Articles

 


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1.
dx.doi.org/ 10.18577/2307-6046-2022-0-2-3-12
УДК 66.017
Rassokhina L.I., Bityutskaya O.N., Gamazina M.V., Avdeev V.V.
FEATURES OF THE DEVELOPMENT OF TECHNOLOGIES FOR THE MANUFACTURE AND REMOVAL OF CERAMIC CORES BASED ON FUSED QUARTZ FOR CASTING TURBINE BLADES FROM SUPERALLOYS

Technological parameters of removal of ceramic cores based on fused quartz from the inner cavity of turbine blade castings are selected and investigated. The results of studies of technological parameters of removal of ceramic cores based on fused quartz are presented, according to the results of which optimal technological parameters are selected and a technology for removing ceramic rods from fused quartz from the inner cavity of turbine blade castings is developed.

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2.
dx.doi.org/ 10.18577/2307-6046-2022-0-2-13-31
УДК 669.295
Kalashnikov V.S., Reshetilo L.P., Chuchman O.V., Naprienko S.A.
STRENGTH AND RELIABILITY OF RODS AND ROTOR BLADE STAMPS MADE OF HEAT-RESISTANT INDUSTRIAL TITANIUM ALLOYS AND MODERN PSEUDO-α-TITANIUM ALLOY

Presents the microstructure and mechanical properties of bars and blade forgings made of new heat resistant titanium alloy. A typical microstructures of studied industrial alloys were demonstrated. The main clue of the article is noted to fatigue stability of bars and forgings material. The analysis of strength and impact toughness of bars and blade forgings made of industrial titanium alloys VT3-1, VT8, VT8M-1, VT9, VT20 were carried out in comparison with new heat-resistant titanium near-a alloy.

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3.
dx.doi.org/ 10.18577/2307-6046-2022-0-2-32-51
УДК 678.8
Kablov E.N., Kondrashov S.V., Melnikov A.A., Schur P.A.
APPLICATION OF FUNCTIONAL AND ADAPTIVE MATERIALS OBTAINED BY 3D PRINTING (review)

Based on a review of scientific and technical literature, the main directions of using functional materials obtained by the FDM printing method in the development of sensors for various purposes and polymer actuators are identified. It is shown that to date, significant progress has been achieved in the field of printing sensors for various purposes: materials have been selected, a conceptual appearance of products has been developed, their characteristics have been investigated. The possibilities of using polymeric materials with shape memory for the manufacture of actuators obtained by the 3D printing method are demonstrated. It is noted that the uniqueness of this method of manufacturing actuators is associated with the ability to lay the stress diagram necessary for the operation of the device during the printing process.

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4.
dx.doi.org/ 10.18577/2307-6046-2022-0-2-52-63
УДК 678.8
Kondrashov S.V., Solovyanchik L.V., Larionov S.A., Volnyj O.S.
INVESTIGATION OF THE EFFECT OF FLAME RETARDANTS ON THE FLAMMABILITY AND FLUIDITY OF THE MELT OF ALIPHATIC POLYAMIDES

The paper presents the results of a study of the effect of fire retardants on the flammability and melt flow rate of aliphatic polyamides of the PA 66L, PA 610L, PA 66KS grades. The degree of this influence depends on the grade of polyamide, the type of fire retardant and its quantitative content. Among the selected grades of polyamides, polyamide PA 66L has the highest fluidity. The efficiency of using decabromodiphenyloxide and antimony trioxide to reduce the duration of residual combustion of polyamides of the studied brands is shown, compositions related to the category of «self-extinguishing» are determined.

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5.
dx.doi.org/ 10.18577/2307-6046-2022-0-2-64-74
УДК 669.017
Zhabin A.N., Nyafkin A.N.
MANUFACTURING OF METAL-MATRIX COMPOSITE MATERIALS USING ADDITIVE TECHNOLOGIES (review)

A review of scientific and technical literature in the field of obtaining metal-matrix composite materials (MMCM) reinforced with ceramic particles using additive technologies is presented. The structure, basic physical and mechanical properties and morphology of MMCM are briefly described. The structure and properties of MMCM reinforced with micro- and nano-sized ceramic particles are briefly described. The use of additive technologies for the manufacture of MMKM will make it possible to manufacture parts of a more complex shape, providing high adhesion between powder layers.

