Articles

 


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1.
dx.doi.org/ 10.18577/2307-6046-2016-0-8-1-1
УДК 669.018.292:620.1
Romanenko V.A., Klochkova Y.Y., Klochkov G.G., Burlyaeva I.P.
Extruded panel from aluminum -lithium alloy V-1469

Results of comprehensive investigations of extruded panel from high-strength weldable aluminum-lithium alloy V-1469 with low density made at JSC KUMZ industrial-scale production are given in the article. Mechanical, corrosion, resource characteristics and weldability of extruded panel are investigated. The welded extruded panel from alloy V-1469 application in wing design of perspective products of aviation engineering will allow to reduce weight thanks to increased strength-to-weight ratio of alloy in comparison with serial alloy V95o.ch.-Т2 and also due to application of welded joints instead of bolt and rivet. The work is executed within implementation of the complex scientific direction 8.1. «High-strength welded aluminum and aluminum - lithium alloys of the lowered density with the increased fracture toughness» («The strategic directions of development of materials and technologies of their processing for the period till 2030») [1].

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2.
dx.doi.org/ 10.18577/2307-6046-2016-0-8-2-2
УДК 621.762:669.24
Volkov A.M., Vostrikov A.V., Bakradze M.M.
Development principles and alloying features of p/m NI base superalloys for jet-engine disks application

The development of new aviation products requires the improvement of applicable alloys. Alloying complication of disk Ni-base superalloys leads to technical difficulties in their production and particularly during forging. Powder metallurgy allows successfully solving this problem and achieving mechanical characteristic that are very difficult to provide with traditional production methods. This article presents the basic principles of Russian P/M disk alloys development and also points the perspective directions of research in FSUE «VIAM». The work is executed within implementation of the complex scientific direction 10.2. «Isothermal deformation on air of new generation heterophase difficult-to-form superalloys» («The strategic directions of development of materials and technologies of their processing for the period till 2030») [1].

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3.
dx.doi.org/ 10.18577/2307-6046-2016-0-8-3-3
УДК 621.762
Vostrikov A.V., Sukhov D.I.
The production of powders by PREP method for addictive manufacturing – current situation and development prospects

In this article the issue of PREP powders application in modern AM units both for SLS and DMD technologies is analyzed. The essential powder properties for these powders application in AM units are shown. The analytic forecast of development of PREP method for its most effective application in AM is made. The conclusions on its prospects and implementation in Russia are made as well. The work is executed within implementation of the complex scientific direction 10.3. «Technologies for receiving high-quality powders of alloys on different basis for the additive technologies and powders of solders for the soldering» («The strategic directions of development of materials and technologies of their processing for the period till 2030») [1].

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4.
dx.doi.org/ 10.18577/2307-6046-2016-0-8-4-4
УДК 669.018.44:669.245
Nerush S.V., Ermolaev A.S., Rogalev A.M., Vasilenko S.A.
Research of retailoring process of the rotor blade feather end of the first stage of high-pressure turbine (HPT) from ZS32-VI alloy by laser metal deposition with ZS32-VI metal alloy powder dispersed by atomization

The ZS32-VI metal alloy powder for laser metal deposition dispersed by gas atomi-zation at HERMIGA 10/100 VI is researched. It is shown that the granules have a regular spherical shape with a small number of defective granules. The deposition quality of the rotor blade feather end of the high-pressure turbine first stage is performed. Laser metal deposition, performed with ZS32-VI metal alloy powder with granulometric composition 40–80 µm after degassing annealing and heating, provides with high quality deposited material (defects such as microcrack or lack of penetration are not revealed), and geometry retailoring in full. The work is executed within implementation of the complex scientific direction 10.4. «Technologies of bi-and polymetallic naturally reinforced metal materials by method of direct laser synthesis from metal powders» («The strategic directions of development of materials and technologies of their processing for the period till 2030») [1].

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5.
dx.doi.org/ 10.18577/2307-6046-2016-0-8-5-5
УДК 669.018.95
Serpova V.M., Shavnev A.A., Solyaev Y.О., Prokofiev M.V., Rabinskiy L.N.
The research of interfaces in metallic composite material based on aluminum alloy reinforced by alumina fibers

The paper presents results of investigation of interfaces in composite metal material (MMC) based on aluminum alloy reinforced by alumina fiber. The continuous fibers of alumina and Al–Mg–Cu alloy are used as precursor components. The chemical compo-sition and structure of the investigated materials, estimation of the volume fraction of interfacial zones in microns is performed by methods of x-ray and x-ray fluorescence analysis. The work is executed within implementation of the complex scientific direction 12.1. «Metal composite materials (MCM) reinforced by particles and fibers of refractory compounds» («The strategic directions of development of materials and technologies of their processing for the period till 2030») [1].

