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Karasev, V.S.; Kovyrshin, V.G.; Chumak, N.A.; Chirko, L.I.; Shinakov, A.A.
Physics of radiation damage and radiation materials technology1992
Physics of radiation damage and radiation materials technology1992
AbstractAbstract
[en] The third stage of destruction (cracking of steel adapter) was investigated. During manufacturing of the adapter an additional carbonization of circonium alloy may occur. During service the corrosion of circonium alloy along the diffusion joint weld is accompanied by intensive hydride formation. This leads to strong tensile stress in the first step peak and to hydrogenization of the steel. Changes in the structure and physical properties, arising due to these processes, promotes intergranular corrosion. Stress relaxation results in steel cracking along grain boundaries, which contain impurities segregated during service
Original Title
O vodorode, kak dopolnitel'nom faktore, sposobstvuyushzhem razrusheniyu nizhnikh stal'-tsirkonievykh perekhodnikov TK RBMK
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Source
Natsional'nyi Nauchnyi Tsentr, Kharkov (Ukraine). Khar'kovskij Fiziko-Tekhnicheskij Inst; Voprosy atomnoj nauki i tekhniki. Fizika radiatsionnykh povrezhdenij i radiatsionnoe materialovedenie; v. 1-2(58-59); 150 p; 1992; p. 55-58; ISSN 0134-5400;
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Zav'yalov, N.V.; Ivanin, I.A.; In'kov, V.I.; Savchenko, R.V.; Khokhlov, Yu.A.
Physics of radiation damage and radiation materials technology1992
Physics of radiation damage and radiation materials technology1992
AbstractAbstract
[en] A high current linear accelerator LU-50 is used to create a setup producing an intensive flux of Bremsstrahlung. The parameters of LU-50 and characteristics of radiation fields are presented. The technique is described for radiation stability studies in optical instruments employed in the diagnostics channels of thermonuclear reactors
Original Title
Linejnyj uskoritel' ehlektronov LU-50 VNIIEhF kak istochnik tormoznogo izlucheniya dlya issledovaniya radiatsionnoj stojkosti materialov pri pogloshchennykh dozakh do 10 Rad
Primary Subject
Source
Natsional'nyi Nauchnyi Tsentr, Kharkov (Ukraine). Khar'kovskij Fiziko-Tekhnicheskij Inst; Voprosy atomnoj nauki i tekhniki. Fizika radiatsionnykh povrezhdenij i radiatsionnoe materialovedenie; v. 1-2(58-59); 150 p; 1992; p. 126-128; ISSN 0134-5400;
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AbstractAbstract
[en] Pulse ionizing irradiation of hydrogenized metals leads to desorption of a considerable amount of hydrogen. As a result the elastic relaxation of the lattice occurs causing the formation of an acoustic wave of nonthermal nature with sound pressure greater than that of thermo acoustic waves. The amplitude of acoustic emission from Ti H2 excited by 30 MeV electron beam was found to be greater by a factor of 1,6 as compared to pure Ti
Original Title
Radiatsionno-akusticheskij ehffekt v metallogidridakh
Primary Subject
Source
Natsional'nyi Nauchnyi Tsentr, Kharkov (Ukraine). Khar'kovskij Fiziko-Tekhnicheskij Inst; Voprosy atomnoj nauki i tekhniki. Fizika radiatsionnykh povrezhdenij i radiatsionnoe materialovedenie; v. 1-2(58-59); 150 p; 1992; p. 33-34; ISSN 0134-5400;
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Averin, S.A.; Deniskin, Yu.S.; Shushlebin, V.V.; Panchenko, V.L.
