coat. By replicating a condition of usage in a daily environment, wear resistance and corrosion tests can be made on the anodized material. This will provide a detailed overview of the macrostructure and microstructure of the alloys, before and after the anodizing treatment. Finally, the results confirmed the potential properties of this manufacturing technology if compared to traditional foundry technologies.