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6.
dx.doi.org/ 10.18577/2307-6046-2016-0-8-6-6
УДК 666.3.022.66
Buchilin N.V., Prager E.P., Ivakhnenko Yu.A.
The influence of plasticizating additives on rheology of slip for porous ceramic materials based on aluminum oxide

In the present article the results of rheology characteristics investigations of alumina-based slurries for foam-ceramics production are presented. It is shown that replacement of water, that is used as technological ligament, by water solution of carbamide and aluminum oxychloride, leads to decrease of thickness of corundum particles electric dou-ble layer, that facilitates green bodies formability and improves mechanical characteristics of ceramic materials. The ratios of solid phase (sintering powders) to liquid phase (technological ligament) where either coagulation contacts or direct contacts between solid phase particles appears to form are determined.

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7.
dx.doi.org/ 10.18577/2307-6046-2016-0-8-7-7
УДК 678.8
Kutsevich K.E., Dement’eva L.A., Lukina N.F.
Properties and application of polymer composite materials based on glue prepregs

The properties of composite adhesive materials (CAM) based on wide range of adhesive prepregs on glass- and carbon fillers are presented. The information about benefits and features of PCM elements manufacturing process from adhesive prepregs is presented. The CAM application for manufacturing parts from PCM including the honeycomb structure, single or double curvature designed for operation at temperatures 80–175°C is shown. The research work is executed within implementation of the complex scientific direc-tion 13.2. «Constructional polymer composite materials» («The strategic directions of development of materials and technologies of their processing for the period up to 2030») [1].

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8.
dx.doi.org/ 10.18577/2307-6046-2016-0-8-8-8
УДК 678.8
Satdinov R.A., Veshkin E.A, Postnov V.I., Strelnikov S.V.
РСМ low-pressure air ducts in aircraft

A review of the literature in the field of materials for low-pressure air ducts in the air-conditioning system is presented. A comparison of the major domestic and imported materials for the manufacture of air ducts is performed. The requirements for development of a competitive domestic material for manufacture of low-pressure air duct elements of PCM are determined.

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9.
dx.doi.org/ 10.18577/2307-6046-2016-0-8-9-9
УДК 678.686
Tyumeneva T.Y., Lukina N.F.
Development in the field of elastomeric adhesives for aviation

The description of new developments of Federal State Unitary Enterprise VIAM in the field of elastomeric adhesives and technologies of their application in aviation engineering is provided. The main properties of rubber adhesives of cold curing and the adhesives intended for coupling rubbers with metals during vulcanization are represented. The way of increase of durability of adhesive connections based on rubbers is shown. The work is executed within implementation of the complex scientific direction 15.1. «Multifunction adhesive systems» («The strategic directions of development of materials and technologies of their processing for the period till 2030») [1].

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10.
dx.doi.org/ 10.18577/2307-6046-2016-0-8-10-10
УДК 620.193:669.715
Kurs M.G., Kutyrev A.E., Fomina M.A.
Research of corrosion damage of wrought aluminium alloys at laboratory and full-scale tests

By certification of aluminium alloys the investigation of their liability to isolated types of corrosion determined in laboratory conditions is obligatory as well as investigation of corrosion resistance of materials determined in the course of full-scale exposition. Regularly environmental tests of aluminium alloys are carried out under the conditions of open areas. This paper shows that investigations under the roof are more significant for the given class of materials as they provide amplification of monitoring factors of corrosive process – damping duration of the surface and expansion in the number of chlorides. Also this paper throws light on correlation problems of laboratory and full-scale corrosion testing and presents the procedure of full-scale accelerated tests allowing to reduce the time of environmental tests by 4–5 times in comparison with the exposition under full-scale conditions.

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11.
dx.doi.org/ 10.18577/2307-6046-2016-0-8-11-11
УДК 620.178.6
Erasov V.S., Oreshko E.I.
Deformation and destruction as processes of change of volume, the areas of a surface and the linear sizes in loaded bodies

Considering the possession fact a point on a surface of a firm body superfluous in comparison with a point in body volume potential energy, models of deformation and destruction of loaded bodies at the expense of processes of change of volume, the areas of a surface and the linear sizes of a body are developed. The assessment of the extent of defect from a time to the critical sizes of a crack depending on locality of concentration of energy in body volume is carried out, possibility of growth of defects till the critical sizes is shown. Comparison of conditions of loss of stability in crack development by Griffith criterion and to the criterion received in work is presented. Work is executed within implementation of the complex scientific direction 3.3. «Technology of forecasting of properties, modeling and implementation of modern processes of designing and production of products from non-metallic and composite materials with use of the digital methods compatible to CAD/CAM/CAE an

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12.
dx.doi.org/ 10.18577/2307-6046-2016-0-8-12-12
УДК 678.8:658.567.1
Doriomedov M.S., Petrov A.V., Daskovskiy M.I., Skripachyov S.Yu.
Processing reinforcing filler from PCM for recycling purposes

The analysis of various tissues of fibrous fillers to create polymer composite materials (PCM) is performed, their structure and possible technology of their destruction with the aim of further processing of the fibers is considered. It is suggested to process recycled fiber from PCM into nonwoven materials as the most convenient and universal direction for further processing. The technology of producing nonwoven fabrics of carbon fibers and their application are considered. The work was executed within implementation of the complex scientific direction 13.1. «Binding for polymer and composite materials of constructional and special purpose» («The strategic directions of development of materials and technologies of their processing for the period till 2030») [1].

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