Articles

 


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1.
dx.doi.org/ 10.18577/2307-6046-2021-0-2-3-9
УДК 669.018.28:669.721.5
Leonov A.A., Trofimov N.V., Duyunova V.A., Uridiya Z.P.
TRENDS IN THE DEVELOPMENT OF CAST MAGNESIUM ALLOYS WITH AN INCREASED IGNITION TEMPERATURE (review)

Trends in the development of cast magnesium alloys with increased temperature, ignition and fire resistance are presented. The main world companies and institutions - developers of casting magnesium alloys are presented. The developed alloys are considered, indicating their chemical characteristics, mechanical characteristics at high and high temperatures and corrosion resistance, as well as the use of materials and design aspects of industry. The presented magnesium alloys with an increased ignition temperature allow expanding the scope of their use.

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2.
dx.doi.org/ 10.18577/2307-6046-2021-0-2-10-19
УДК 66.017
Zhelezina G.F., Kolobkov A.S., Kulagina G.S., Kan A.Ch.
DAMPING PROPERTIES OF HYBRID LAYERED METAL-POLYMER MATERIALS BASED ON ALUMINUM, TITANIUM ALLOYS AND ORGANOPLASTICS LAYERS

The damping characteristics of hybrid layered materials of the class «aluminum–organoplastics» and «titanium–organoplastics» based on metal sheets and layers of aramid organoplastics are studied. It is shown that the level of damping properties of hybrid layered materials is higher than that of the initial alloys and depends on the volume content of organoplastics, the location of organoplastics layers relative to metal layers, as well as on the reinforcement scheme. Hybrid layered materials are promising materials for the manufacture of high-speed aircraft structures operating under high vibroacoustic loads.

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3.
dx.doi.org/ 10.18577/2307-6046-2021-0-2-20-29
УДК 699.81:678.8
Barbotko S.L., Bochenkov M.M., Volnyj O.S., Korobeinichev O.P., Shmakov A.G.
EVALUATION OF THE EFFECTIVENESS OF THE FIRE RETARDANTS, PROMISING FOR THE CREATION OF NEW POLYMER COMPOSITE MATERIALS INTENDED FOR AVIATION TECHNIQUES

Studies have been carried out on the effectiveness of the action of two types of fire retardants – graphene and an organic phosphorus-containing compound DOPO-THPO, introduced into an epoxy resin. The amount of fire retardants introduced was 0; 2 and 4% of the amount of epoxy resin. The efficiency was assessed by the oxygen index method (LOI). It was shown that for this epoxy resin, the introduction of graphene provided an increase in the oxygen index from 21 to 27%, and the introduction of the phosphorus-containing fire retardant DOPO-THPO – from 21 to 23%. With the simultaneous introduction of graphene (3%) and DOPO-THPO (1%), it was possible to achieve an increase in the oxygen index up to 28%.

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4.
dx.doi.org/ 10.18577/2307-6046-2021-0-2-30-38
УДК 620.172
Pevchev D.I., Gorbovets M.A., Ryzhkov P.V., Kurbatkina E.I.
INVESTIGATION OF THE STRENGTH CHARACTERISTICS DISPERSION-STRENGTHENED METAL-CERAMIC COMPOSITE MATERIAL VKM22

In many industries, such as mechanical engineering and aerospace, traditional alloys are being replaced by metal matrix composites (MCM). Compared to unreinforced alloys, MCM is characterized by increased strength and rigidity combined with low density. To calculate the resource of nodes for the safe and reliable operation of new equipment, it is necessary to have a set of calculated values of the MCM strength characteristics, including the characteristics of short-term and long-term strength, low-cycle (LCF) and high-cycle (HCF) fatigue. The work is devoted to the study of the characteristics of short-term and long-term strength, LCF and MCF fatigue of dispersion-strengthened MKM grade VKM22.

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5.
dx.doi.org/ 10.18577/2307-6046-2021-0-2-39-51
УДК 678
Gulyaev I.N., Zelenina I.V., Valevin E.O., Khaskov M.A.
INFLUENCE OF CLIMATIC AGEING ON THE PROPERTIES OF HIGH-TEMPERATURE CARBON FIBER REINFORCED PLASTICS

Presentsthe  results of of research of the properties of a series of high-temperature carbon plastics based on phthalonitrile resin after long-term exposure in various climatic zones: temperate climate, moderately warm climate with mild winters, warm humid climate, very cold climate are presented. The state of the surface of carbon fiber reinforced plastics has been investigated, their thermal stability and water absorption have been determined. After exposure, CFRPs showed high retention of properties from the level of the initial values: 80–90% at room temperature of tests and 60–75% at a temperature of 300 °С.

