Перегляд за темою "Physics and the technology of construction materials"

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Analyses of structure phase stability of U-Mo target of the neutron source

Borts, B.V.; Laptev, I.N.; Parkhomenko, A.A.; Vanzha, A.F.; Vorobjev, I.A.; Marchenko, Yu.A. (Вопросы атомной науки и техники, 2020)

The paper presents analyses of structure phase stability of fuel materials by means of phase diagrams of martensite transformation method, proposed earlier for the system of “iron-carbon-vacancy”. It was shown that role ...
Application of interval analysis for improving reliability of estimation of hardness value spread for nuclear structural materials

Yefimov, A.V.; Potanina, Т.V. (Вопросы атомной науки и техники, 2020)

The applications of the interval and standard probabilistic approaches for verifying the reliability of the results of an experiment studying the mechanical properties of nuclear materials are compared. The presence of ...
Assessment of impacting the thin protective coatings on the stress–strain state of the cladding of fuel rods of nuclear reactors

Povolotskii, E.V.; Romashov, Yu.V.; Mamalis, A.G. (Вопросы атомной науки и техники, 2020)

It is proposed the approach for estimating the impact of thin protective coatings on the stress–strain state of the thick–walled claddings of cylindrical fuel rods considering internal and external pressures from fission ...
Basic approaches to the choice of material for working blades of the last stages of the LPC of powerful steam turbines

Slaston, L.O.; Ishchenko, M.G.; Sherfedinov, R.B.; Alyokhina, S.V. (Вопросы атомной науки и техники, 2020)

The paper outlines the need for a comprehensive analysis and selection of steels for the working blades of the last stages of low pressure cylinders (LPC) of high-power steam turbines. The authors reviewed the criteria and ...
Components of automated intellectual systems supporting decisions at the stage of operation and equipment diagnostics of nuclear power units

Yefimov, О.V.; Pylypenko, М.М.; Potanina, Т.V.; Yesypenko, Т.О.; Kavertsev, V.L.; Harkusha, Т.А. (Вопросы атомной науки и техники, 2020)

The results of studies of parameters, characteristics and performance of NPP units by mathematical modeling methods using computer–integrated technologies for their implementation, which allow to simulate many functional ...
Concomitant extraction process of niobium at the titanium tetrachloride production

Sarsembekov, Т.К.; Yanko, Т.B.; Sidorenko, S.A.; Pylypenko, M.M. (Вопросы атомной науки и техники, 2020)

Development of the fundamentals of a technology for producing niobium by the concomitant extraction in the process of production of titanium tetrachloride from titanium raw materials. The paper provides data on the amount ...
Current state of methods for low–dense constructional composite materials producing (overview)

Shcherbakova, E.P.; Prokhorova, A.D.; Karpenko, A.V.; Yanko, T.B. (Вопросы атомной науки и техники, 2020)

The analysis of existing methods for imparting a porous structure to structural composite materials is carried out. In particular, the introduction and subsequent removal of the filler, the addition of foaming agents or ...
Effect of electronic radiation on the evolution of nanostructure and creep of Zr at the temperature of 670 K

Karaseva, E.V.; Mats, A.V.; Mats, V.A.; Savchuk, E.S.; Sokolenko, V.I.; Тitоv, D.V. (Вопросы атомной науки и техники, 2020)

The effect of electron irradiation on the creep and evolution of the zirconium nanostructure obtained by the SPD method and previously relaxed by ultrasound is studied. It has been shown that the electron irradiation (with ...
Elastic interaction energy of point defects with a basal dislocation loop in zirconium

Trotsenko, O.G.; Babich, A.V. (Вопросы атомной науки и техники, 2020)

Based on the tensor Green's function for hexagonal crystals obtained by the Lifshitz-Rosenzweig method, the analytical expression of the elastic interaction energy of radiation point defects is calculated in the model of ...
Electron irradiation, temperature, and stress effect on corrosion of Zr-, Ni-Cr-, and Fe-Cr-based alloys in the vicinity of the water coolant supercritical transition

Bakai, O.S.; Boriskin, V.M.; Bratchenko, M.I.; Dyuldya, S.V. (Вопросы атомной науки и техники, 2020)

Quantitative regularities of the Zr-1%Nb alloy, Ni-Cr alloy 690 and Fr-Cr stainless steel (SS) 12X18H10T corrosion in the near-critical domain (23.5 MPa, 360…380 °C) of a circulating water coolant are searched using ...
Experimental study on radioactive waste immobilization in low-temperature magnesium-potassium phosphate ceramic matrix

Sayenko, S.Yu.; Shkuropatenko, V.A.; Pylypenko, A.V.; Zykova, A.V.; Karsim, S.A.; Andrieieva, V.V.; Moshta, S.V. (Вопросы атомной науки и техники, 2020)

