Abstract
Modern technologies used for the synthesis of various alloys, including aluminum-based metal-ceramics, require detailed and comprehensive studies, especially in the case of alloys that have not yet found widespread industrial application due to a lack of sufficient scientific data. The Al-Fe-Si alloy system is of particular interest due to the simplicity of its composition and the wide variety of phases that form depending on the ratio of the alloy’s base components. The intermetallic Al-Fe-Si metal-ceramic alloy, with an increased simultaneous content of both iron and silicon, was synthesized by arc surfacing with a consumable electrode. This article presents experimental studies of the metallographic analysis of the Al-Fe-Si alloy, enriched with both iron and silicon, along with manganese additives. Studying the effect of manganese in this specific alloy composition allowed for an in-depth assessment of the morphology of intermetallic compounds, phase distribution, and overall structural stability. Preliminary phase composition modeling helped identify the phases in the synthesized alloy. It was found that a minor addition of manganese could stabilize the microstructure and result in the formation of coalesced intermetallic particles. Further investigation of its effects on phase transformations and structure will provide insights into optimizing compositions for broader applications in conditions of high loads and temperatures.