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6.
dx.doi.org/ 10.18577/2307-6046-2022-0-2-75-87
УДК 678.8
Afanaseva E.A., Shiryakina Yu.M., Kitaeva N.S., Novikova A.A.
POLYMER BINDERS IN ADVANCED TECHNOLOGIES OF POLYMER COMPOSITE MATERIALS PRODUCTION (review)

The article analyzes the scientific and patent literature about modern methods of manufacturing polymer composite materials. The main aspects of using automatic filler laying for preforms and the use of various polymer binders for stabilizing filler layers are considered. The requirements for polymer binders, types of production forms and the nature of the chemical structure, as well as their application are described. Methods of activation of polymeric binders by local and general actions are presented.

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7.
dx.doi.org/ 10.18577/2307-6046-2022-0-2-88-98
УДК 666.7
Sidorov D.V., Shavnev A.A., Melentev A.A.
FORMATION OF SILICON CARBIDE COATINGS BY CHEMICAL VAPOR DEPOSITION (review). Part 2

The article provides an overview of the scientific and technical literature in the field of the formation of silicon carbide coatings by chemical vapor deposition (CVD). CVD is a complex process, approaches to which vary depending on the tasks being solved. Depending on the technological parameters it is possible to achieve both the deposition of pure silicon carbide and the co-deposition of silicon and carbon, mixed coating In the article attention is paid to the study of CVD from the point of view of the kinetic and parameters for deposition and thermodynamic.

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8.
dx.doi.org/ 10.18577/2307-6046-2022-0-2-99-110
УДК 621.357.7
Salakhova R.K., Tihobrazov A.B., Farafonov D.P., Smirnova T.B.
FEATURES OF ELECTROLYTIC DEPOSITION OF ABRASIVE-WEAR-RESISTANT NICKEL-BASED COATINGS

An electrolytic method of deposition of composite abrasive-wear-resistant coatings based on nickel containing microparticles of zirconium dioxide with a dispersion of 120–200 microns in a metal matrix is proposed. A device for the application of a nickel abrasive-wear-resistant coating and a technological process diagram have been developed, which ensures uniform introduction of particles into the coating with the formation of the so-called «abrasive knife». The results of a metallographic study of the structure, micro-х-ray spectral analysis of a nickel matrix and tests of the coating for thermal cyclic resistance and penetration (abrasion of the sealing material) are presented.

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9.
dx.doi.org/ 10.18577/2307-6046-2022-0-2-111-121
УДК 620.172
Gorbovets M.A., Golinets S.A, Sukhov D.I., Monin S.A.
RESEARCH OF CHARACTERISTICS OF DURABILITY OF THE ALLOY OF Co–Cr–Ni–W–Ta SYSTEM, OBTAINED BY SLM

Additive manufacturing is increasingly used in the aviation industry. Its main feature is the manufacture of parts of complex external and internal geometric shapes without increasing the cost of their production. To calculate the resource of nodes and reliable operation of new equipment, it is necessary to have a set of calculated values of characteristics of structural strength, including the characteristics of tensile, creep rupture and high-cycle fatigue (HCF). The study of characteristics of tensile, creep rupture and HCF of the Co–Cr–Ni–W–Ta alloy obtained by the method of selective laser melting (SLM) is presented in this paper.

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10.
dx.doi.org/ 10.18577/2307-6046-2022-0-2-122-132
УДК 620.179.119
Lednev I.S.
INQUIRY OF THE PROPERTIES OF DETECTION MEDIA FOR MAGNETIC PARTICLE INSPECTION

The article presents the main properties of flaw detection materials for conducting magnetic particle inspection based on the analysis of GOST R ISO 9934-2–2011. A description of the verification of each parameter of flaw detection materials is presented and it is established how their nonconformity affects the effectiveness of control. The types of tests and which subjects should conduct them are shown. An experimental check of the detectability of defects depending on the particle sizes of flaw-detecting materials was carried out and it was found that the highest detectability is characteristic of a flaw-detecting material with a particle size of magnetic powder in the range of 0–15 microns.