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6.
dx.doi.org/ 10.18577/2307-6046-2021-0-2-52-61
УДК 666.7
Konokotin S.P., Nazarkin R.M.
THE INFLUENCE OF INTERSTITIAL IMPURITIES IN THE Zr–Y TARGET ALLOYS ON THE HEAT RESISTING CERAMIC COATING QUALITY

The influence of interstitial impurities in the Zr–Y target alloys (manufactured by two different techniques) on the quality of thermal barrier ceramic layers of heat resisting coating are studied in this work. The heat resisting ceramic coating manufactured in the UOKS-2 devices by magnetron medium-feculence plasma–chemical deposition on the surface of components that are used at the high temperatures (above 1150 °C). It was found that when the content of interstitial impurities in the target alloy is more than 0,1% (1000 ppm), the rate of the coating process decreases and has to be maintained by increasing the energy of argon ions. This leads to overheating of the target alloy and the surface of the parts (substrate) which impairs the adhesion of the deposited atoms.

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7.
dx.doi.org/ 10.18577/2307-6046-2021-0-2-62-70
УДК 669.017.165:669.295
Gorlov D.S., Zaklyakova O.V., Aleksandrov D.A., Budinovskiy S.A.
IMPROVING OF FRETTING RESISTANCE INTERMETALLIC Ti2AlNb ALLOY

The results of research on improving the fretting resistance of a titanium alloy made of orthorhombic titanium aluminide Ti2AlNb by forming a coating consisting of a barrier and an outer layer on the surface using an industrial vacuum-arc installation MAP-3 are presented. The dependences of the total wear and the coefficient of friction of samples made of Ti2AlNb alloy with and without coating in combination with a counterbody made of high-strength welded dispersed-hardening alloy during fretting damage tests at room (20 °C) and elevated (700 °C) temperatures are established. The kinetics of oxygen saturation of the surface of samples made of Ti2AlNb alloy with and without coating at the operating temperature of the alloy based on 200 h is shown. The phase and elemental compositions of the fretting-resistant coating after high-temperature exposure are investigated.

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8.
dx.doi.org/ 10.18577/2307-6046-2021-0-2-71-80
УДК 621.793
Aleksandrov D.A., Gorlov D.S., Budinovskiy S.A.
APPLICATION OF A COMPLEX OF ION-PLASMA TECHNOLOGIES TO PROTECT THE COMPRESSOR BLADES OF A HELICOPTER GAS-TURBINE ENGINE FROM EROSION WEAR AND FRETTING

Describes the application of the technology of applying erosion-resistant and fretting-resistant ion-plasma coatings to protect compressor blades of VT8M-1 alloy from erosion wear and fretting, presents the results of tests of compressor blades for erosion resistance and vibration fatigue, samples of VT8M-1 alloy for fretting wear, multi-cycle fatigue and long-term strength, metallographic and metallophysical studies. It has been established that multilayer coatings TiN/CrN and Ti+TiN increase, respectively, the erosion resistance of the feather and the resistance to fretting wear of the locking part of titanium GTE compressor blades while maintaining their fatigue strength.

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9.
dx.doi.org/ 10.18577/2307-6046-2021-0-2-81-87
УДК 621.762
Iatsyuk I.V., Doronin O.N., Kuko I.S.
SECONDARY PROCESSING OF CAST TUBE CATHODES WHEN OBTAINING A METAL POWDER COMPOSITION FOR THE GAS-THERMAL SPRAY OF COATINGS

The paper presents the results of structural studies of metal-powder compositions (MPC) from the VSDP-3 alloy, as well as heat-resistant atmospheric-plasma powder coatings, developed at the FSUE «VIAM». As blanks for sputtering the MPC, standard charge blanks and exhausted resource cast tube cathodes for ion-plasma deposition were used. It was found that MPC obtained by sputtering cathodes and coatings deposited by sputtering these MPC are not inferior in properties to standard MPC and coatings. At the same time, the cost of such MPC and coatings can be 20–40% lower.

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10.
dx.doi.org/ 10.18577/2307-6046-2021-0-2-88-98
УДК 66.045.3
Zarichnyak Yu.P., Barinov D.Y.
MEASUREMENT OF THERMOPHYSICAL PROPERTIES RIGID FIBER INSULATION

Describes a mathematical model for processing the results of measurements of thermal conductivity of highly porous fibrous materials of thermal protection. The results and some methodological features of measuring the thermal conductivity of rigid thermal insulation based on refractory oxide fibers are presented. The possibility of measurements taking into account the anisotropy of properties is investigated. The stiffness of the thermal insulation at the fiber contacts is provided by the binder. Thermal conductivity was measured by the stationary method on cylindrical samples in a wide temperature range from 20 to 1700 °C in various gaseous media.

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11.
dx.doi.org/ 10.18577/2307-6046-2021-0-2-99-108
УДК 620.1
Laptev A.B., Pavlov M.R., Novikov A.A., Slavin A.V.
CURRENT TRENDS IN THE DEVELOPMENT OF TESTING MATERIALS FOR RESISTANCE TO CLIMATIC FACTORS (review) Part 2. Main trends

In the second part of the review, based on the analysis of the world experience in conducting climate tests, the main development trends related to new applications of materials, their compatibility, modeling of loading cycles, acceleration of climate tests, the impact of climate gradients, taking into account the level of climate factors in a particular area with a minimum resolution, climate change, new methods for assessing the climatic resistance of materials and biolo-gical impact factors are identified. The relevance of complex tests of materials for climatic and biological resistance with the use of methods for predicting their properties is shown.

