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Abstracts:

Ten E.B., Batyshev A.I. Improving of effectiveness the technology of FeSiAl-alloy Sendust melting and casting. Part 1. Optimization of charge composition It is fulfilled the optimization on minimal cost the third variants of charging with using as base of magnetic soft alloy Sendust the ferrous powder, high purity sorts of compacting iron and silicon steels. Analysis of received results showed the next. The variant of using the ferrous powder as base for magnetic soft alloy Sendust melting have a many disadvantages, among them high loss of materials, long melting time and other. During the using of high purity sorts of compacting iron the charge have a high cost. The best result are attained during the composing of charge with silicon steels.
Key words: Magnet-soft alloy, charge for induction melting, minimization of expenses to the charging materials, optimization by linear programming.

Tikhonov A.K. New domestic and foreign steels for automotive parts and an effect of the microstructure on their strength
The article describes some trends in the development of sparingly alloyed steels for automotive parts subjected to carburizing, carbonitriding, and low-temperature nitrocarburizing. Microalloying with Al, S, Ca, and Te was used to improve their processability and strength properties.
Key words: Processing strength, microalloying, electric steel melting, hardenability, carbonitriding, nitrocarburizing.

Popel P.S., Dahlborg U., Calvo-Dahlborg M., Dong X., Brodova I.G., Kurochkin A.R. Hereditary effects in AlSi and AlCu melts and their influence on the structure after crystallization
It has been shown using small angle neutron scattering method that disperse silicon particles inherited from raw materials exist in Al-Si melts at temperatures up to 1200C. The largest of them disperse while heating up to 1200C. Si particles maintain in the crystal structure of the alloys after their quick quenching. The signs of an existence of particles with the concentration of the most high melted intermetallic compound in Al-Cu melts, including stoichiometric concentrations Al50Cu50 and Al67.8Cu32.2, were detected while investigation of their density. It was shown that the structure of Al-Cu alloys formed after their crystallization with cooling rates of the order of 103C/C changes significantly as a result of a homogenizing heat treatment of the initial melts.
Key words: Neutrons, scattering, melts, microparticles, quenching, intermetallic compounds, microstructure.

Ri Hosen, Ri E.H., Goncharov A.V., Ermakov M.A., Nikitin V.I., Nikitin K.V. Distribution of elements in structural composition of alloy VAL10
Variation in the concentration of the components in the structural constituents of the alloy VAL10 depending on different Cu and Cd contents in the alloy was studied. Nanohardness was measured using an atomic force microscope. The presence in the alloy of two components of a-solid solutions containing Cu, Mn and Ti, differing in content and location, was established. Crystals of a1 a solid solution with a lower copper content have a lower nanohardness (980 MPa) than crystals of a2-solid solution (1568 MPa). As a rule, the a1 crystals are distributed in the center of the grain, and the a2 crystals on the eutectic boundary (a mixture of aluminides Al2Cu, Al3Ni, Al6Fe). There are two types of eutectic with different contents of Cu and Cd in the alloy.
Key words: Distribution of elements, solid solutions, eutectic, nanohardness, microhardness, hardness.

Shmuradko V.T., Panteleyenko F.I., Reut O.P., Rudenskaya N.A., Grigoriev S.V. Parts made of ceramic refractory materials for the use in metallurgical processes
Developed and implemented material technological and technological approaches and solutions for the creation of dispensers for tundish continuous casters and ceramic supporting rollers, ensuring high quality production of metal products and, in particular, metal cord at BMZ the management company of BMK Holding Company, have been developed and implemented.
Key words: Zirconia, corundum, refractory concrete, insert, body, beaker, production method, continuous casting machine, structural ceramics, supporting roller, metal cord.

