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Abstracts:

Afanasyev A.Y., Duzhenko A.A., Ivashchenko A.V., Nikitin K.V. Use of Master Alloys in the Production of Ingots from Wrought Al Alloys
At ZAO Alkoa SMZ they studied the effectiveness of alloying and inoculatingadditives supplied by various producers, as well as the influence of those additives quality on the properties of wrought blanks produced.
Key words: Wrought aluminum alloys, alloying, inoculation, return of own production, ingot structure.

Kolesnikov M.S., Mukhametzyanova G.F. Structure formation centrifugation and cast iron crystallization
Based on analysis of existing theories and results, research centrifuge pre and hypereutectic cast iron melting is a diagram of the formation of graphite during cast iron crystallization. The possibility of globular graphite formation without the use of modifiers and technology for producing composite castings for sliding bearings by centrifugal casting is shown.
Keywords: Cast iron, graphite, cementite, ?-carbide, pre and hypereutectic cast irons, centrifugation,crystallization, the critical nucleus, the melt eutectic, diffusion.

Chumanov I.V. On The Choice of Knife Steel
The author tells us about the possibility of applying for the manufacture of knives, unconventional materials. A comparative analysis of steels 40102 (107), 10013 (515), 95-11018- and describing their advantages and disadvantages.
Keywords: Cold steel, thermal treatment, unconventional materials.

Shakina A.V., Fadeev V.S., Shtanov O.V. Wagon brakeblock frictional metal-sintered material development
The methodology for wagon brakeblock frictional metal-sintered material development is presented. The results of developed frictional materials friction tests with aim to determine their wear resistance and friction coefficient are shown. The difference in developed materials properties are explained on the base of microstructure analysis. The developed materials and used at present brakeblocks materials cast iron and polymer composite TIIR-300 are compared from inherent wear resistance, brakeage efficiency and counterbody affecting point of view.
Key words: Metal-ceramic braking shoe, pearlite, ferrite, carbides, frictional material, friction coefficient, wear.

Trudonoshin A.I., Mikhalenkov K.V. Eutectic Spheroidization in Cast Al-Mg-Si-Mn Alloys during Homogenization
Old class of light-weight casting alloys of the system AlMgSiMn recently has been returned to the foundry practice for producing of car parts. In as-cast state alloys with nominal composition AlMg7Si3Mn and AlMg5Si2Mn contains three phases: ?-Al solid solution, (Al)+(Mg2Si) eutectic and Mg2Si primary crystals. By metallographic examinations it was established that during solution treatment (Al)+(Mg2Si) eutectic tends to spheroidisation. Using shape instability model it has been calculated that complete spheroidisation take place after 60 minutes soaking. Modeled results were confirmed experimentally.
Keywords: Cast AlMgSi aluminium alloys, DSC, eutectic morphology, modeling.

Zhatkin S.S., Parkin A.A., Nikitin K.V. Directions and Developments of Modern Science-Intensive Laser and Plasma Technologies
In work the review of modern laser and plasmatechnologies is submitted and prospectsof their application and development, including in the field of modifying of a surface and synthesis of new alloys and connections are shown.
Keywords: Laser and plasma technologies, welding and cladding, it is sharp, microstructuring, a ligature, wear resistance.

Bazhin V.Y. On the Production of Foil Stock from Al Alloys by Ingotless Rolling
The problem of regularity by a crystal structure of sheet strips from the high-alloyed aluminum alloys of AlFeSiMn system in the roll crystallizer closely relative with problems of improvement of quality of a foil and increase in productivity of twin roll casting process is discussed. The structure of foil strip can be presented as the form of information system. Influence of various ways of influence on the melt of a being able solid and liquid phases is considered.
Keywords: Aluminum alloy, the structure, twin roll casting, a dendrite structure, foil.

Kuzmina Y.V., Snigiryov A.I., Zheleznyak L.M., Bokareva A.A. On the Production of Critical Bronze Bars for Machine Building
Discussed are the results of implementing at OAO Kamensk-Uralsk Nonferrous MetalsMachining Plant a program of organizing commercial production of newly adopted article types of high quality level from the following bronzes: tin-phosphor bronze, chromium bronze, and chromium-zirconium bronze, tinless hard-to-deform bronzes. The products are successfully used by Russian and foreign machine-building plants.
Key words: Bronzes, wide grade and size range, difference of process flowsheets, commercial production, compliance with normative document requirements.

Khoroshilov O.N. On Testing Cu-Alloy Specimens in the Temperature Range of Blank Shaping
The tests methods of copper alloys specimens in temperature diapason for formation of billetcrystallization of machine for continuous casting at (0,90,95)TL are worked out. The given temperature diapason is being characterized with increasing deformation speed in 2000 times as much in comparisonspeed in temperature diapason (0,30,5)TL, in which the deformation of constructional materials in exploitation continuous.
Key words: Copper alloys, billet, deformation, temperature diapason, formation of billet, testing machines, heating speed of billet.

Ashkeyev Zh.A., Sarkenov B.B., Bukanov Zh.U., Tuyskhan K. Microstructure Analysis of Metal Produced by Casting and Punching
The article presents the results of examining the microstructure of metals produced by casting and punching in equal-channel stepped dies (ECSD). Analysis of the examination results showed that on the inclined area of the ECSD there emerge shear bands that extend virtually in parallel to the dies channel connection areas and beneficially influence the closure and welding of all internal casting defects. The shear bands emerge owing to realization of intensive shear deformations on the ECSDs inclined area II II.
Key words: Microstructure of metals, scanning electron microscope, transmission electron microscope, shear bands, joint areas, closure and welding of defects, ECSDs inclined area.



Table of Content:

Afanasyev A.Y., Duzhenko A.A., Ivashchenko A.V., Nikitin K.V. Use of Master Alloys in the Production of Ingots from Wrought Al Alloys

Kolesnikov M.S., Mukhametzyanova G.F. Structure formation centrifugation and cast iron crystallization

Chumanov I.V. On The Choice of Knife Steel

Shakina A.V., Fadeev V.S., Shtanov O.V. Wagon brakeblock frictional metal-sintered material development

Trudonoshin A.I., Mikhalenkov K.V. Eutectic Spheroidization in Cast Al-Mg-Si-Mn Alloys during Homogenization

Zhatkin S.S., Parkin A.A., Nikitin K.V. Directions and Developments of Modern Science-Intensive Laser and Plasma Technologies

Bazhin V.Y. On the Production of Foil Stock from Al Alloys by Ingotless Rolling

Kuzmina Y.V., Snigiryov A.I., Zheleznyak L.M., Bokareva A.A. On the Production of Critical Bronze Bars for Machine Building

Khoroshilov O.N. On Testing Cu-Alloy Specimens in the Temperature Range of Blank Shaping

Ashkeyev Zh.A., Sarkenov B.B., Bukanov Zh.U., Tuyskhan K. Microstructure Analysis of Metal Produced by Casting and Punching



Number 3, 2014      Number 5, 2014

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, 2015
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