Articles

 


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1.
dx.doi.org/ 10.18577/2307-6046-2017-0-2-1-1
УДК 699.715
Selivanov A.A., Tkachenko E.A., Popova O.I., Babanov V.V.
High-strength wrought aluminum weldable V-1963 alloy for details of primary structure of modern aviation engineering

High-strength V-1963 alloy of Al–Zn–Mg–Cu system with small additions of zirconium, scandium and silver, developed by FSUE «VIAM», made for massive highly stressed parts (such as frames, fittings, beams, etc.) of primary structure of modern aviation engineering. Alloying with small additions of silver and scandium allowed to simultaneously increase the strength characteristics (by 10–20%), and fatigue resistance (1,8–2,3 times) in comparison with serial domestic and foreign alloys. Unlike the other high strength alloys of Al–Zn–Mg–Cu system, weldability characteristics of V-1963 were improved as compared to similar alloys without silver, and V-1963 also has an acceptable level of corrosion resistance characteristics. Within the terms of the federal target programs at FSUE «VIAM» and the implementation of an integrated scientific direction 8.1. «High-strength welded aluminum and aluminum-lithium alloys of low density with high fracture toughness» («Strategic directions of development

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2.
dx.doi.org/ 10.18577/2307-6046-2017-0-2-2-2
УДК 669.018.44:669.245
Nazarkin R.M., Petrushin N.V., Rogalev A.M.
The structure and phase characteristics of ZhS32-VI alloy manufactured by directional solidification, granular metallurgy and selective laser melting

The structural and phase characteristics of ZhS32-VI Nickel superalloy with rhenium are studied. The directional solidification, granular metallurgy, and selective laser melting were used to develop ZhS32-VI alloy. Work is executed within the implementation of the complex scientific direction 10.3. «Technologies of atomatization for production of fine-dispersed 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»)

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3.
dx.doi.org/ 10.18577/2307-6046-2017-0-2-3-3
УДК 669.255
Lomov S.B., Sokolova T.V., Malkova M.Yu., Zadiranov A.N.
Influence of thermal processing on properties of amorphous alloy on the basis of cobalt

Influence of thermal processing on magnetic and mechanical properties of the amorphous fast-quenched soft magnetic alloy on the basis of cobalt is considered. In work experimental results of dependence of microhardness, specific electroresistance, initial magnetic conductivity, the maximum magnetic conductivity, magnetic induction of saturation and coercive force depending on temperature are shown. Results of research of influence of thermal processing on effective magnetic conductivity in alternating magnetic field are provided. On the basis of the carried-out researches the conclusion about optimum mode of thermal processing is made. The conducted researches will allow to establish scope of this material and to optimize magnetic properties. The received results are analyzed from positions of modern representations.

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4.
dx.doi.org/ 10.18577/2307-6046-2017-0-2-4-4
УДК 669.295
Gorlov D.S., Muboyadzhyan S.A., Shchepilov A.A., Aleksandrov D.A.
The influence of ion implantation on the damping ability of the composition «аlloy–ion-plasma coating»

The possibility to use ion implantation in assistiveware deposition of ion-plasma damping coatings in one technological cycle is shown. The influence of ion implantation of argon on the damping ability of the composition of titanium alloy VT6 with damping coating and without it to reduce the oscillation amplitude of the free end of the samples during vibrodynmic bench tests on the first flexural mode is analyzed. The surface roughness of the samples of titanium alloy VT6 before and after applying the damping covering are studied. Metallographic researches of titanium alloy VT6 with a damping coating before and after tests on damping ability are carried out. This work was performed within the framework of strategic directions 17. «Comprehensive anticorrosion protection, hardening, wear-resistant protective and heat-resistant coatings», сomplex problem 17.3. «Multilayer heat-resistant and heat-resistant coatings, nanostructural hardening erosion and corrosion-resistant, wear-resistan

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5.
dx.doi.org/ 10.18577/2307-6046-2017-0-2-5-5
УДК 678.8
Raskutin A.E., Khrulkov A.V., Yazvenko L.N.
Polymer film coating for PCM structures

Polymeric composite materials (PCM) are gaining more and more confidently their place among structural materials in aircraft industry. PCM can no doubt be attributed to the most promising products of both modern and future industrial production. Various technologies require the development of new materials for autoclave, pressing, vacuum molding methods. Currently in Russia and abroad research are carried out aiming at the development of materials and technologies to reduce costs and labour intensity of the manufacture of PCM products. The resistance of PCM to climatic influence plays an important part in their development that allows their use in different climatic zones. One of the materials reducing labour intensity of the preparation process of PCM parts for painting and providing a stable surface protection of structures are surface films. While basic necessary properties of structural adhesives are tensile and shear strength, for surface films such properties as fluidity, drapabi

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6.
dx.doi.org/ 10.18577/2307-6046-2017-0-2-6-6
УДК 678.4
Alifanov E.V., Chaykun A.М., Naumov I.S., Еliseev O.A.
Elastomeric materials with high heat resistance (review)

The main types of heat-resisting rubbers and fields of their application are described. Features of selection of elastomers for high-temperature sealants are shown. Thermal stability characteristics of rubbers of different types are given. Comparative characteristics of domestic heat-resistant rubbers of mass application are given. Information on the modern trends and developments in the field of creation of heat-resistant materials is provided.