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11.
dx.doi.org/ 10.18577/2307-6046-2022-0-2-133-141
УДК 669.017
Alekseev A.V., Orlov G.V., Petrov P.S.
ANALYSIS OF ALUMINUM-BASED CATHODES BY X-RAY FLUORESCENCE SPECTROSCOPY

The determination of Si, Y, Fe, Ni, Cu, Mg, Cr and Co in the cathodes of the VSDP-11 and VSDP-16 brands based on aluminum by the method of х-ray fluorescence spectroscopy was carried out. The calibration dependences are corrected taking into account the superposition of signals from interfering elements on the analytical signal and changes in intensity caused by inter-element influences in the matrix. A standard-free analysis was carried out using the method of fundamental parameters. The correctness of the results obtained was confirmed by a comparative analysis by atomic emission spectroscopy and high-resolution mass spectrometry with a glow discharge.

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12.
dx.doi.org/ 10.18577/2307-6046-2022-0-2-142-152
УДК 66.017
Kochubey A.Ya., Juravleva P.L.
X-RAYS DIFFRACTOMETRY APPLICATION AT PLOTTING OF STRUCTURE CONDITIONS DIAGRAMS OF DEFORMABLE ALLOYS OF AVIATION ASSIGNMENT

Axisymmetric hot compression experiments of nickel superalloy ЭП975-ИД, ЭП742-ИД and MA2, MA3 alloy specimens in a wide temperature and rate intervals were carried out. Structure formation was studied by х-ray diffractometry methods. Structure diagrams plotting method is based on using of the test machine which has been adjusted on compression, and structure studying is developed. Diagrams can be used for development and optimization of hot pressure technology parameters, for the purpose receiving preparations with the regulated structure.

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13.
CONTENТS

Heat-resistant alloys and steels

 

Rassokhina L.I., Bityutskaya O.N., Gamazina M.V., Avdeev V.V. Features of the deve-lopment of technologies for the manufacture and removal of ceramic cores based on fused quartz for casting turbine blades from superalloys

 

Light-metal alloys

 

Kalashnikov V.S., Reshetilo L.P., Chuch-man O.V., Naprienko S.A. Strength and reliability of rods and rotor blade stamps made of heat-resistant industrial titanium alloys and modern pseudo-α-titanium alloy

 

 

Polymer materials

 

Kablov E.N., Kondrashov S.V., Melnikov A.A., Schur P.A. Application of functional and  adaptive materials obtained by 3D printing (review)

 

Kondrashov S.V., Solovyanchik L.V., Lario-nov S.A., Volny O.S. Investigation of the effect of flame retardants on the flammabi-lity and fluidity of the melt of aliphatic polyamides

 

Composite materials

 

Zhabin A.N., Nyafkin A.N. Manufacturing of metal-matrix composite materials using additive technologies (review)

 

 

Afanaseva E.A., Shiriakina Yu.M., Kitaeva N.S., Novikova A.A.Рolymer binders in advanced technologies of polymer composite materials production (review)

Protective and functional

coatings

 

Sidorov D.V., Schavnev A.A., Melentev A.A. Formation of silicon carbide coatings by chemical vapor deposition (review). Part 2

 

 

Salakhova R.K., Tikhoobrazov A.B., Farafonov D.P., Smirnova T.B. Features of electrolytic deposition of abrasive-wear-resistant nickel-based coatings

 

 

Material tests

 

Gorbovets M.A., Golynets S.A., Sukhov D.I., MoninS.A. Research of Characteristics of Durability of the alloy of Co–Cr–Ni–W–Ta system, obtained by SLM

 

Lednev I.S. Inquiry of the properties of detection media for magnetic particle inspection

 

Alekseev A.V., Orlov G.V., Petrov P.S. Analysis of aluminum-based cathodes by x-ray fluorescence spectroscopy

 

 

Kochubey A.Ya., Zhuravleva P.L. X-rays diffractometry application at plotting of structure conditions diagrams of deformable alloys of aviation assignment

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