G.D. Tolstolutskaya's research while affiliated with National Science Center Kharkov Institute of Physics and Technology and other places

Publications (70)

Article
Displacement cascades produce a variety of defects under reactor conditions, but of particular concern is the simultaneous production of helium (He) and hydrogen (H), which enhances the degradation of structural materials. The overall majority of performed studies on helium and hydrogen interactions with materials were based on ion beam irradiation...
Preprint
The radiation performance of 18Cr10NiTi-ODS steel with the addition of Y2O3-ZrO2 nano-oxides was compared with that of non-ODS 18Cr10NiTi austenitic steel in terms of radiation-induced hardening and cavity swelling. TEM observations were performed to evaluate the effect of grain refinement and nano-sized oxide precipitates on microstructural change...
Preprint
The radiation performance of 18Cr10NiTi-ODS steel with the addition of Y2O3-ZrO2 nano-oxides was compared with that of non-ODS 18Cr10NiTi austenitic steel in terms of radiation-induced hardening and cavity swelling. TEM observations were performed to evaluate the effect of grain refinement and nano-sized oxide precipitates on microstructural change...
Article
Досліджено мікроструктуру, твердість та кавітаційне зношування феритно-мартенситної сталі Т91, яку порівняно з іншими реакторними сталями марок Eurofer 97 і Cr18Ni10Ti. Виявлено, що кавітаційна стійкість сталі Т91 у 34 рази вища, ніж сталі Eurofer 97 та в 11 разів вища, ніж традиційно використовуваної аустенітної сталі Cr18Ni10Ti. Сталь Т91, легова...
Article
Ion implantation technique and nuclear reaction analysis were used to study the trapping behavior of deuterium by radiation defects in 316 austenitic stainless steel. Defect structure with a different ratio of displacement per atom (dpa) to argon gaseous impurity along with a depth has been formed by pre-irradiation of SS316 with 1.4 MeV argon ions...
Article
Full-text available
Safety of nuclear reactor (NR) and economic of nuclear power are determined to high degree by structural materials. Study of reasons of change of physical-mechanical properties of materials and of their dimensional stability under irradiation; determination of operation life of elements of nuclear power energetic assemblies in different conditions,...
Article
Full-text available
This work encompasses identification of the crystal structure and analysis of the TiC precipitates in 18Cr-10Ni-Ti austenitic stainless steel under Ar-ions irradiation. High resolution transmission electron microscopy (HRTEM) and energy dispersive spectroscopy (EDS) are used. Orientation relationship of TiC particles in surrounding matrix are indic...
Article
Full-text available
Effect of thermomechanical treatment on radiation hardening behavior in T91 ferritic-martensitic steel was evaluated. An applying of severe plastic deformation (SPD) by the “upsetting-extrusion” method and subsequent heat treatment led to a considerable grain refinement, crushing of martensite lamellas, reduction of MX carbides size and their more...
Article
Within the accident tolerant fuel cladding (ATFC) concept, chromium coatings appear to be promising for protecting zirconium alloys from high temperature oxidation. The effects of high energy heavy ion irradiation in the temperature range of 300-550°C on the structure of chromium coatings deposited on Zr-based (E110) alloy substrate by the cathodic...
Article
We study the accumulation of deuterium in coatings made of FeCrAl alloys and stainless steel, as well as (for comparison) in the Zr1%Nb alloy under the conditions of their saturation with a hydrogen isotope (deuterium) from a gaseous medium. By the method of nuclear reactions, we measure the space distribution of the concentration of deuterium in t...
Article
Full-text available
The swelling behavior of 18Cr10NiTi austenitic stainless steel and its strengthened by Y2O3-ZrO2 nanooxides version irradiated with 1.4 MeV Ar-ions up to dose 30 displacements per atom (dpa) with simultaneously implanted argon to the levels 200 appm at temperatures of 550…650 ºC was investigated. Transmission electron microscopy (TEM) has been used...
Article
Full-text available
The thermal desorption spectra of deuterium from 18Cr10NiTi and ODS 18Cr10NiTi steel specimens irradiated with 10 keV D2+ ions were examined. The influence of radiation damage on microstructure and accumulation of deuterium implanted in steels at room temperature and after annealing have been studied. Thermal desorption spectrum (TDS) from a specim...
Article
Full-text available
The microstructure and radiation resistance of T91 martensitic steel were studied after thermomechanical treatment. The physical and technological foundations of the process of creating of a nanostructured state in T91 reactor steel have been developed. This structure was received by severe plastic deformation of T91 steel by the multiple “upsettin...
Article
Full-text available
Processes of sputtering, surface modification and deuterium retention of tungsten coatings were studied under the influence of low-energy (500 eV) deuterium plasma with fluence (210 24 D + /m 2) at room temperature. The method of cathodic arc evaporation was used to deposit W and WN-coatings on stainless steel. Results of erosion studies indicated...