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7.
dx.doi.org/ 10.18577/2307-6046-2017-0-2-7-7
УДК 678.8
Ivanov M.S., Nesterova T.A., Platonov M.M.
Semipermeable membranes for vacuum infusion molding of polymer composite materials (review)

In article the overview of structures and compositions of membrane fabrics for manufacturing of polymeric composite materials by method of vacuum infusion is provided. Production methods and materials for manufacturing membrane fabrics are considered. The main firms–manufacturers of membrane fabrics for vacuum infusion and properties of membrane fabrics produced by them are also presented. The membrane fabric applied in the course of vacuum infusion is permeable to gases but not permeable for binding, therefore decontamination of package of filler occurs during all process of infusion, porosity thus decreases to 0,2% and the volume content of fiber increases to 65% that allows applying vacuum infusion with the use of semi-permeable membrane for production of elements of airframe structure. In accordance with this technology production of full composite products or so-called «black wings» of MS-21 airplane is planned.

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8.
dx.doi.org/ 10.18577/2307-6046-2017-0-2-8-8
УДК 678.8
Dushin M.I., Donetskiy K.I., Karavaev R.Y., Korotkov I.A.
Some features of liquid formation of polymeric composite materials (review)

Features of molding of products from polymeric composite materials by methods of impregnation of dry reinforcement by liquid resin under vacuum pressure are considered. Values of capillary pressure and form factor on the device while studying permeability are experimentally determined. Influence of resin feed rate and capillary pressure on formation of porosity in plastic is investigated. Recommendations about resin feed rate to obtain the minimum porosity in plastic are given.

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9.
dx.doi.org/ 10.18577/2307-6046-2017-0-2-9-9
УДК 669.018.44:669.245
Chabina E.B.
Microalloying influence by lanthanoids on feature of forming of structure grain boundaries and interphase boundaries of γ/γ' heat resisting nickel alloy of the VZh175 type

Microalloying influence by lanthanoids (La, Pr, Nd, Gd, Dy, Ho, Lu) on condition of grain boundaries and interphase boundaries of γ/γ' heat resisting deformable alloy of the VZh175 type is researched. It is shown that in all studied compositions in cast condition an additional phase – intermetallic compound on the basis of nickel and REE is present. Phases the structure of which include microdoping elements, remain in the thermoprocessed material, both primary, and secondary, located on grain boundaries and interphase boundaries. It is established by TEM method that nanodimensional intermetallic phases decorate boundaries of large primary γ/γ' -phases, making additional contribution to material hardening. Influence of temperature and tension on condition of grain boundaries and interphase boundaries of alloy of the VZh175 type, including the structures containing different lanthanoids is investigated. After tests at temperatures of 650 and 750°С on the basis of over 1000 hours on gra

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10.
dx.doi.org/ 10.18577/2307-6046-2017-0-2-10-10
УДК 678.8
Dikov I.A., Boychuk A.S.
The review of FRP volume porosity definition with ultrasonic non-destructive technique (review)

The FRP porosity reduces structural strength, as known. At present FSUE «VIAM» specialists develop the automated ultrasonic testing method of aircraft wing porosity. Main ways of FRP volume porosity definition with use of ultrasonic non-destructive technique are observed in this paper. They are based on using ultrasonic waves attenuation coefficient, longitudinal ultrasonic wave velocity, backscattering noise energy, back-wall echo monitoring. Ultrasound scattering mechanism in FRP is described. Empiric curves for attenuation coefficient, ultrasonic wave velocity, backscattering noise energy vs pore quantity obtained by different authors are shown.

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11.
dx.doi.org/ 10.18577/2307-6046-2017-0-2-11-11
УДК 678.8
Nefyodov N.I., Khaskov M.A., Petrova A.P., Bouznik V.M.
Study of the thermal properties of fluorinated paraffins and hydrophobic coatings on their base

The systematic study of thermal properties of low-molecular fluorooligomers – industrial fluorinated paraffins of PPU brand has been carried out. Thermal analysis techniques, in particular a differential scanning calorimetry (DSC) and simultaneous thermal analysis (STA) were used. The features of the thermal decomposition of materials and their behavior under heating have been revealed. Crystallization kinetics of fluorinated paraffins has been determined.

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12.
dx.doi.org/ 10.18577/2307-6046-2017-0-2-12-12
УДК 669.018.28:669.715
Ogorodov D.V., Trapeznikov A.V., Popov D.A., Pentuykhin S.I.
The development of casting heat-resistant aluminum alloys (To the 120th anniversary since the birth of I.F. Kolobnev)

The article presents the main stages of work activities of Ivan Philippovich Kolobnev, as well as alloys developed under his leadership. The prospects of development of casting high-temperature, high-strength and corrosion-resistant aluminum alloys are shown. Experience accumulated by Kolobnev in the development of high-temperature aluminum alloys is now being implemented in the framework of the complex research area 8.4. «High-strength corrosion-resistant weldable magnesium and cast aluminum alloys for the new generation aerospace technologies» («The strategic directions of development of materials and technologies of their reprocessing for the period till 2030»)

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