Archive - Электронный научный журнал "ТРУДЫ ВИАМ"

Articles

 


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1.
dx.doi.org/ 10.18577/2307-6046-2019-0-5-3-11
УДК 669.018.44:669.245
Yakimovitch P.V., Alekseev A.V.
Improvement of analytical characteristics for the determination of impurities in high temperature nickel alloys using ICP-MS

In this work, the determination of P, As, Se, Cd, Cu, Zn, Te, Sb in samples of complex alloy nickel alloys by inductively coupled plasma mass spectrometry (ICP-MS) was carried out. The technique of dissolving the sample and preparing it for analysis. Applied different techniques for elimination of spectral interferences and improve sensitivity definitions: reaction-collision cell and mathematical correction. Range of determined concentrations were 0,00001–0,087% by weight, relative standard deviation not greater than 0,05.

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2.
dx.doi.org/ 10.18577/2307-6046-2019-0-5-12-21
УДК 678.8
Petrova A.P., Mukhametov R.R., Akhmadieva K.R.
Internal stresses in cured polyester binders for polymer composites

Internal thermal stresses appearing during the curing of a polyester maleate binder and fiberglass on its base are considered. The effect of moisture (air humidity) on the breaking strength of samples and internal stresses appearing in the process of their production, storage (using) and heat treatment has been studied. It is shown that the internal stresses mainly depend on the difference in the moisture content of the samples compared to their initial state, while the breaking strength of the samples decreases with increasing moisture content.

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3.
dx.doi.org/ 10.18577/2307-6046-2019-0-5-22-31
УДК 678.8
Deev I.S., Zhelezina G.F., Lonskii S.L., Kurshev E.V.
Features of forming of the microstructure of the polymeric matrix in organoplasty on the basis of the multicomponent epoxy binding

The microstructure of a polymeric matrix in organoplasty on the basis of an aramide fabric and the multicomponent epoxy binding modified by polysulphone is investigated. It is established that phase heterogeneity is peculiar to a polymeric matrix: the one-phase microdisperse structure is characteristic for a microstructure of epoxy polymer in zones with dense packing of fibers (in a thread); the two-phase structure is characteristic for a microstructure of the epoxy polymer modified by polysulphone, in zones with less dense packing of fibers (between threads and fabric layers). With researches of a microstructure it is confirmed that when manufacturing the organoplasty on the basis of an aramide fabric and the meltable multicomponent epoxy binding happens redistribution of components of a reinforcing filler binding in interfiber space to a primary arrangement of polysulphone between threads and the fabric layers, bringing to formation of two-phase structure.

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4.
dx.doi.org/ 10.18577/2307-6046-2019-0-5-32-40
УДК 667.621
Mishkin S.I., Malakhovskiy S.S.
Fast curing resins and prepregs: receiving, properties and areas of application (review)

In article presented a review about fast curing resins and prepregs by means of which there is possibility of receiving finished product in only a few minutes is provided. Showed, that the main scopes of fast curing resins and prepregs is automotive industry, construction and transport. Showed, that such composite materials have number of advantages, including economic, by production small and large-size details. Data on the manufacturing companies are provided in article and properties of brands let out by them fast curing resins and prepregs.

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5.
dx.doi.org/ 10.18577/2307-6046-2019-0-5-41-51
УДК 666.7
Bespalov A.S., Nefyodov N.I., Deev I.S., Kurshev E.V., Lonskii S.L., Bouznik V.M.
Features of hydrophobization of high-porous ceramic materials using fluorooligomers

The properties of hydrophobized samples of high-porous ceramic material of the type TZMK based on quartz fibers are analyzed, and the influence of the method of applying hydrophobic coatings on the contact angle and their surface profilometry is evaluated. Structural features have been studied and the uniformity of hydrophobic coating application based on low molecular weight fluoroligomer brand PPU-90 has been shown. Proved high efficiency of fluorinated paraffins to protect high-porous systems from the damaging effects of high humidity.

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6.
dx.doi.org/ 10.18577/2307-6046-2019-0-5-52-61
УДК 681.586.5
Kachura S.M., Postnov V.I.
Perspective optical fiber sensors and their application (review)

A significant increase in the use of composite materials, including in aerospace engineering, as well as in other areas requiring increased reliability of structures, such as oil production, construction, etc. makes the task of monitoring the state of structures (SHM – structural health monitoring technology) very relevant. One of the most promising approaches is the use of fiber optic sensors as part of the monitoring system. Fiber optic sensors compared to classical sensors have a number of significant advantages.

