Open AccessThe phase composition, structure and properties of high-temperature-based powders of the system iron-aluminum obtained by the technology of the reaction-mechanical alloying. Foundry production and metallurgy
Author(s) -
Ф. Г. Ловшенко,
А. С. Федосенко
Publication year - 2019
Publication title -
litʹë i metallurgiâ
Language(s) - English
Resource type - Journals
eISSN - 2414-0406
pISSN - 1683-6065
DOI - 10.21122/1683-6065-2019-3-133-141
Subject(s) - materials science , metallurgy , foundry , annealing (glass) , aluminium , particle size , powder metallurgy , phase (matter) , microstructure , deposition (geology) , chemical engineering , chemistry , paleontology , organic chemistry , sediment , engineering , biology
The regularities of the formation of powders based on the Fe-Al system, obtained by the method of mechanical alloying and intended for the deposition of thermal spraying coatings were established. The morphology, structure, phase composition and properties of materials are investigated. After mechanical synthesis, the powders have an average particle size of 30–100 µm, submicrocrystalline structures, and nonequilibrium phase composition. Annealing of powders causes to an increase in the hardness of particles up to 80%, the value of which is largely preserved after prolonged heating to 1170 K, which indicates the presence of heat-resistant materials.