Archive - Электронный научный журнал "ТРУДЫ ВИАМ"



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1. 10.18577/2307-6046-2014-0-5-1-1
УДК 669.14.018.295:621.78
Shcherbakov A.I., Mosolov A.N., Kalitsev V.A.
Recovery of technology for the beryllium-containing steel VNS-32-VI obtaining

This paper studied metallurgic features of the high-strength beryllium-containing steel VNS-32-VI obtaining including smelting in the vacuum induction furnaces, forging and rolling processes, heat treatment modes of hot-rolled bars with diameter 10–27 mm and forged to 50 mm, intended for hardwearing elements of fuel control apparatus. There were optimized temperature-time parameters of deformation and thermal treatment of bars working. These parameters provided the stability of the mechanical properties and low level of non-metallic inclusions. There were identified the ways of δ-ferrite embrit-tlement phase content decreasing in the steel.

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2. 10.18577/2307-6046-2014-0-5-2-2
УДК 669.295
Nochovnaya N.A., Panin P.V.
Residual macrostress analysis in welded junctions of different titanium alloys

In the present work residual stress analysis has been accomplished for welded junc-tions of the VT20 (Ti–6Al–2Zr–1V–1Mo), VT6 (Ti–6Al–4V), and VT23 (Ti–5.5Al–4.5V–2Mo–1Cr–0.5Fe) alloys wherein macrostress values and distribution thereof along the cross-section of welded junctions were in focus. It has been shown that tension stresses occur in the center of weld joints while compression stresses are detected in heat-affected zones independently of argon-arc or electron-beam welding method applied. For the studied alloys the following regula-rity has been revealed: the relative tension stress level decreases with the -stabilizing coefficient increase.

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3. 10.18577/2307-6046-2014-0-5-3-3
УДК 62-762: 629.7.03
Titov V.I., Goundobin N.V., Pilipenko L.V., Dvoretskov R.M.
Determination of silicon carbide and aluminum nitride in the sealing material on the basis of nickel

A method for determination of silicon carbide and aluminum nitride in uplotnitel′nom material based on nickel. Error of definition of these components does not exceed 5% RH.

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4. 10.18577/2307-6046-2014-0-5-4-4
УДК 669.245
Evgenov A.G., Nerush S.V., Vasilenko S.A.
The obtaining and testing of the fine-dispersed metal powder of the high-chromium alloy on nickel-base for laser metal deposition

Fine-dispersed metal powders of the heat resisting alloy brand EP648-VI for laser metal deposition (LMD), obtained by method of atomization at a facility HERMI-GA10/100 VI are investigated. It is shown, that the obtained fine-dispersed powders when spraying by cold and hot gas have low oxygen content, the spherical form, the expressed dendritic structure in all range of the granulometric distribution. Adaptive laser metal deposition with application metal powder of the heat resisting alloy EP648-VI of the granulometric distribution 40–80 microns on working off technology of recovery of geometry extreme combs on the bandage shelf of working blades of the second step guarantees high quality of welding material (availability of defects of typemicrocracks, lack of penetrations is not revealed).

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5. 10.18577/2307-6046-2014-0-5-5-5
УДК 669.245.018.44
Kablov D.E., Shompolov E.G., Sidorov V.V., Gorunov A.V.
The vacuum induction melting-pouring installation VIM 12 III hmc for high quality supperalloys nickel base production

The design of vacuum induction installations including the modern vacuum induction furnace VIM 12 III HMC ALD production (Germany) was considered. The VIM 12 III HMC installation has all necessary units and devices including transduceres for oxidized melt measure and conforms to modern requirements for a vacuum equipment. The installation permits to design the new effective basic processes of last generation cast supperalloys melting for single crystal casting and thereby to increase their operationale performances.

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6. 10.18577/2307-6046-2014-0-5-6-6
УДК 678.067.5
Beljaev А.А., Romanov A.M., Shirokov V.V., Shuldeshov Е.М.
Measurement of honeycomb glass fiber plasticspermittivity in free space

In given article a method of measurement of honeycomb glass fiber plastics permit-tivity in free space is considered. On the measured complex transiting ratio of the hon-eycomb glass fiber plastics sample its permittivity is calculated. The estimation of influ-ence rereflection between the sample and close located reception aerial is spent. Also comparisons of results of measurements in free space with results of measurements a waveguide method are resulted.

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