Articles

 


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1.
dx.doi.org/ 10.18577/2307-6046-2015-0-7-1-1
УДК 669.14
Muboyadzhyan S.A., Konnova V.I., Gorlov D.S., Aleksandrov D.A.
THE STUDY OF STEEL EP866SH FRETTING RESISTANCE

This article describes the experiments that were conducted to study fretting resistance steel EP866Sh. Strained bolt joints are made of the steel where the phenomenon of fretting occurs. Tests were conducted on a universal tribometer CETR UMT-3MT using R33HE1000 lower drive for reciprocating movement in the laboratory environment according to ASTM G204-10. During the experiments load intensity and the oscillation amplitude have changed. The method «pin-on-plate» was chosen to study the tribological properties of steel EP866. Estimated wear curves were conducted metallographic examination of samples.

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2.
dx.doi.org/ 10.18577/2307-6046-2015-0-7-2-2
УДК 669.85:669.721.5
Mostyaev I.V.
REE – QUALITY FACTOR INCREASE PROPERTIES OF MAGNESIUM ALLOY (review)

The article shows the characteristics of alloys based on magnesium, the effect of doping with rare earth elements (including Y, Nd, Sm, Tb and Sc) magnesium-based alloys the structure and mechanical, as well as performance characteristics. The effect of individual rare earth elements to magnesium-based alloys, and rare earth elements in the alloy more. The influence of alloying elements in the system Mg–Sm (Y)–Tb–Zr. It describes the effect of REE on the corrosion resistance of certain alloys doped with rare earth elements.

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3.
dx.doi.org/ 10.18577/2307-6046-2015-0-7-3-3
УДК 543.51: 669.1
Alekseev A.V., Yakimovitch P.V., Min P.G.
DETERMINATION OF IMPURITY IN ALLOY BASED ON Nb by ICP-MS. Part II

High temperature heat-resistant alloys based on Nb have a higher operating temperature compared to other alloys used in aircraft engine building, so their use can improve the performance of gas turbine engines. However, an important task is to control the chemical composition of niobium alloys, in particular the content of trace contaminants, which include tellurium, lead, and bismuth. Determination of Te, Pb and Bi in an alloy on the basis of Nb by a mass spectrometry method with inductively connected plasma (IСP-MS) is carried out. The way of overcoming of the disturbing influence of the alloying elements (Mo, Zr and Hf) on results of definition is developed. Spectral interferences are suppressed by additives of the disturbing element in the analyzed solution that allows to improve correctness of measurements. The correctness of measurement techniques tested by the «added–found» method. The use of a reactive collision cell reduced the disturbing influence on the determination of Te,

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4.
dx.doi.org/ 10.18577/2307-6046-2015-0-7-4-4
УДК 536.421.5
Lukin V.I., Rylnikov V.S., Loshinin U.V., Nischev K.N.
LOW-TEMPERATURE AGGLOMERATION OF ARGENTIFEROUS PASTE AT CONNECTION SILICON WITH MOLYBDENUM

The article is about investigating of heat effects taking place while drying and sintering of silver containing paste, used to get low temperature joints in system of «Si on Mo» for semiconductor elements. It was investigated the modifications in form and size of silver particles taking place during drying at different temperatures. The relationship between micro hardness of sintered layers and temperature was investigated.

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5.
dx.doi.org/ 10.18577/2307-6046-2015-0-7-5-5
УДК 669.293:669.245
Goundobin N.V., Titov V.I., Pilipenko L.V.
DETERMINATION OF NIOBIUM IN NICKEL SUPERALLOYS CONTAINING UP TO 30 WT% MOLYBDENUM

One of the difficult-defined number of alloying elements in high-temperature nickel alloys, while alloys in the presence of interfering elements molybdenum, tantalum, zir-conium, hafnium, et al. Is niobium. Creation of a new series of heat-resistant nickel alloys (ZHNS) for gas turbine engines (GTE) for the latest generation of power plants with cooling vanes, allowing to increase the temperature of the gas to 2100–2200 К, requires the development of new technologies for the production of the required alloys and semi-finished products, allowing to solve tasks. In order to control the content of niobium in these heat-resistant nickel alloys developed a method for determination of niobium in the concentration range of 1–15% by weight. alloys at a content of up to 30% by weight. Molybdenum spectrophotometric method with a reagent piridilazorezortsinom.

