Articles

 


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1.
dx.doi.org/ 10.18577/2307-6046-2021-0-12-3-13
УДК 669.017.165
Oglodkov M.S., Duyunova V.A., Nochovnaya N.A., Ivanov V.I., Avilochev L.Yu.
FEATURES OF THE TECHNOLOGY MANUFACTURING OF DEFORMED BLANKS FROM INTERMETALLIC ALLOYS VIT1 FOR PARTS OF THE GAS TURBINE ENGINE

Intermetallic alloy based on a Ti2AlNb compound are the most promising high-temperature materials for gas turbine engines operating up to a temperature of 700 degrees Celsius. In this paper, the technology of hot pressure treatment of a cast billet on a plate with a thickness of 25 mcm is studied. The technology included three comprehensive forging of the ingot billet, forging by drawing the intermediate billet and its subsequent rolling to the final size. The influence of heat treatment on the macro and microstructure of plates is studied. The chosen scheme of hot deformation and the mode of heat treatment provides an increased level of mechanical properties in the plates.

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2.
dx.doi.org/ 10.18577/2307-6046-2021-0-12-14-20
УДК 669.715
Sbitneva S.V., Lukinа E.A., Zaysev D.V.
INVESTIGATION OF THE FEATURES OF THE DECOMPOSITION OF A SOLID SOLUTION DURING AGING OF ALLOYS OF THE Al–Mg–Si–Cu SYSTEM

In this work, the samples of alloy 6013 of the Al–Mg–Si–Cu system after low-temperature thermomechanical treatment (LTMT) according to the scheme: quenching → aging → deformation → aging were studied by dark-field methods of transmission electron microscopy. The analysis of the structure of precipitates of hardening phases and dislocation structure in the volume of grains after different degrees of cold hardening of LHMT is carried out. It is shown that LHMT affects the formation of the structure of hardening precipitates, contributing to both heterogeneous nucleation at dislocations and homogeneous nucleation in the bulk of grains, due to the intensification of diffusion processes.

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3.
dx.doi.org/ 10.18577/2307-6046-2021-0-12-21-30
УДК 669.017
Prokhorchuk E.A., Leonov A.A., Vlasova K.A., Trapeznikov A.V., Nikitin V.I., Nikitin K.V.
PROSPECTS FOR THE USE OF HOT ISOSTATIC PRESSING IN CAST ALUMINUM ALLOYS (review)

Provides an overview of methods for producing porous aluminum, its properties, advantages and disadvantages, and considers the use of aluminum foamed materials in the aerospace and mechanical engineering industries. It has been established that the mechanical properties of foam aluminum depend on the size and location of the pores, as well as on the method of its production; carrying out the process of modeling the deformation of samples with different pore diameters and the type of porous structure will make it possible to control the mechanical properties of a porous aluminum alloy.

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4.
dx.doi.org/ 10.18577/2307-6046-2021-0-12-31-38
УДК 621.792.053
Lukina N.F., Petrova A.P., Isaev A.Yu., Smirnov O.I.
ADHESIVES AS PART OF PCM BASED ON ORGANIC FILLERS

The use of various adhesives and adhesive binders in the composition of organoplastics is shown, as well as the use of adhesives for gluing structural elements made of organoplastics in the composition of products. Examples of the use of VK-3 film adhesive as part of VKO-20 and VKO-2TB organoplastics, VK-36RT adhesive as part of VKO-19, VKO-19L organoplastics, VSK-14-2m adhesive binder as part of VKO-24 organoplastics are given. The results of the use of VK-41M adhesive in the composition of the Alor D16/41 aluminum organoplastic and the use of this material in the An-124 aircraft are presented.

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5.
dx.doi.org/ 10.18577/2307-6046-2021-0-12-39-46
УДК 669.018.95
Gololobov A.V., Nyafkin A.N., Zhabin A.N.
ASPECTS OF STRUCTURE FORMATION DISPERSION-STRENGTHENED METAL COMPOSITE MATERIAL OBTAINED ON THE BASIS OF SHAVINGS AND POWDER OF ALUMINUM CORROSION-RESISTANT ALLOY

A metal composite material (MCM) based on an aluminum corrosion-resistant alloy of the AMg6 brand, containing 22.5 % (vol.) Silicon carbide, obtained by mechanical alloying, has been investigated. Aspects of the formation of the MCM structure based on chips and powder from this alloy are considered. The influence of the initial components on the structure of the dispersion-strengthened MCM was investigated, and samples were made from this composite material.