Article
Full-text available
The swelling behavior of 18Cr10NiTi austenitic stainless steel irradiated with energetic Ar-ions in the dose range of 40…105 displacements per atom (dpa) with simultaneously implanted argon to the levels of 0.08…6.3 at.% at temperatures of 550…700 ºC was investigated. Transmission electron microscopy (TEM) has been used to study the microstructure...
Article
Full-text available
Processes of sputtering and surface modification of FeCrAl coatings deposited on steel by vacuum arc was studied under the influence of low-energy (500 eV) deuterium plasma with fluence (4⋅10 24) D + /m 2 at room temperature. It was determined the composition of coatings by an energy dispersive X-ray spectrometer allowed to establish that the eleme...
Article
A single-phase fcc high-entropy alloy (HEA) of 20%Cr–40%Fe–20%Mn–20%Ni composition and its strength with yttrium and zirconium oxides version was irradiated with 1.4 MeV Ar ions at room temperature and mid-range doses from 0.1 to 10 displacements per atom (dpa). Transmission electron microscopy (TEM), scanning transmission electron microscopy with...
Article
High entropy alloys (HEAs) are considered for applications in nuclear reactors due to their promising mechanical properties, corrosion and radiation resistance. In order to understand the irradiation effects in HEAs and to demonstrate their potential advantages over conventional austenitic stainless steels, we performed helium ion irradiation exper...
Article
In the present paper processes of sputtering and surface modification of commercial and experimental FeCrAl composites alloyed with yttrium, molybdenum and zirconium were investigated. Using a field-emission scanning electron microscope, it was shown that under the influence of low-energy (500 eV) hydrogen plasma with a flux about 3.2 ⋅ 1020 m–2 ⋅...
Article
Ferritic-martensitic steel T91 was irradiated with 1.4 MeV Ar ⁺ ions to doses from 0.5 to 7 displacements per atom (dpa) at room temperature. Microstructure characterization was performed using transmission electron microscopy (TEM). TEM observations indicated that black dots and dislocation loops dominated the damage microstructure after ion irrad...
Article
Effects of high-energy heavy ion irradiation on the structure of chromium coatings, which were deposited by the cathodic arc evaporation method on the Zr-based alloy (E110) substrate, have been studied. Within the framework of the accident-tolerant fuel claddings (ATFC) concept, chromium coatings seem to be promising for protection of zirconium all...
Article
Full-text available
The surface topography of W bulk prepared by powder sintering (20 μm thickness) and W coatings deposited by cathodic arc evaporation and by argon ion sputtering was studied under the influence of low-energy hydrogen (deuterium) and helium plasma at room temperature. The surface modifications induced by the plasma irradiation were studied by scannin...
Article
The review considers the results of theoretical and experimental studies of hydrogen solubility, diffusion and permeation; the nature of hydrogen bonding with defects; critical levels of hydrogen accumulation, its distribution in the material bulk and mechanisms of interaction with the crystal. Changes of material structure in the presence of hydro...
Article
The nature of small point defect clusters in SS316 austenitic stainless steel irradiated with deuterium ions at room temperature was identified from their behavior under annealing. In this analysis, the defect clusters which evolved due annealing were judged to be of interstitial (I)-type and of vacancy (V)-type. The standard technique for Burgers...
Article
Irradiation-induced hardening has been investigated in relation to SS316 austenitic stainless steel. Samples were irradiated with 1400 keV/He and 1400 keV/Ar ions ions at fluences 0.01…10 displacements per atom (dpa) at room temperatures. Hardening of the surface layer was examined with nanoindentation. The behavior of the hardness-depth curve is a...
Article
The results of the study of surface topography evolution and the features of deuterium interaction with α-Fe under glow discharge 1 keV deuterium ions bombardment at Troom up to ion fluence of 3.4·10²⁴ D/m² are presented. At a threshold irradiation dose the formation of blisters with dimensions ranging from 0.01 to 1 mm is observed. The extent of b...
Article
Full-text available
The surface topography and deuterium retention in W, Ta and W-Ta coatings under the influence of low-energy deuterium plasma was studied. It was observed formation of blisters as dome and burst or delaminated structures. The W-Ta coatings showed improved characteristics: smaller sizes and density of blisters and a significantly lower thickness of t...
Article
A comparative investigation of the metal of drums of two TP-100 boilers at the Starobeshevskaya and the Lugansk thermal power stations (TPS) was performed. Their operation time was approximately 300000 hours; the shell of one drum was ruptured during a hydraulic test, and the other drum is in operation. According to the results of the technical dia...
Article
The release profile of deuterium from SS316 austenitic steel irradiated with low-energy deuterium ions was studied using thermal desorption spectroscopy as well as steel microstructure evolution after deuterium implantation and subsequent annealing by means of transmission electron microscopy. It was found that dislocation loops are predominant obs...
Article
Full-text available
Processes of blisters and associated subsurface cracks nucleation during exposure of 12Cr2MoNbVB ferritic-martensitic steel and α-Fe under glow discharge hydrogen (deuterium) plasma with ion energies of ~ 1 keV and ion fluencies up to 2·10²⁴ D/м² at various temperatures have been examined. The methods used were scanning electron microscopy, thermal...
