Articles

 


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1.
dx.doi.org/ 10.18577/2307-6046-2015-0-5-1-1
УДК 004.62
Vershkov A.V., Ospennikova O.G., Nerush S.V.
DEVELOPING THE CONCEPT OF THE INTEGRATED I NFORMATION SYSTEM ON THE PROPERTIES OF AIRCRAFT MATERIALS WITH THE ABILITY TO CALCULATING THE CHARACTERISTICS OF NEW MATERIALS BEING DEVELOPED
A concept of an integrated information system proposed for development to provide dataware for researches in the field of aviation materials is formulated. The main task of the information system and the basic criteria for its internal structure and development are defined.
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2.
dx.doi.org/ 10.18577/2307-6046-2015-0-5-2-2
УДК 669.018.95
Lomov S.B., Kuptsov R.S.
FORMATION OF STRUCTURAL COMPOSITE MATERIAL BASED ON MAGNESIUM REINFORCED WITH REFRACTORY PARTICLES WITH DIFFERENT CONTENT OF THE REINFORCING PHASE

Results of the research dedicated to the time-dependent formation of composite granules are described in the paper. Results of research of technological parameters of briquettes formed from the produced composite granules are shown. Process parameters for production of metal composite material based on magnesium reinforced by refractory particles (10-30 % vol.) by extrusion are analyzed. Mechanical properties of the material were tested and test results were used for correction of the process parameters of composite material formation.

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3.
dx.doi.org/ 10.18577/2307-6046-2015-0-5-3-3
УДК 621.791.1
Lukin V.I., Ioda E.N., Panteleev M.D., Skupov A.A.
FUSION WELDING OF VT18U TITANIUM ALLOY

An effect of filler material composition and conditions of heat treatment on mechanical properties, the level of residual stresses, structural features and the nature of fracture of welded joints of semiproducts (sheets and plates) from near α-titanium alloy made by automatic argon tungsten-arc welding and electron-beam welding was investigated. An influence of ultrasonic impact treatment (UIT) of welded joints on LCF characteristics was analyzed. It was established that UIT provides an improvement of fatigue characteristics more than 5 times.

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4.
dx.doi.org/ 10.18577/2307-6046-2015-0-5-4-4
УДК УДК 621.791
Lukin V.I., Koval’chuk V.G., Golev E.V., Khodakova E.A.
WELDING OF HIGH-STRENGTH CORROSION-RESISTANT STAINLESS STEELS

The modes of electron beam, automatic and manual argon-arc welding of new corrosion-resistant steels hardened by various processes and filler materials were chosen; processing characteristics, mechanical properties and structures of welded joints were investigated. VNS-72 and VNS-73-Sh steels alloyed with carbon and nitrogen are superior to carbon-bearing alloys in the complex of mechanical and corrosion properties. Welded joints from VNS-72 steel are applied after full heat treatment of joints. Welding of parts from VNS-73-Sh steel is carried out both prior to strengthening heat treatment and in heat-treated state. Welding of VNS-63-Sh steel is carried out in the annealed state; besides heat treatment, welded products are subjected to cementation.

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5.
dx.doi.org/ 10.18577/2307-6046-2015-0-5-5-5
УДК 629.7.023.224
Denisova V.S., Solovyova G.A.
GLASS ENAMEL COATINGS FOR STAINLESS STEELS PROTECTION AGAINST ATTACKS OF HOT GAS CORROSION: PROPERTIES AND APPLICATION FIELDS (REVIEW)

A review of state-of-the art scientific literature dedicated to synthesis and investigation of glass enamel coatings for protection of stainless steels against gas corrosion is presented. The results of investigations performed currently and the ways of enhancing the resistance properties and service life of products are shown. The compositions of advanced coatings under investigation providing better properties are given. The experience of VIAM to synthesize heat-resistant glass enamel coatings providing an effective long-term operation of parts made of nickel alloys and stainless steels at high operation temperatures was demonstrated.

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6.
dx.doi.org/ 10.18577/2307-6046-2015-0-5-6-6
УДК 666.37
Buchilin N.V., Prager E.P.
RHEOLOGY OF ALUMINA-BASED SLURRY SUSPENSIONS

The results of rheological investigations of alumina-based slurries are presented in the present article. It was considered that the mutually attractive forces appear between solid phase particles in suspensions providing formation of interconnections between the particles. The ranges for ratios between solid phase (sintered powders) and liquid phase (technological binding agent) were determined experimentally for slurries, when coagulation contacts and direct contacts between solid phase particles appear in the slurries.