Makarov G.S. Current issues and prospects of Aluminium recycling in Russia
Overview of new equipment, technologies and materials presented at the 7th International Conference Aluminum-21/Recycling is given. Changes in the Russian aluminium recycling industry over the last decade are described: reduction in the number of enterprises, low quality level of alloys, growing trends at some enterprises to manufacture products with an increased value-added costs, improvement of the juridical base, continuous depletion of the base of raw materials subjected to the recycling. It is shown that the prospects of production of Russian secondary aluminum alloys is closely related to the refocusing of the primary aluminium production from the export commodities both on the development of high value-added products manufacturing and an increase in the domestic consumption of aluminium products.
Key words: Secondary aluminium, aluminium recycling, scrap recycling, shredding, sorting, melting of alloys, aluminium consumption.

Titova Y.V., Amosov A.P., Maydan D.A., Latukhin E.I. Application of SHS auxiliary reaction of titanium carbide for introduction of AlN, Si3N4, BN nanoparticles into Al-melt
For ex-situ introduction of AlN, Si3N4, BN nanopowders, obtained by azide technology of self-propagating high-temperature synthesis (SHS),into the aluminum melt, an exothermic master powder composite (EMPC) of different composition (AlN/Si3N4/ BN)-(Ti+C)-Na2TiF6 was first used, leading to the realization of in-situ process of SHS of reinforcing phase TiC in the combustion mode in the aluminum melt. The conditions were found for reliable ignition of the EMPC and fabrication of cast hybrid nanocomposites Al-AlN(Si3N4, BN)-TiC with an increased content of AlN(Si3N4,BN) reinforcing phase.
Key words: SHS, sodium azide, aluminum nitride, boron nitride, silicon nitride, nanopowder, cast composit.

Khakimov A.M., Zhatkin S.S. Wear resistance of high-temperature powder solders based on nickel after the pulsed laser cladding
This article presents an analysis of the effect of heat treatment on the change in wearresistant properties of high-temperature Nickel-based solders after laser pulse surfacing. Recommendations on the choice of the optimal material for the restoration of the turbine engine blades of the gas turbine engine from the alloys of ZHS6-K are formulated.
Key words: Laser, surfacing, high temperature solder, properties, wear resistance, quality.

Tkachenko S.S., Yemelyanov V.O., Martynov K.V. Substantiation of the need for modular production of basic parts of machine tooling units
The article presents an engineering analysis of a fragmented lathe frame. Examples of the use of modular equipment are given.
Key words: Modular equipment, machine tool engineering, engineering analysis, cloud technologies, automatic production.



Table of Content:

Melting. Melt Treatment

Ten E.B., Batyshev A.I. Improving of effectiveness the technology of FeSiAl-alloy Sendust melting and casting. Part 1. Optimization of charge composition

Modern Materials

Tikhonov A.K. New domestic and foreign steels for automotive parts and an effect of the microstructure on their strength

Popel P.S., Dahlborg U., Calvo-Dahlborg M., Dong X., Brodova I.G., Kurochkin A.R. Hereditary effects in AlSi and AlCu melts and their influence on the structure after crystallization

Ri Hosen, Ri E.H., Goncharov A.V., Ermakov M.A., Nikitin V.I., Nikitin K.V. Distribution of elements in structural composition of alloy VAL10

Shmuradko V.T., Panteleyenko F.I., Reut O.P., Rudenskaya N.A., Grigoriev S.V. Parts made of ceramic refractory materials for the use in metallurgical processes

Makarov G.S. Current issues and prospects of Aluminium recycling in Russia

XXI Century Technologies

Titova Y.V., Amosov A.P., Maydan D.A., Latukhin E.I. Application of SHS auxiliary reaction of titanium carbide for introduction of AlN, Si3N4, BN nanoparticles into Al-melt

Khakimov A.M., Zhatkin S.S. Wear resistance of high-temperature powder solders based on nickel after the pulsed laser cladding

Tkachenko S.S., Yemelyanov V.O., Martynov K.V. Substantiation of the need for modular production of basic parts of machine tooling units



Number 1, 2019

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, 2019
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