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6.
dx.doi.org/ 10.18577/2307-6046-2021-0-12-47-54
УДК 621.792.053
Barannikov A.A., Satdinov R.A., Veshkin E.A, Kurshev E.V.
THE EFFECT OF ATMOSPHERIC PRESSURE PLASMA ON THE STRENGTH OF AN ADHESIVE BOND BASED ON CFPR

The article notes the results of studying the surface of VKU-30K.UMT49 carbon fiber-reinforced plastic without and with its treatment with atmospheric pressure plasma (APP), which is one of the most advanced methods of surface preparation for various adhesion processes, based on the study of the phenomenon of wetting and the theory of adhesion. The results of the effect of APP on the strength of an adhesive bond based on VKU-30K.UMT49 carbon fiber-reinforced plastic, the roughness of the surface of the carbon fiber and its microstructure, the results of the free energy of the surface and its components and the work of adhesion according to the method of Owens–Wendt–Rabel–Kaelble were obtained.

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7.
dx.doi.org/ 10.18577/2307-6046-2021-0-12-55-62
УДК 678.8
Goncharov V.A., Timoshkov P.N., Usacheva M.N.
PROSPECTS OF THE PRODUCTION OF LARGE-SIZED AIRCRAFT PARTS FROM POLYMER COMPOSITE MATERIALS (review)

Today wings for Boeing 787 and Airbus A350 aircraft are made of polymer composite materials in the form of prepregs based on carbon fiber, the blanks of which are molded in an autoclave. It is expected that by 2025–2030 will actively use the vacuum infusion method, which will require global research on the selection of binding and reinforcing materials, development of the vacuum impregnation and curing process, automation and development of new technological methods for laying out workpieces of parts, accelerating the process and shortening the cycle time.

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8.
dx.doi.org/ 10.18577/2307-6046-2021-0-12-63-72
УДК 629.7.023.222
Kuznetsova V.A., Emelyanov V.V., Shapovalov G.G., Kovrizhkina N.A.
USE OF MODIFIERS FOR INCREASE OF OPERATIONAL PROPERTIES OF PAINT COATINGS ON THE BASIS OF THE EPOXY FILM-FORMING (review)

Epoxy oligomers are one of the most widespread synthetic polymers who during already enough long time apply to manufacturing of paint and varnish materials. Possessing number of valuable properties, epoxy paint and varnish materials have also shortcomings for which elimination use different receptions, including physical and chemical updatings using different mono- and elastomeric, silicon- and organophosphorous and other connections. The main attention is given to use of different modifiers for improvement of operational properties of anticorrosion paint coatings.

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9.
dx.doi.org/ 10.18577/2307-6046-2021-0-12-73-85
УДК 667.6
Fomina M.A., Zakharov К.Е., Volkov I.A., Ivanov A.L.
RESEARCH OF THE CORROSION AGGRESSIVENESS OF STRIPPERS OF NATIVE AND FOREIGN PRODUCTION USED FOR REMOVAL OF PAINT COATINGS

In this work was explored the removal possibility of strippers by acid, alkaline and organic bases, was explored the corrosion effect of strippers for typical metal materials for aircrafts the aluminium alloys 1163-T, B95-T2, the steel 30HGSA. The fact of the corrosive effect of strippers for metal materials was experimentally substantiated. The negative impact of the several strippers (in the case of their mixing) for the surface of the fragments of the aluminum alloy cladding, and, accordingly, on the resource characteristics (low-cycle fatigue), is studied, using the example of the B95-T2 alloy.

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10.
dx.doi.org/ 10.18577/2307-6046-2021-0-12-86-95
УДК 678.747.2
Boychuk A.S., Dikov I.A., Generalov A.S., Chertishchev V.Yu.
ULTRASONIC TESTING OF SPESIMENS AT THE DEVELOPMENT AND TESTING PROCESS OF NEW CFRP GRADES

Nondestructive testing results of carbon fiber reinforced plastics (CFRP) specimens at the development and testing process are given at that paper. Ultrasonic pulse-echo technique is the most applicable for CFRP monolithic panels and curved beam specimens testing. It is shown that ultrasonic testing allows optimizing the mode in the process of developing molding modes for new CFRP grades. At the test stages it allows to exclude defective specimens from the testing process and estimate the sorts and damage sizes after the tests.

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11.
dx.doi.org/ 10.18577/2307-6046-2021-0-12-96-106
УДК 620.179.16
Slavin A.V., M.A. Dalin, Dikov I.A., Boychuk A.S., Chertishchev V.Yu.
CURRENT TRENDS IN DEVELOPMENT OF ACOUSTIC NON-DESTRUCTIVE TESTING METHODS IN AVIATION INDUSTRY (review)

The document includes the below main trends in development of acoustic non-destructive testing methods in aviation industry: automation and enhancement of the sensitivity the testing, development of Procedures for acoustic non-destructive testing methods for products in case of repair and use of products, probabilistic assessment of the outcomes of the ultrasonic non-destructive testing, mathematic simulation of the ultrasonic non-destructive testing, development of the ultrasonic non-destructive testing by applying state-of-the-art technologies, development of the low-frequency acoustic testing methods, development of a Procedure on training of specialists who conduct NDT. The experience of NRC «Kurchatov institute» – VIAM is pointed out to show an example on the implementation of main trends on ultrasonic testing development.