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12.
dx.doi.org/ 10.18577/2307-6046-2021-0-2-109-118
УДК 620.1193:669.815
Kutyrev A.E., Chesnokov D.V., Antipov V.V., Vdovin A.I.
A STUDY OF THE USE OF COMBINED ANODIC DISSOLUTION OF ALUMINUM ALLOYS WITH NOT HIGH SENSIBILITY TO IGC EVIDENCE FROM ALLOY OF Al–Li–Cu SYSTEM WITH THE PURPOSE OF PREDICTING LOSS OF MECHANICAL PROPERTIES AT ATMOSPHERIC CORROSION

The article presents data on combined anodic dissolution of aluminum alloy of Al–Li–Cu system with not high sensibility to intergranular corrosion, consisting in sequential dissolution in two different solutions, with different modes – the ratio of the specific amount of electricity. The obtained corrosion deteriorations were evaluated by optical and confocal microscopy, the dependences of mass loss, the depth of pitting and intergranular corrosion, as well as changes in the tensile strength of the specific amount of electricity for different modes were determined. As a result of the analysis of the obtained data, models for predicting the loss of tensile strength from the value of the specific amount of electricity (or mass loss) in atmospheric corrosion are proposed.

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13.
Authors information

Authors named

Position, academic degree

Affiliation

Denis A. Aleksandrov

Leading Engineer

FSUE «All-Russian scientific research institute of aviation materials» SSC of RF;

e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Vladislav V. Antipov

Deputy Director General for Science, Candidate of Sciences (Tech.)

Sergey L. Barbotko

Head of Sector, Doctor of Sciences (Tech.)

Dmitriy Ya. Barinov

Second Category Engineer

Mikhail M. Bochenkov

First Category Technician

Sergey A. Budinovskii

Chief Researcher, Doctor of Sciences (Tech.)

Evgeny O. Valevin

Deputy Head of Laboratory, Candidate of Sciences (Tech.)

Alexander I. Vdovin

Engineer

Oleg S. Volnyj

Leading Engineer

Mikhail A. Gorbovets

Deputy Head of Testing Center, Candidate of Sciences (Tech.)

Dmitriy S. Gorlov

Leading Engineer

Ivan N. Gulyaev

Deputy Head of Laboratory for Science, Candidate of Sciences (Tech.)

Oleg N. Doronin

Head of Laboratory, Candidate of Sciences (Tech.)

Viktoriya A. Duyunova

Head of Scientific-Research Bureau, Candidate of Sciences (Tech.)

Galina F. Zhelezina

Head of Sector, Candidate of Sciences (Tech.)

Oxana V. Zaklyakova

Second Category Engineer

Irina V. Zelenina

Leading Engineer-Technologist

Andrey V. Zuev

Deputy Head of Laboratory, Candidate of Sciences (Tech.)

Alexey Ch. Kan

First Category Engineer

Alexander S. Kolobkov

Head of Laboratory, Candidate of Sciences (Tech.)

Sergey P. Konokotin

Leading Engineer

Ivan S. Kuko

Engineer

Galina S. Kulagina

Senior Researcher, Candidate of Sciences (Chem.)

Elena I. Kurbatkina

Head of Laboratory, Candidate of Sciences (Tech.)

Alexey E. Kutyrev

Leading Researcher, Candidate of Sciences (Chem.)

Anatoly B. Laptev

Chief Researcher, Doctor of Sciences (Tech.)

Alexander A. Leonov

Head of Laboratory

Roman M. Nazarkin

Leading Engineer

Andrey A. Novikov

Technician

Dmitriy I. Pevchev

First Category Technician

Mikhail R. Pavlov

Senior Researcher, Candidate of Sciences (Tech.)

Petr V. Ryzhkov

Engineer

Andrey V. Slavin

Head of Testing Center, Doctor of Sciences (Tech.)

Nikolay V. Trofimov

Engineer

Zinaida P. Uridiya

Leading Researcher, Candidate of Sciences (Tech.)

Maxim A. Khaskov

Leading Researcher, Candidate of Sciences (Chem.)

Dmitriy V. Chesnokov

Head of Laboratory

Ivan V. Iatsyuk

Candidate of Sciences (Tech.)

Yuriy P. Zarichnyak

Professor, Doctor of Sciences (Phys. & Math.)

FSAEI of HE «ITMO University»;

e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Oleg P. Korobeinichev

Chief Researcher, Doctor of Sciences (Phys. & Math.), Professor

FSBIS «Voevodsky Institute of Chemical Kinetics and Combustion» of the SB of the RAS;

e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Andrey G. Shmakov

Head of Laboratory, Doctor of Sciences (Tech.)

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