This review article shows the variety of applications of fiber-optic embedded sensors in the field of aircraft structures made of polymer composite materials, and in the civil sphere. Considered promising fiber optic systems. The areas of application of such systems and the directions of their development are shown.

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7.
dx.doi.org/ 10.18577/2307-6046-2019-0-5-62-67
УДК 629.7.023.222
Zheleznyak V.G.
Modern paint and varnish materials for use in aviation equipment products

Ensuring reliable protection of aviation equipment products from external influencing factors depends on the choice of paintwork and varnish materials and coatings based on them, which provide high adhesion, physicomechanical, protective and decorative properties. The main directions of work of the laboratory «Paintwork materials and coatings» of FSUE «VIAM», as well as the properties of paintwork and varnish materials and coatings based on them are presented. The key trends in the development of aviation paint and varnish materials and coatings based on them are presented.

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8.
dx.doi.org/ 10.18577/2307-6046-2019-0-5-68-75
УДК 629.7.023.222
Merkulova Yu.I., Kuznetsova V.A., Novikova T.A.
Investigation of properties of coating system based on fluorine polyurethane enamel and primer with low toxical pigment content

Properties of coatings system on the basis of fluorine polyurethane enamel and first coat with the lowered maintenance of toxical pigments after aging factors in comparison with domestic UR-1161 enamel and import analog of C21/100, firm AkzoNobel are investigated. It is established that after influence of factors of aging system of paintwork coatings on the basis of fluorine polyurethane enamel and universal without chromate first coat of cold drying possess high resistance to effect of aggressive fluids, to UF to radiation, high adhesive, physicomechanical and decorative properties.

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9.
dx.doi.org/ 10.18577/2307-6046-2019-0-5-76-84
УДК 620.1
Kadosov A.D., Lednev I.S., Pavlova T.D., Golovkov A.N.
The test pieces to determine the performanceof magnetic particle flaw detectors and magnetic media (review)

The article describes the main types of Russian and worldwide test pieces for magnetic particle inspection, used to assess the performance of magnetic particle flaw detectors, the performance of magnetic indicators, as well as to determine the direction of the magnetizing field. Their device is shown, recommendations on their use, interpretation of results, and also factors which can lead to damage and failure of samples are given. The problems of using special test pieces for magnetic particle inspection are shown.

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10.
dx.doi.org/ 10.18577/2307-6046-2019-0-5-85-93
УДК 620.193.21
Varchenko E.A., Kurs M.G.
Influence of corrosion environmental parameters on properties of constructional metal materials while testing in sea water (review)

The analysis of domestic and foreign experience of methods of testing materials in sea water. It has been shown that the following materials should be used in determining the characteristics of materials during operation in seawater: testing materials in a water flow moving with variable speed in order to identify the motor-electric effect and cavitation; testing materials in the period of wetting and in the near-surface water layers to determine the effect on materials resistance to aeration; biological resistance testing of materials to determine the degree of fouling and the degree of destruction of materials in a given water area.

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11.
dx.doi.org/ 10.18577/2307-6046-2019-0-5-94-102
УДК 621.74.045
Guseva M.A., Aslanyan I.R.
The effect of fillers on the rheology of model composition

This paper presents the possibilities of assessing the technological properties of model compositions using the rheological method at the stage of developing of prayer compositions for investment casting. The analysis of the results of studies of the rheological behavior of the composition with the introduction of solid fillers – terephthalic acid, polyvinyl alcohol and rosin is carried out. It is shown that the rheological model of these compositions, regardless of the nature of the filler, is described by a model for a viscoplastic body. The influence of the filler concentration on the melting temperature range of model composition was established.

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12.
dx.doi.org/ 10.18577/2307-6046-2019-0-5-103-110
УДК 620.1:629.7.023.222
Pavlov A.V., Andreeva N.P., Pavlov M.R., Merkulova Yu.I.
Climatic tests of paint coating based on fluoroplastic and features of its destruction

The article presents the main results of the climatic tests of the coating based on the fluoroplastic and developed in the FSUE “VIAM”. It is shown that this coating has a high resistance to the effects of a tropical humid climate for a period of at least two years without changing the protective properties. The exposition was held at climate stations of the Republic of Vietnam (Hoa Lac and Dam Bay stations) and also on the Russian climate station (Gelendzhik). Using FTIR-spectroscopy, it was found that in the process of coating destruction, the fluoroplastic component decreases.

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