Results of the studies carried out in NSC KIPT on application of magnesium-potassium phosphate ceramic matrices for immobilization of cesium, clinoptilolite with a cesium and solidified simulators of highly-active waste ...
Facility for hydrogenation and thermal testing of internally pressurized dummy fuel rods

Dolgiy, V.A.; Chunosov, V.A.; Kokosha, D.L.; Chernyayeva, Т.P.; Grytsyna, V.M.; Riedkina, G.P. (Вопросы атомной науки и техники, 2020)

A facility allowing to conduct experiments on dummy fuel rods up to 250 mm long, at temperatures up to 700 °C is presented. The designed facility is unique in that the conditions for the tests to be conducted on it most ...
Improving the efficiency of the unit of the Zaporizhzhia NPP with a WWER–1000 reactor

Cheilytko, A.A.; Karpenko, A.V.; Ilin, S.V. (Вопросы атомной науки и техники, 2020)

Improving the efficiency of the unit of the Zaporizhzhia NPP with a WWER–1000 reactor, by reducing the water temperature at the inlet to the condenser. The work describes the description of the NPP and the nuclear power ...
Influence of mechanical-thermal treatment on the microstructure and current-carrying capacity of Nb-Ti-superconductor

Storozhilov, G.E.; Andrievskaya, N.F.; Tikhonovsky, M.A. (Вопросы атомной науки и техники, 2020)

A correlation between the modes of mechanical-thermal treatment, main microstructure parameters and the critical current density Jc in the superconducting alloy Nb-49 wt.% Ti was established. The studies were carried out ...
Influencing of thin protective coatings on natural frequencies of radial oscillations of claddings of fuel rods of nuclear reactors

Mazurenko, Yu.E.; Romashov, Yu.V.; Mamalis, A.G. (Вопросы атомной науки и техники, 2020)

The natural frequencies and the modes of the radial oscillations are computed by using the method of grids for the cylindrical claddings made with the thin protective coatings for the fuel rods of the nuclear reactors. It ...
Intense plastic deformation of high-purity cast beryllium

Vasilev, A.A.; Stetsenko, S.P.; Vasilenko, R.L.; Malykhin, D.G.; Stoyev, P.I.; Khovrich, S.V.; Trembach, O.V.; Kovtun, K.V. (Вопросы атомной науки и техники, 2020)

The effect of intense plastic deformation on the mechanical properties, structure, and texture of high-purity cast beryllium was studied. For the first time, angular pressing of high-purity cast beryllium was carried out ...
Investigation into hydride reorientation in dummy fuel rod cladding (Zr-1%Nb) under internal pressure during testing simulating SNF handling and accidents with limiting cladding heating up to 410 °С

Riedkina, G.P.; Chernyayeva, Т.P.; Grytsyna, V.M.; Krasnorutskyy, V.S.; Petelguzov, I.A.; Slabospytska, O.O. (Вопросы атомной науки и техники, 2020)

This paper presents the results of experimental investigations into hydride reorientation that (HRT) can occur in fuel rod claddings under conditions simulating normal and some accident SNF handling modes with limiting ...
Investigation on corrosion properties of carbon-carbon composites

Gribanov, Yu.A.; Gurin, I.V.; GujdaGujda, V.V.; Bukolov, A.N.; Kolosenko, V.V. (Вопросы атомной науки и техники, 2020)

The corrosion resistance of carbon-carbon composite materials (C–C composites) was studied in a corrosive media of coolant NaF+ZrF₄ salt (a model heat-transfer) at 700 °С in the air flow. It has been shown that C–C composite ...
Mineral insulators for kompton detectors of neutrons with a metal hafnium emitter

Bohdan, E.A.; Pirozhenko, L.A.; Azhazha, R.V.; Khudyakov, S.V.; Vierovkin, A.A.; Rybka, A.V.; Kutny, V.E.; Kovtun, K.V.; Sokolov, S.A.; Ulybkin, A.L.; Pudov, A.O. (Вопросы атомной науки и техники, 2020)

One of the priority tasks of nuclear power industry is to increase the reliability and safety of nuclear power plants. In this regard, traditional detectors for measuring the neutron flux in the reactor core are being ...
Modification of the aluminum alloy by the radiation and mechanical treatment

Donets, S.E.; Lytvynenko, V.V.; Klepikov, V.F.; Lonin, Yu.F.; Ponomarev, A.G.; Selivanov, S.Ye.; Starovoytov, R.I.; Uvarov, V.T. (Вопросы атомной науки и техники, 2020)

The paper discusses the problem of increasing the performance properties of aluminum alloy D16 for possible more efficient use in the fields of transport engineering. A property modification tool is a high current relativistic ...

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Перегляд за темою "Physics and the technology of construction materials"

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