The paper presents the results of the study of microstructure and chemical composition of the domestic analogue of heat-resistant nickel alloy GTD111 obtained by selective laser melting (SLM). A detailed study of the morphology of the powder used in the process, as well as an analysis of the structure and phase composition of the obtained samples were carried out. Special attention is paid to the influence of alloying elements, such as tantalum, on the formation of topologically close-packed phases and their distribution in the alloy. The results of the work demonstrate the compliance of the chemical composition of the final material with the initial specifications, and also emphasize the importance of adjusting the chemical composition to optimize the properties of the alloy. The obtained data allow us to draw conclusions about the prospects of application of rhenium-free nickel alloys in high-temperature conditions, as well as the potential of using SLM technology to create topologically complex and thermostable structural materials.