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Abstracts:

Malinovsky V.S., Malinovsky V.D., Vlasova I.B. Technological possibilities and industrial operation of versatile dc arc furnaces of the new generation developed by NTF EKTA
The technology and equipment of direct current arc furnaces of the new generation are based on the most complete use of the theoretical basics of metallurgy, accumulated experience of production and operation of other types of furnaces, results of the technological progress in the field of electrical engineering, other fields of science and engineering. High equipment performance is achieved by using the concept of creating an interrelated complex, and using it, technological solutions developed and patented by us when creating the direct current arc furnace equipment.
Keywords: Direct-current arc furnaces, metal quality, charge material, ladle-furnace unit, magnetohydrodynamic stirring.

Feoktistov A.V., Modzelevskaya O.G., Kiselyov V.A., Obanin V.A., Selyanin I.F., Kutsenko A.A. Use of carbonates of alkaline-earth metals for treating cast iron of centrifugal machine ingot molds
This paper deals with effect of modifying the ability of barium-strontium carbonate (BSC-2) in the production of cast iron for the manufacture of molds centrifugal machines on the microstructure of the samples castings, fluidity, hardness, iron, level and type of marriage molds. Analysis parameters given without BSC-2, using BSC-2 class 2 size provided by the manufacturer, and using the BSC-2 guild pulverized by crushing to 5 mm average size. It was established that the modifying effect of the BSC-2 significantly increased in crushing factions class 1 to class 2 to size on the shop floor with the addition of a modifier in the molten iron temperature of not less than c 1390...1400C.
Keywords: modification of cast iron, barium-strontium carbonate (BSC-2), fluidity.

Krushenko G.G. Improving the efficiency of the modifier alloys used in casting aluminum alloys
Describes the technology of modifying the master alloys AlTi and AlZr nanopowder titanium carbonitride TiCN, which leads to the reduction of length present in the particle, respectively, and TiAl3 ZrAl3, and, as a result of processing these alloys melt aluminium size reduction structure.
Keywords: Aluminium, master alloys AlTi and AlZr, size reduction structure, nanopowder titanium carbonitride TiCN.

Afanasyev V.K., Herzen V.V., Korovin G.T., Dolgova S.V., Popova M.V. Hydrogen melt processing techniques to increase the deformability of the aluminum alloy with high silicon content
In this paper we studied aluminum alloys with 15...50% Si. Found that treatment of the melt of hypereutectic alloys AlSi alkali hydrogen decomposition of aluminum, lithium hydride, and small additions of beryllium or completely removed to varying degrees decomposed primary silicon phase separation. An effective way of handling the melt mixture Cu3P + LiH, which to the greatest extent modifies the structure of high-silicon alloys. Application of the method allows for hot plastic deformation of the alloy Al 20%Si with the degree of 90...94% to obtain a high-quality semi-finished products. The results of the work are obtained on the basis of ideas about the leading role of hydrogen in the formation of the structure and deformability.
Key words: Hydrogen, aluminum-silicon alloy, microstructure, deformation, melt processing.

Semenov K.G., Pankratov S.N., Koloskov S.V. Development of modern low-alloy copper alloys for machine building industry
In the work, they examined copper alloys with different combinations of alloying elements in order to propose chemical compositions providing an optimal combination of service and process properties.
Key words: Copper alloys, bronze, brass, alloying elements, electrical and thermal conductivity, heat resistance.

Larionov S.G. Role of magnetic field and condition of cutting edges in improving tool durability
The paper considers the influence of the magnetic field and the condition of the cutting edges of cutting tools.
Key words: Magnetic field, rounding radius, surface microhardness, resistance.

Kleinbug I.P., Zheleznyak L.M., Yezhov Y.A. Improving the quality of continuous-cast ingots of complexly-alloyed brasses and bronzes in the manufacture of semi-finished products for the machine building industry
In order to eliminate the disadvantages of the known sliding crystallizers (SC) and to improve the quality of continuous-cast ingots of complexly-alloyed bronzes and brasses with a wide temperature range of crystallization under production conditions, there was implemented an original SC design that resolved the following problems: assembly, mounting-dismantling and operation of SC have been facilitated, its operational reliability has been ensured, system for feeding a coolant to SC has been simplified, and casting speed and ingot quality have been improved.
Key words: Copper alloys; wide temperature range of crystallization; liability to hot brittleness; continuous casting; two-chamber sliding crystallizer; original design, rig.

Prusov Y.S., Panfilov A.A., Kechin V.A. Production of composite alloys using the SSHTS process
Shown are the technological capabilities of the SSHTS process in the production of composite Al-based alloys by liquidphase methods. Established is the impact of different methods of preparing powder components of the charge on the intensity of interaction.
Key words: Composite alumomatrix alloys, mechanical activation, self-spreading high-temperature synthesis.

Selivanov A.A., Milevskaya T.V., Tkachenko E.A., Doroshenko N.M. Control of the structure of high-strength aluminum wrought alloy during the continuous casting with MHD stirring of the melt
One of these technologies is the process of hixoforming, it is carried out in semisolid state of metal billets, with pre-prepared in the primary crystallization of ingots with the fine globular (non-dendritic) microstructure. A fine non-dendritic structure of the aluminum alloy ingot can be obtained through the application of a magnetohydrodynamic (MHD) melt stirring in a continuous casting of ingots and to provide high technological properties required in processing of ingot into semi products.
Key words: High-strength aluminum wrought alloy, thixotropic non-dendritic structure, MHD stirring.



Table of Content:

MELTING. MELT TREATMENT

Malinovsky V.S., Malinovsky V.D., Vlasova I.B. Technological possibilities and industrial operation of versatile dc arc furnaces of the new generation developed by NTF EKTA

Feoktistov A.V., Modzelevskaya O.G., Kiselyov V.A., Obanin V.A., Selyanin I.F., Kutsenko A.A. Use of carbonates of alkaline-earth metals for treating cast iron of centrifugal machine ingot molds

Krushenko G.G. Improving the efficiency of the modifier alloys used in casting aluminum alloys

Afanasyev V.K., Herzen V.V., Korovin G.T., Dolgova S.V., Popova M.V. Hydrogen melt processing techniques to increase the deformability of the aluminum alloy with high silicon content

MODERN MATERIALS

Semenov K.G., Pankratov S.N., Koloskov S.V. Development of modern low-alloy copper alloys for machine building industry

XXI CENTURY TECHNOLOGIES

Larionov S.G. Role of magnetic field and condition of cutting edges in improving tool durability

Kleinbug I.P., Zheleznyak L.M., Yezhov Y.A. Improving the quality of continuous-cast ingots of complexly-alloyed brasses and bronzes in the manufacture of semi-finished products for the machine building industry

Prusov Y.S., Panfilov A.A., Kechin V.A. Production of composite alloys using the SSHTS process

Selivanov A.A., Milevskaya T.V., Tkachenko E.A., Doroshenko N.M. Control of the structure of high-strength aluminum wrought alloy during the continuous casting with MHD stirring of the melt

Proceedings of the International Scientific-and-Technical Conference Metallurgy 2015 and Metalcasting 2015

ECONOMICS. INDUSTRIAL ENGINEERING

Repik A. Success in the window of possibilities depends on the states and business steps

Titov B. Its up to the State, whether the crisis will be the beginning of a new growth or that of a long stagnation

INFORMATION . CHRONICLE


Number 3, 2015      Number 5, 2015

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, 2015
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