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Abstracts:

Akhonin S.V., Berezos V.A., Pikulin A.N., Severin A.Y., Korniychuk V.D. Production of titanium alloy ingots by electronbeam melting at E.O. Paton IES of Ukraines National Academy of Sciences
Comparative analysis of technological processes of producing titanium alloy ingots by EBCHM and VAR methods was performed. Features of behaviour of alloying elements in titanium alloys and refractory inclusions during EBCHM were studied. Mathematical modeling and experimental methods were used to establish the regularities of aluminium evaporation from titanium alloys at EBCHM. Technological process of producing titanium alloy ingots by EBM is presented. Technology of electron beam glazing of ingot side surface is described. Quality of the produced titanium alloy ingots is examined. Examples of titanium alloy products produced by EBCHM technology are given.
Key words: Electron-beam melting, titanium alloy ingots, alloying elements, flashing the side surface of ingots.

Malyarov A.I. Some features of melting technology in medium-frequency crucible furnaces
Set forth are some technological features of melting in medium-frequency crucible furnaces, which make it possible to melt in them finer lump charge material than in furnaces with machinery frequency converters. It is shown that the use of static frequency converters in allows to substantially reduce the cost of melting 1 t of cast iron.
Key words: Medium-frequency crucible induction furnace, frequency converter, electrical efficiency factor, charge lumps, transient contacts.

Chumanov I.V., Matveyeva M.A. Stabilization of structure of corrosion-resistant steel by titanium in the elecroshlaction of melting
The possibility of stabilizing the carbide phase of the corrosion grade of steel 130 with titanium in electroslag remelting (ESR) is considered in the article. This will reduce the propensity of this alloy to intercrystalline corrosion. In addition, the use of ESR allows refining the remelted material, which also contributes to the increase of corrosion resistance due to the reduction of the number of non-metallic inclusions and the increase in the density of the ingot. The key points proposed for the stabilization of corrosionresistant steels of titanium using ESR are indicated. The simulation data for the optimal composition of the alloy 130 are given.
Key words: Titanium stabilization, electroslag remelting, intergranular corrosion, corrosion-resistant steels.

Eldarkhanov A.S., Saipova L.Kh-A, Nakhayev M.R., Tepsayev A.N. Structure of liquid metal flows in hydrodynamic field of limited space of intermediate ladle MNLZ
Theoretical analysis of the motion of the liquid metal in the intermediate ladle of continuous casting machine was performed. On this basis a package of applied programs for the solution of hydrodynamic task of industrial bucket was developed. There were specified the hydrodynamic parameters of the flow of liquid metal in a confined space of continuous casting machine with the installation of receiving tank for the metal such as TurboStop by method of mathematical modeling.
Key words: Intermediate ladle of continuous-casting machine receiving tank for the metal such as TurboStop, hydrodynamics of liquid metal, refining, zone of contact slag-metal, non-metallic inclusions.

Ospennikova O.G. Creation of a new generation of heat-resistant cast and wrought alloys and steels is the key to successful development of russian engine
Describes the main achievements over the last five years of research and development work,made in FSUE VIAM in the field of creation of new generation of cast and wrought heat-resistant alloys and steels. Improved technology: of isothermal stamping on the air; is the creation of casting heat-resistant alloys based on the aluminides of Nickel; of producing single crystals of the most promising heat-resistant Nickel alloys; of high-heat melting of monocrystalline alloys of new generation; developed high-performance industrial plant UVNS-6 computer control system, etc.
Key words: Intermetallic materials; single-crystal, hightemperature superalloys, natural composites, additive technologies.

Nazaratin V.V., Degtyaryov A.F., Kharina I.L., Nuraliyev N.F. Application of new high-nitrogen Cr-Ni-Mn-Mo-N steel for making castingsy
A new high-nitrogen corrosion-resistant, nonmagnetic cast steel of the type05221582 for the production of ship, petrochemical, gas and other critical equipment has been developed. The crystallization kinetics of that steel in the liquidus-solidus interval have been investigated, its foundry-process properties have been studied. Its composition and heat treatment modes in the whole range of operating temperature have been optimized. It has been shown that the developed steel is not inferior to the best analogs by its foundry-process properties and can be widely used to produce high-quality steel castings of any complexity for ship, petrochemical, gas and other equipment.
Key words: High-nitrogen corrosion-resistant steel, casting, solidification, crystallization, macrostructure, liquation, mechanical properties, heat treatment, temperature, testing.