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7.
dx.doi.org/ 10.18577/2307-6046-2015-0-5-7-7
УДК 629.7.023.222
Khokhlov Y.A., Bogatov V.A., Berezin N.M., Krynin A.G.
REACTIVE MAGNETRON DEPOSITION OF ITO COATING ON THE POLYMER FILM USING A SECTIONALIZED GAS FEED SYSTEM

The distribution of thickness and properties (transmission coefficient, surface resistance) of an ITO coating fabricated by the reactive magnetron deposition on a polymer film using a sectionalized reactive gas feed system was investigated. It was shown that the uniformity of coating thickness and properties can be enhanced by optimizing the oxygen flow rate through different sections of the gas feed system.

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8.
dx.doi.org/ 10.18577/2307-6046-2015-0-5-8-8
УДК 678.027.96
Stolyankov Yu.V., Beider E.Ya., Platonov M.M., Petrova G.N.
A DEVICE FOR MACHINING OF FOAMED POLYMER MATERIALS

Some features of foamed polymer materials based on structure-purposed polyimides are considered in the article. Comparison of domestic foamed materials with their foreign analogues is also provided in the article to illustrate the possibility of their usage in the resource- and energy saving technology for production of three-layer sandwich panels. Existing processes for machining of the foamed material materials are described in the article in comparison with the offered device. Description of its structure and main advantages at machining of foamed polymers is given as well.

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9.
dx.doi.org/ 10.18577/2307-6046-2015-0-5-9-9
УДК 678.8
Timoshkov P.N., Platonov A.A., Khrulkov A.V.
FILM RESIN INFUSION AS AN ADVANCED METHOD FOR OUT-OF-AUTOCLAVE PROCESSING OF POLYMER COMPOSITES

A rapid increase in the portion of polymer composite materials (PCM) in structures of civil aircraft occurred in the 2000-s, allowed to increase significantly reliability and service life of aviation equipment and to reduce its weight. However, there was a vital problem to reduce the cost of PCM structures, which always were more expensive than similar parts made of metal. In many ways, the high cost of PCM products depends on high labor- and power consumption of autoclave technology, which at present is most widely used in the aircraft industry, as well as by high costs of relevant equipment. In recent years, VIAM actively develops the out-of-autoclave production of PCM parts. The results of the works performed by VIAM to develop PCM-based woven fillers produced by impregnation with film binder are described. Comparative elastic-strength characteristics of the produced carbon fiber-reinforced plastic are given.

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10.
dx.doi.org/ 10.18577/2307-6046-2015-0-5-10-10
УДК 669.293:621.791.35/.37
Titov V.I., Goundobin N.V., Pilipenko L.V.
DETERMINATION OF NIOBIUM IN VPr17 SOLDER

A possibility of determination of niobium content in VPr17 solder, which is used for flame soldering of thin-walled piping from 12X18H9T steel and other complex-alloyed steels was described. Weldability and solderability, as one of the indices of the physical properties of the material, are a function of its composition in terms of main alloying components and impurity elements. In this regard, it is necessary to regulate the chemical composition of different solders and to control strictly the content of chemical elements in their composition. In this work, we have developed a method for determination of niobium content in VPr17 solder within the concentration range of 0.5–1% mass.

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11.
dx.doi.org/ 10.18577/2307-6046-2015-0-5-11-11
УДК 620.177
Basargin O.V., Kolyshev S.G., Schetanov B. V., Shcheglova T.M.
SOME FEATURES OF HIGH-TEMPERATURE BEND TESTS OF Nb-based CM SPECIMENS

The development of high-temperature structural materials means determination of their strength properties at operation temperatures. The decisions of the main problems of mechanical tests of specimens made from Nb-based matrix composite materials (CM) at 1300–1400°С are described in this work.

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12.
dx.doi.org/ 10.18577/2307-6046-2015-0-5-12-12
УДК 666.162:629.12.011.83
Sentiourin E.G., Mekalina I.V., Petrova A.P., Frolkov Y.A.
HOW THE TRANSPARENT AIRCRAFT ARMOR WAS CREATED (to the 70th anniversary of the Great victory)

Creation of aviation armor became one of the glorious stages of the history of VIAM, aviation and science. In the war period, its development was of strategic importance for aviation. A special task was given to VIAM: bullet-resistant transparent glazing of aircraft should be developed within a short-time period. It was managed to solve this heavy task due to supreme effort. The laboratory for aircraft glazing established at VIAM had performed a real civil feat. A process for production of transparent armor not only for Il-2 attack aircraft, but also for Yak-1, Yak-3, Yak-9, La-5 and La-7 fighters was developed and commercialized on a tight timetable. In 1946, the related chief designers, top managers and employees of production plants were awarded with Stalin prize for development and mastering of transparent armor production technology. The laboratory for aircraft glazing established at the beginning of the war became a unique center of materials science and technologies of aviati

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