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12.
dx.doi.org/ 10.18577/2307-6046-2021-0-12-107-116
УДК 620.193.8
Krivushina A.A., Terekhov I.V., Moskvitina K.N., Malysheva S.F., Kuimov V.A.
EFFICIENCY OF NEW FUNGICIDE COMPOUNDS BASED ON MODIFIED POLYSEPT FOR PROTECTION OF POLYMER MATERIALS AGAINST BIODETERIORATION

In order to protect polymer materials in particular polyurethanes and similar materials from biodeterioration by microscopic fungi, seven fungicidal compounds of the guanidine series were synthesized and their effectiveness was investigated in various concentrations. Among the tested compounds, the most effective is the first fraction of polyhexamethylene guanidine n-octylphosphonate (code B1), which completely suppresses the growth of all studied micromycetes at a minimum concentration of 0.01 % by weight. At a lower concentration of 0.001 % by weight, compound the first fraction of polyhexamethylene guanidine n-octylphosphonate inhibits the growth of most of the studied micromycetes, with the exception of the Aspergillus niger culture.

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13.
AUTHORS INFORMATION

Authors named

Position, academic degree

NRC «Kurchatov Institute» – VIAM; e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Leonid Y. Avilochev

Leading Engineer

Alexander A. Barannikov

First Category Engineer-technologist

Alexander S. Boychuk

Senior Researcher, Candidate of Sciences (Tech.)

Evgeny A. Veshkin 

Head of USTC, Candidate of Science (Tech.)

Karina A. Vlasova

Engineer

Ilia A. Volkov

Second Category Engineer

Alexander S. Generalov

Head of Laboratory, Candidate of Sciences (Tech.)

Alexander V. Gololobov

Second Category Engineer

Vitaly A. Goncharov 

Head of Laboratory

Mikhail A. Dalin

Head of Sector

Ivan A. Dikov

Leading Engineer

Victoria A. Duyunova 

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

Viktor V. Emelyanov 

Engineer

Alexander N. Zhabin

Leading Engineer

Denis V. Zaytsev

Leading Engineer

Kirill E. Zakharov

First Category Engineer

Andrey L. Ivanov

Leading Engineer

Victor I. Ivanov

Senior Researcher

Aleksey Yu. Isaev

Head of Laboratory, Candidate of Sciences (Tech.)

Natalia A. Kovrizhkina

Engineer

Anastasia A. Krivushina

Senior Researcher, Candidate of Sciences (Bio.)

Vera A. Kuznetsova 

Head of Sector, Candidate of Sciences (Tech.)

Evgeny V. Kurshev

First Category Engineer

Alexander A. Leonov

Head of Laboratory

Eva A. Lukina

Head of Laboratory, Candidate of Sciences (Tech.)

Natalia Ph. Lukina

Chief Researcher, Candidate of Sciences (Tech.)

Klavdia N. Moskvitina 

Engineer

Nadezhda A. Nochovnaya

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

Andrey N. Nyafkin

Head of Sector

Mikhail S. Oglodkov

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

Aleftina P. Petrova

Chief Researcher, Doctor of Sciences (Tech.)

Ekaterina A. Prokhorchuk

Technician

Ruslan A. Satdinov

Acting Head of Laboratory

Svetlana V. Sbitneva

Senior Researcher, Candidate of Sciences (Tech.)

Andrey V. Slavin 

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

Oleg I. Smirnov

Engineer

Ivan V. Terekhov 

Senior Researcher, Candidate of Sciences (Chem.)

Pavel N. Timoshkov

Head of Scientific-Research Bureau

Andrey V. Trapeznikov

Head of Sector

Maria N. Usacheva 

Second Category Technician

Marina A. Fomina

Head of Sector

Vasily Yu. Chertishchev

Leading Engineer, Candidate of Sciences (Tech.)

Georgy G. Shapovalov

Leading Engineer

Federal State-Funded Education Institution of Higher Education «Samara State Technical University»;

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

Vladimir I. Nikitin

Head of Chair, Doctor of Sciences (Tech.), Professor

Konstantin V. Nikitin 

Dean, Doctor of Sciences (Tech.), Professor

Irkutsk Institute of Chemistry named after A.E. Favorsky Siberian Branch of the RAS;

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

Vladimir A. Kuimov 

Senior Researcher, Candidate of Sciences (Chem.)

Svetlana F. Malysheva

Leading Researcher, Doctor of Sciences (Chem.)

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