Physics of radiation damage and radiation materials technology1992
Physics of radiation damage and radiation materials technology1992
AbstractAbstract
[en] Thermal and radiation creep, as well as long-term strength of an austenitic stainless steel were investigated as a function of sulphur content and niobium addition. Interrelation between the grain boundary sleep and the intergranular fracture, and an important role of the surface in the nucleation and propagation of crack were revealed by quantitative structural and fractographic studies. Irradiation and chemical composition were found to influence these processes
Original Title
Vliyanie oblucheniya, khimicheskogo sostava na deformatsiyu i razrushenie stali na osnove OX16H15 pri dlitel'nykh ispytaniyakh
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Source
Natsional'nyj Nauchnyj Tsentr, Kharkov (Ukraine). Khar'kovskij Fiziko-Tekhnicheskij Inst; Voprosy atomnoj nauki i tekhniki. Fizika radiatsionnykh povrezhdenij i radiatsionnoe materialovedenie; v. 1-2(58-59); 150 p; 1992; p. 83-96; ISSN 0134-5400;
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ALLOYS, AUSTENITIC STEELS, CARBON ADDITIONS, CHROMIUM ALLOYS, CHROMIUM STEELS, CHROMIUM-MOLYBDENUM STEELS, CHROMIUM-NICKEL STEELS, CHROMIUM-NICKEL-MOLYBDENUM STEELS, CORROSION RESISTANT ALLOYS, CRYSTAL STRUCTURE, HEAT RESISTANT MATERIALS, HEAT RESISTING ALLOYS, HIGH ALLOY STEELS, IRON ALLOYS, IRON BASE ALLOYS, MATERIALS, MECHANICAL PROPERTIES, MOLYBDENUM ALLOYS, NICKEL ALLOYS, RADIATION EFFECTS, STAINLESS STEELS, STEELS, TRANSITION ELEMENT ALLOYS
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Khanbekov, R.G.; Virgil'ev, Yu.S.; Rybalko, V.F.; Mirakhmedov, A.A.
Physics of radiation damage and radiation materials technology1992
Physics of radiation damage and radiation materials technology1992
AbstractAbstract
[en] Experimental results on the deuterium thermodesorption from pyrographite materials implanted with 25 keV ions to a fluence ranging from 1 · 1017 cm-2 to 8 · 10 18 cm-2 are reported. The deuterium release were studied during implantation. To investigate the process of deuterium desorption the pyrographite samples were neutron irradiated to a fluence of 1 · 1019...1 · 10 21 cm-2 in the temperature interval 70...80 degree C prior to deuterium implantation
Original Title
Termodesorbtsiya dejteriya iz pirouglerodnykh materialov
Primary Subject
Source
Natsional'nyi Nauchnyi Tsentr, Kharkov (Ukraine). Khar'kovskij Fiziko-Tekhnicheskij Inst; Voprosy atomnoj nauki i tekhniki. Fizika radiatsionnykh povrezhdenij i radiatsionnoe materialovedenie; v. 1-2(58-59); 150 p; 1992; p. 47-50; ISSN 0134-5400;
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Selishchev, P.A.; Karasev, V.S.; Totskij, A.Yu.; AN Ukrainskoj SSR, Kiev
Physics of radiation damage and radiation materials technology1992
Physics of radiation damage and radiation materials technology1992
AbstractAbstract
[en] The behavior of creep rate in crystal under irradiation is analyzed. Depending on irradiation conditions and crystal properties, various steady-state regimes of radiation creep were found to set in. However, a range of parameters (generation rate of point defects and temperature) was shown to exist, where an oscillation of creep rate is observed, instead of steady-state creep. Irradiation conditions, corresponding to the minimum and maximum values of oscillation amplitude, are also found. The phenomenon originates from self-sustained oscillations of concentrations of vacancies and interstitials, which are absorbed by dislocations and determine the creep rate. Interdependence between the loss rate of radiation defects and the specimen temperature provides a positive feedback, causing self-sustained oscillations
Original Title
Ostsillyatsiya skorosti polzuchesti v obluchaemom kristalle
Primary Subject
Source
Natsional'nyi Nauchnyi Tsentr, Kharkov (Ukraine). Khar'kovskij Fiziko-Tekhnicheskij Inst; Voprosy atomnoj nauki i tekhniki. Fizika radiatsionnykh povrezhdenij i radiatsionnoe materialovedenie; v. 1-2(58-59); 150 p; 1992; p. 18-22; ISSN 0134-5400;
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[en] This issue of 'Problems in Atomic Science and Technology', on the 'Physics of Radiation Damage and Radiation Materials Technology', is a collection of 24 papers on the effects on or processes in materials due to their irradiation by neutrons, ions in the energy range from a few tens of keV to several MeV (deuterium, helium, oxygen), and electrons. Included are studies on radiation damage of materials, on ion implantation, thermonuclear reactor materials testing, fast-particle energy loss ramifications for fusion reaction rates in materials, and biological radiation effects
Original Title