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6.
dx.doi.org/ 10.18577/2307-6046-2015-0-7-6-6
УДК 621.793.164
Panarin A.V., Ilyin V.A., Salakhova R.K., Smirnova T.B.
REGULARITIES OF FORMATION MICROSTRUCTURE, PHASE & CHEMICAL COMPOSITION OF PYROLYTIC CHROME-CARBIDE COATINGS

The work presents research results of microstructure deposited on aluminum casting alloys AL25 & AL26 pyrolytic chrome-carbide coating (PCCC). As an etchant was used Murakami’s reagent. Quantitative composition of selected etchant & modes of microsections etching optimized. Chrome-carbide coating's microstructure dependence from conditions of the deposition process showed. Chemical and phase compositions of PCCC identified.

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7.
dx.doi.org/ 10.18577/2307-6046-2015-0-7-7-7
УДК 629.7.023.224
Aleksandrov D.A., Muboyadzhyan S.A., Gorlov D.S.
INCREASING REINFORCING PROPERTIES OF ION-PLASMA COATINGS USING PLASMA ASSISTED DEPOSITION

The paper presents some results on the effect of assisted deposition (PA-PVD) on reinforcing properties of ion-plasma coatings, such as phase composition, lattice parameter, erosion resistance. The results metallophysical research, testing on erosion resistance of monolayer and multilayercoatings.

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8.
dx.doi.org/ 10.18577/2307-6046-2015-0-7-8-8
УДК 669.018.7
Stolyankov Yu.V., Aleksashin V.M., Antyufeeva N.V.
ON THE QUESTION OF GLASS-FORMING ABILITY TENDENCY EVALUATION (review)

Amorphous metal materials are well known for unique complex of properties inherent in them. There have been developed a lot of production means of amorphous metals in different conditions – from thin and up to bulk amorphous metal materials. The question of the most importance here is some practical approaches to glass-forming ability tendency evaluation the materials of the kind. It defines not only possibility of production the alloy in amorphous state, but also characterizes productivity of the production means and quality of the product

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9.
dx.doi.org/ 10.18577/2307-6046-2015-0-7-9-9
УДК 678.6
Babashov V.G., Butakov V.V., Basargin O.V., Nikitina V.J., Shcheglova T.M.
THE ESTIMATION OF VTI-16TM ANISOTROPY BY COMPARISON TENSILE STRENGTH OF THE SAMPLES, CUT OUT IN THE LONGITUDINAL AND CROSS DIRECTION

The results of the tensile strength of the flexible samples cut off from the VTI-16TM material in the longitudinal and cross direction, are presented in this paper. The aim of the investigation is to find out if the anisotropy presents in the material after rolling.

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10.
dx.doi.org/ 10.18577/2307-6046-2015-0-7-10-10
УДК 62-758.34:004.432
Shirokov V.V.
FEATURES OF APPLICATION HIGH-LEVEL PROGRAMMING LANGUAGES FOR CALCULATION RADIO ENGINEERING PARAMETERS OF SPECIAL PURPOSE MATERIALS

In this article features of application high-level programming languages for calculation radio engineering parameters are considered. Described programs for calculation radio engineering parameters of materials developed in VIAM. It is provided structure of the program for calculation factor of reflection the electromagnetic wave at normal falling on a nonmetallic single-layered isotropic material (located on metal).

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11.
dx.doi.org/ 10.18577/2307-6046-2015-0-7-11-11
УДК 678.84
Goncharov V.A., Raskutin A.E.
COMPUTER MODELING OF THE INFUSION PROCESS IN THE MANUFACTURE OF COMPOSITE ARCHED ELEMENT

The article contains the sequence of operations for modeling of manufacturing by infusion composite arched element. Described are phenomenological processes arising from the formation and critical characteristics that must be taken into account in the simulation.

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12.
dx.doi.org/ 10.18577/2307-6046-2015-0-7-12-12
УДК 678.8
Istyagin S.E., Postnov V.I., Veshkin E.A
HYDROTHERMAL TESTING OF THERMAL INSULATION PANELS

The results of studies of various thermal insulation panels made of fiberglass to communicate epoxy resin, filled with polyurethane foam (PPU). Test panels climate conducted in accordance with temperature stages. And also tried methods of nondestructive testing continuity foam filling PPU. The possibility of their use in the construction of dryers operating at temperatures up to 100°C.

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