Malyarov A.I., Burtsev D.S., Kondratiev S.A. Modernization of the SELT-001-15/18 high-frequency heating melting unit
The experience of operating a high-frequency heating plant with a melting capacity of 3 kg for copper and upgrading this plant into a melting and casting device for cast iron with the same metal capacity is described.
Keywords: High-frequency melting furnace, capacity, operation, modernization, copper, iron.

Rovin S.L., Rovin L.E. Constructive features of rotary furnaces
The article deals with the design of rotary tilted melting furnaces (RTF), modeling of operation and calculation of the most loaded components and structural elements of these units. The results of the development and analysis of the operating experience of RTF used for processing various dispersed materials are presented. Recommendations for choosing optimal design solutions for rotary furnaces for recycling dispersed metal waste are given.
Keywords: Rotary furnaces, construction, operation, strength, reliability, dispersed materials, recycling, metal wastes.

Tsydenov A.G., Finogeev A.S., Belov N.A. Experience of industrial testing of aluminum alloy with the addition of zirconium, prepared on the basis of secondary (canned) raw materials
The features of the preparation of an aluminum alloy microalloyed with zirconium made of scrap (aluminum cans) are considered. The equipment used and blanks for the subsequent deformation processing are described.
Keywords: Aluminum alloys, composition, structure, application, melting, scrap.

Knyazev S.V., Lubjanoj D.A., Mamedov R.O. Steelmaking in a small arc furnace
The results of a research on the technology of steel melting in an electric arc furnace of 1.5 tons in capacity are presented. Attention is drawn to the role of the oxidation period of melting and heat treatment of the melt at high temperatures in obtaining high-quality low-alloy steel.
Keywords: Low-alloy steel, melting, melt, heat treatment, quality, castings.

Davydov S.V. Diagram of the state of alloys the system iron-carbid ?-Fе₂C. Part III. Phase equilibriums in the carbide region “iron-carbon” diagrams
In the present work the complete diagram of the system "iron-carbide ?-Fe₂C" in the range of 0...9,7%C is offered. The following phase transformations are introduced in the diagram: Cementite O-Fe₃C crystallization follows the reaction of the peritectic type of nonvariant threephase synthetic equilibrium; Hegg carbide ?-Fe₅C₂ crystallization is described in the framework of transformation following the reaction of nonvariant three-phase peritectic equilibrium; lowtemperature peritectoid-type carbide transformation in which the solid solutions of ferrite and cement form a solid solution of a wide area of homogeneity based on bertollide ?-karbide Fe₂C; the carbide phase is crystallized as a mixture of carbide phases as a quasi-eutectic.
Keywords: Iron carbon diagram, cement O-Fe₃C, Hegga carbide-Fe₅C₂, Extreme-Adcoccus carbide ?-Fe₇C₃ and ?-Fe₂C carbide, iron carbides, ledeburitis, austenite.

Cheiliakh А.P., Malysheva I.E., Cheiliakh Ya.A. Influence of hardening modes on the structure and properties Cr-Mn-steels
The work establishes the differentiation of increasing wear resistance under different wear conditions (adhesive, abrasive, shock-abrasive in two schemes and different dynamic factors) under the influence of the quenching modes of Fe-Cr-Mn steels, which cause different content and metastability of austenite.
Key words: Hardening, steel, hardness, wear resistance, deformation martensite transformation, metastable austenite.

Filatova N.K., Kabanov A.A., Golovin A.V. Melting of titanium, zirconium and hafnium
The fundamentals of the technology of melting and casting of titanium, zirconium and hafnium and alloys on their base with the use of vacuum arc and electron beam units are presented. The main charge materials and alloying methods are considered.
Keywords: Titanium, hafnium, zirconium, melting, alloying, casting, ingots, castings.

Kazannikov O.V., Popov E.V., Markin A.A. Application of a mechanized method of electrical discharge alloying for reconditioning the machine- and machinery shafts
The development of modern mechanical engineering is associated not only with new materials, but also with the use of new modern technologies that can increase the durability, reliability, and ensure the operability of parts under dynamic and static contact, power, and thermal loads. The reliability and service life of modern parts largely depend on the performance properties of the steels from which they are made. This determines both the development of new and the improvement of already known technologies for the recovery and improvement of their materials by high-energy processing.
Key words: Shafts, axles, mechanized installation, electric spark alloying, electrode holder, reduced energy, mass transfer.

Malyarov A.I., Burtsev D.S., Kondratiev S.A. Modernization of the SELT-001-15/18 high-frequency heating melting unit

Rovin S.L., Rovin L.E. Constructive features of rotary furnaces

Tsydenov A.G., Finogeev A.S., Belov N.A. Experience of industrial testing of aluminum alloy with the addition of zirconium, prepared on the basis of secondary (canned) raw materials

Knyazev S.V., Lubjanoj D.A., Mamedov R.O. Steelmaking in a small arc furnace

Davydov S.V. Diagram of the state of alloys the system iron-carbid ?-Fе₂C. Part III. Phase equilibriums in the carbide region “iron-carbon” diagrams

Cheiliakh А.P., Malysheva I.E., Cheiliakh Ya.A. Influence of hardening modes on the structure and properties Cr-Mn-steels

Filatova N.K., Kabanov A.A., Golovin A.V. Melting of titanium, zirconium and hafnium

Kazannikov O.V., Popov E.V., Markin A.A. Application of a mechanized method of electrical discharge alloying for reconditioning the machine- and machinery shafts