Fizika radiatsionnykh povrezhdenij i radiatsionnoe materialovedenie
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Secondary Subject
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Voprosy atomnoj nauki i tekhniki. Fizika radiatsionnykh povrezhdenij i radiatsionnoe materialovedenie; v. 1-2(58-59); 1992; 150 p; ISSN 0134-5400;
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Numerical Data
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BIOLOGICAL RADIATION EFFECTS, DEUTERIUM IONS, ELECTRON BEAMS, EXPERIMENTAL DATA, GRAPHITE, HELIUM IONS, ION IMPLANTATION, KEV RANGE 100-1000, KEV RANGE 10-100, LEADING ABSTRACT, METALS, MEV RANGE 01-10, NEUTRON FLUENCE, NONDESTRUCTIVE TESTING, OXYGEN IONS, PHYSICAL RADIATION EFFECTS, REACTOR VESSELS, THEORETICAL DATA, THERMONUCLEAR REACTIONS, THERMONUCLEAR REACTOR MATERIALS
ABSTRACTS, BEAMS, BIOLOGICAL EFFECTS, CARBON, CHARGED PARTICLES, CONTAINERS, DATA, ELEMENTS, ENERGY RANGE, INFORMATION, IONS, KEV RANGE, LEPTON BEAMS, MATERIALS, MATERIALS TESTING, MEV RANGE, NONMETALS, NUCLEAR REACTIONS, NUCLEOSYNTHESIS, NUMERICAL DATA, PARTICLE BEAMS, RADIATION EFFECTS, SYNTHESIS, TESTING
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AbstractAbstract
[en] The molecular dynamics method is used to study the propagation of Cu-O collision chains along (001) direction in Y Ba2 Cu3 O7 ideal crystallite with additional oxygen ions introduced into oxygen vacancies. It has been found that in some cases due to injection of additional oxygen ions the process of defect formation is replaced by radiation-stimulated diffusion. The angular dependences of the oxygen displacement threshold energy and its change due to presence of additional o-ions were calculated. The angular dependence of the activation energy for O-ions migration was also found
Original Title
Mekhanizm radiatsionno-stimulirovannoj diffuzii v VTSP
Primary Subject
Secondary Subject
Source
Natsional'nyi Nauchnyi Tsentr, Kharkov (Ukraine). Khar'kovskij Fiziko-Tekhnicheskij Inst; Voprosy atomnoj nauki i tekhniki. Fizika radiatsionnykh povrezhdenij i radiatsionnoe materialovedenie; v. 1-2(58-59); 150 p; 1992; p. 3-7; ISSN 0134-5400;
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Frantsenyuk, I.V.; Frantsenyuk, L.I.; Gofman, Yu.I.; Pis'menetskij, S.A.; Mizik, I.V.; Kovalenko, T.A.; Sukhova, T.F.
Physics of radiation damage and radiation materials technology1992
Physics of radiation damage and radiation materials technology1992
AbstractAbstract
[en] Advantages of a radiation-thermal treatment of metallic materials by relativistic electron beams are discussed. During such a processing structural and phase transformations occur in a material, resulting in the improvement of its strength, plasticity, wear resistance, impact viscosity and other properties. The radiation-thermal treatment was shown to accelerate recrystallization annealing of steel. The recrystallization temperature range of a low-carbon steel shifts to lower temperatures by 100 degree C, the time of treatment decreases by several times as compared to the conventional annealing. The radiation-thermal processing was concluded to be promising for industrial applications
Original Title
Primenenie relyativistskikh ehlektronnykh puchkov radiatsionno-termicheskoj obrabotki metallicheskikh materialov
Primary Subject
Source
Natsional'nyi Nauchnyi Tsentr, Kharkov (Ukraine). Khar'kovskij Fiziko-Tekhnicheskij Inst; Voprosy atomnoj nauki i tekhniki. Fizika radiatsionnykh povrezhdenij i radiatsionnoe materialovedenie; v. 1-2(58-59); 150 p; 1992; p. 39-41; ISSN 0134-5400;
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AbstractAbstract
[en] The survey gives the analysis of new data on spectral characteristics, total radiation energy losses and angular distributions of γ-radiation due to ultrarelativistic electrons in silicon single crystals of different thickness. Primary emphasis is placed on the experimental studies performed at the Kharkov Institute of Physics and Technology using a 1.2 GeV electron beam. Electron-to-photon energy conversion ratios are determined and the ''optium'' silicon single crystal thickness is found. Advantages of single crystals of a large thickness are demonstrated for applying them as radiation converters to produce intense high-bright-ness beams of γ-quanta, these being an efficient tool in the studies of radiation materials science
Original Title
Monokristall kak konvertor dlya preobrazovaniya ehnergii relyativistskikh ehlektronov v γ- izluchenie
Source
Natsional'nyi Nauchnyi Tsentr, Kharkov (Ukraine). Khar'kovskij Fiziko-Tekhnicheskij Inst; Voprosy atomnoj nauki i tekhniki. Fizika radiatsionnykh povrezhdenij i radiatsionnoe materialovedenie; v. 1-2(58-59); 150 p; 1992; p. 116-125; ISSN 0134-5400;
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