Luts A.R., Ionov M.K., Rybakov A.D. Possibility of introducing an alloying addition of powdered manganese into the composition of matrix bases of Al and Al-Cu
The article presents the results of experimental studies on the possibility of doping with manganese in an amount of 2 wt% of the Al and Al-5% Cu matrix bases. The possibility of introducing manganese into the melt is shown not in the ligature method, but in the form of elemental powder. Based on the results of the experiment, a high degree of manganese assimilation is recorded by the method of local X-ray spectral analysis. It has also been established that alloying promotes an increase in the strength properties of composite alloys (in particular, in increases from 136 to 169 MPa) while maintaining a high level of plasticity characteristics.
Key words: Aluminum melt, alloying manganese additive, modification, composite material, hardening.

Mishukov A.V., Baburin V.G., Alipov A.N., Potapov V.P. Making aluminum alloy parts by thixomolding from a sleeve
At this work presents the results of development of Semi-Solid forming of aluminum alloys technology for near-net-shape rough parts. Describes the technological solutions and characteristics of the thixomolding process with use of cartridges.
Key words: Thixocasting, semi-solid processing, aluminum alloys, blank production, thixopress, modeling.

Semenov K.G. Technological features of casting production from copper alloys for engineering. Part II. Copper alloys technology
For the production of castings from Cu alloys they use alloys of three main groups: bronze, brass, and Cu-Ni alloys. The new direction of casting production making them from low-alloyed Cu alloys that find ever wider application in the modern high-technology engineering. Discussed are the technological features of casting production from Cubased alloys. Set forth are process regimes of casting in single-use and multiple-use molds.
Key words: Copper alloys, foundry properties, linear shrinkage, fluidity, crystallization range, brass, bronze, low-alloyed alloys, copper-nickel alloys, sand molds, investment casting, chill mold, pressure die casting.

Malinov L.S. Differentiated treatment using concentrated energy sourcesfor reinforcing steel surface
The possibility of reinforcing the surface of steels of different structural classes by differentiated treatment with using of concentrated energy sources due to the receipt on the surface of areas with different structures and properties is shown.
Key words: Differentiated treatment, concentrated energy sources, surface reinforcement, local laser treatment, electron-beam treatment, strengthened zone, microhardness.



Table of Content:

Melting. Melt Treatment

Akhonin S.V., Berezos V.A., Pikulin A.N., Severin A.Y., Korniychuk V.D. Production of titanium alloy ingots by electronbeam melting at E.O. Paton IES of Ukraines National Academy of Sciences

Malyarov A.I. Some features of melting technology in medium-frequency crucible furnaces

Chumanov I.V., Matveyeva M.A. Stabilization of structure of corrosion-resistant steel by titanium in the elecroshlaction of melting

Eldarkhanov A.S., Saipova L.Kh-A, Nakhayev M.R., Tepsayev A.N. Structure of liquid metal flows in hydrodynamic field of limited space of intermediate ladle MNLZ

Modern Materials

Ospennikova O.G. Creation of a new generation of heat-resistant cast and wrought alloys and steels is the key to successful development of russian engine

Nazaratin V.V., Degtyaryov A.F., Kharina I.L., Nuraliyev N.F. Application of new high-nitrogen Cr-Ni-Mn-Mo-N steel for making castingsy

Luts A.R., Ionov M.K., Rybakov A.D. Possibility of introducing an alloying addition of powdered manganese into the composition of matrix bases of Al and Al-Cu

XXI Century Technologies

Mishukov A.V., Baburin V.G., Alipov A.N., Potapov V.P. Making aluminum alloy parts by thixomolding from a sleeve

Semenov K.G. Technological features of casting production from copper alloys for engineering. Part II. Copper alloys technology

Malinov L.S. Differentiated treatment using concentrated energy sourcesfor reinforcing steel surface

INFORMATION . Chronicle


Number 3, 2017

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, 2017
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