A influência do tratamento de solubilização no maraging 300 produzido por manufatura aditiva

Abstract

Maraging steels are ultra-high-strength steels that have become excellent candidates for additive manufacturing (AM) due to their low carbon content. However, parts produced by AM tend to behave differently than materials produced by conventional processes such as casting. Therefore, it is important to analyze the behavior of additively manufactured Maraging 300 when subjected to treatments commonly applied to conventional manufacturing routes. In order to analyze this behavior, the material was studied along two processing routes that differ from each other due to the presence of the solution annealing treatment. The resulting material was studied using the following techniques: X-ray diffraction, scanning electron microscopy (SEM), hardness and tensile tests. These analyses made it possible to characterize the microstructure resulting from the AM process and to evaluate the changes that occurred during the heat and deformation treatments. In this way, it was possible to verify that the solution annealing treatment commonly used in conventional processes produced similar results to the maraging steel produced by AM, which was subjected only to hot deformation.