Far Eastern State Transport University, Khabarovsk, Russia

V. М. Makienko, Professor of the Department of Transport and Technological Complexes, Doctor of Technical Sciences, e-mail: mvm_tm@festu.khv.ru

А. V. Ateniaev, Associate Professor of the Department of Transport and Technological Complexes, Candidate of Technical Sciences, e-mail: atenia@mail.ru
А. V. Lukyanchuk, Associate Professor of the Department of Transport and Technological Complexes, Candidate of Technical Sciences, e-mail: AVL80@yandex.ru
S. V. Shadrin, Senior Lecturer of the Department of Transport and Technological Complexes, e-mail: sergio85n18@gmail.com

The results of research on the restoration of machine parts using welding and surfacing materials developed on the basis of mineral raw materials from the Far Eastern region are presented. For the manufacture of electrode coatings, powder wire charges and fluxes, mineral raw materials were used, which include elements suitable for the production of materials providing high technological characteristics (Zr, Mn, W, B, etc.). However, these raw materials are multicomponent, which requires the use of new techniques and methods for creating high-quality materials. As a result of theoretical calculations and experimental studies, mathematical dependences were obtained and diagrams were constructed that make it possible to select the composition of the charge components that provide the required properties and high quality of the formed coatings. Experimental surfacing was performed and bench tests were carried out in order to determine the technological characteristics of the deposited metal. As a result of the research, new welding and surfacing materials were created and tested: fused ceramic flux AN22PK-DMS, PP-Np-130HG-T-S-2.8 powder wire and electrode coating. Laboratory and bench tests have confirmed that the layers deposited with their use are characterized by increased hardness, wear resistance and impact strength. The deposited layers have increased hardness, wear resistance, and impact strength. Microstructural analysis revealed the formation of carbide phases and alloyed ferrous carbide, which causes high mechanical properties. Experimental and comparative tests have shown that the mechanical and operational properties of parts restored with the developed materials comply with the requirements of regulatory documentation.

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