The present thesis focuses on the optimization of solution and aging heat treatments for a novel nickel-based superalloy produced by Laser Beam Powder Bed Fusion (PBF-LB). This superalloy was specifically developed for gas turbine applications, which require enhanced creep resistance, excellent high-temperature performance, and low susceptibility to strain-age cracking. Owing to the absence of literature on appropriate heat treatment strategies for this material, preliminary thermal characterization was conducted using differential scanning calorimetry (DSC). As the alloy is intended for critical components that must exhibit minimal residual defects, such as pores or cracks, hot isostatic pressing (HIP) was applied as an essential initial post-processing step to ensure defect healing.