With the growing integration of Additive Manufacturing (AM) technologies in dentistry, understanding the properties of Co–Cr alloys produced by Selective Laser Melting (SLM) has become increasingly important. This work investigates the relationship between microstructure, corrosion and wear behavior of SLM-fabricated Co–Cr alloys, with a focus on printing position and sample geometry. The specimens were produced using the AM–SLM process, and their microstructures were examined using Scanning Electron Microscopy (SEM) and EDS. Corrosion resistance was assessed through AC and DC polarization tests. The results indicate that the electrochemical behavior of the samples is directly influenced by the microstructure formed during the printing process. The geometry and position of the build platform were found to affect the solidification process and heat dissipation rate, resulting in variations in the microstructure. These microstructural differences play a crucial role in determining the electrochemical performance, the stability of the passive film, and its resistance to breakdown under different pH levels in a simulated saliva environment. The relation between microstructure, build orientation, geometry, and electrochemical behavior of SLM-produced Co–Cr alloys will be discussed in detail
