Synthesis of iron borides in vacuum from reaction coatings under influence of electron beam

The work was carried out with the aim of developing new methods to produce hard coatings based on iron borides. The main purpose of the work is to simulate the synthesis of iron borides from reaction coatings on carbon steels. With this program, Terra performed a thermodynamic simulation in the range of 373-1873 K for the total system pressure in the range of 105-10-3 PA. The optimal conditions for the synthesis, the formation temperature at different pressures in the chamber in particular are determined. The sequence of chemical transformations occurring in the synthesis of borides, namely, "oxides - carbides - lower borides - higher borides", is established. Thermal properties and the character of Fe2B and FeB borides dissociation depending on the total pressure in the system are simulated. The strength characteristics of the formed boride layers are investigated.