Study on Densification and Defects of Cu-Cr-Zr Alloy Formed by Selective Laser Melting

Abstract Selective laser melting (SLM) technology features high forming accuracy and a short preparation cycle, providing a significant advantage for shaping complex structural components. Copper-chromium-zirconium exhibits outstanding comprehensive performance and finds wide applications in rocket combustion chambers, automotive inductor coils, nuclear shielding materials, welding electrodes, and other areas. However, due to its low laser absorption rate and high thermal conductivity, the forming process of copper-chromium-zirconium is unstable and prone to forming defects. This study aims to address this issue by employing the response surface method to design process parameters and investigate the impact of these parameters on microstructure and properties, to obtain high-density Cu-Cr-Zr alloy.