Article
The review considers the solubility and diffusivity of hydrogen in iron and steels, its interaction with imperfections of the metal lattice, and the degradation of materials properties under the influence of implanted hydrogen. The processes leading to the development of blisters and subsurface cracks in EP-450 ferritic-martensitic steel and α-Fe u...
Article
Full-text available
Nanoindentation was used to measure the ion irradiation effect on hardening of Cr-Fe-Ni-Mn high-entropy alloys with different composition. Alloys were irradiated with 1.4 MeV Ar ions at room temperatures and midrange doses from 0.3 to 5 displacements per atom (dpa). Different methods of nanoindentation data processing were used to determine true va...
Article
We study the correlation between the radiation-induced hardening and the evolution of microstructure of SS316 stainless steel irradiated with 1.4 MeV Ar⁺ ions within the dose range 0–25 dpa at 300 and 900°K. It is shown that the degree of hardening attained under these doses can be as high as 75% and its saturation is observed at 2 dpa. The cluster...
Article
Full-text available
Surface topography and deuterium interaction with α-Fe under glow discharge hydrogen (deuterium) ions bombardment with energy of ~1 keV at ion fluencies of (0.02…1)·10²⁴ D/m² and various temperatures have been examined. The methods used were scanning electron microscopy, thermal desorption spectroscopy and the D(³He,p)⁴ He nuclear reaction. Formati...
Article
The effect of EP-450 ferritic-martensitic steel initial state on the origin and development of cracks when exposed to hydrogen glow discharge plasma studied. Steel EP -450 was studied in four initial states: after the cold rolling and subsequent stabilizing or recrystallization annealing, in state after conventional heat treatment (CHT) and after d...
Article
Full-text available
Depth distribution profiles of deuterium in zirconium alloy Zr-1Nb in initial state and with coatings Cr, CrN, and Cr2O3 after ion implantation with 15 keV/D+ at temperatures 350 °C to dose 1·1017D/cm-2 and deuterium plasma of glow discharge at room temperature are determined by the method of nuclear reactions. It is shown that in studied range of...
Article
Full-text available
Depth distribution profiles of deuterium in zirconium alloy Zr1Nb in initial state and with coatings CrN, CrAl and alumina after saturation in gaseous phase at temperature 300…600°C (P D = (2…9)·10-3 Pa, time – 120 minutes) or after ion implantation with deuterium are determined by the method of nuclear reactions. It is revealed that in studied ran...
Article
Accumulation and desorption of deuterium implanted in SS316 austenitic stainless steel to concentrations ~1 at.%, the influence of helium and radiation-induced defects on the process of mass transfer of deuterium and the mechanical properties of steel at different levels of damage were studied. The samples were irradiated with 15 keV/D, 30 keV/He a...
Article
The possibility of application of nanoindentation technique for investigation of mechanical properties (hardness and modulus of elasticity) of SS316 steel irradiated with 1.4 MeV Ar+ ions to a dose of 1·1017 cm-2 at 900 K has been considered. Methods of experimental data processing for extracting of physical characteristics of materials, in particu...
Article
The influence of deformation degree of ferritic-martensitic steel 13Cr2MoNbVB on origination and development of cracks under the influence of hydrogen plasma of glow discharge is investigated. The threshold dose of origination and kinetics of cracks growth is determined also as variation of their diameter and density in dependence on the degree of...
Article
The results of simulation experiments on different materials are analyzed. Using irradiation with charged particle beams one can reproduce and examine practically all the known radiation effects and investigate physical nature of these effects in more details under well-controlled conditions. Characteristics of some radiation sources used for studi...
Article
The Rutherford backscattering was used to determine thickness and composition of the plasma coatings on the Zr +1%Nb alloy, obtained at different nitrogen pressure in the discharge chamber. By the method of nuclear reactions were measured depth distribution of the deuterium concentration in the initial zirconium alloy and alloy with coatings after...
Article
The behaviour of hydrogen (deuterium) in austenitic 18Cr10NiTi stainless steel and ferritic/martensitic steels EP-450 and EI-852 were investigated. Energetic heavy-ion irradiation has beenused for modeling defect cluster formation under displacement cascade conditions to simulate nuclear-power environments. The influence of preimplanted argon on de...
Article
An experimental study of hydrogen/deuterium behavior in ferritic-martensitic stainless steels EP-450 (Cr13Mo2NbVB), EP-852 (Cr13Mo2VS), and RUSFER-EK-181 (Fe12Cr2WVTaB) is presented. The effect of displacement damage (dpa) resulting from irradiation with helium, hydrogen, and argon ions on features of deuterium detrapping and retention in steels wa...
Article
Full-text available
The experimental research on the irradiation of the functional design materials by the Helium ions in the linear accelerator is conducted. The experimental measurements techniques and data on the irradiation of the functional design materials by the Helium ions with the energy up to 4 MeV, including the detailed scheme of experimental measurements...
Article
The technique of simulation testing of materials used in the space industry for the screening of ionizing radiation, using high-energy protons (12-13 MeV energy) from the nuclear reaction (3He, d) and the use of semiconductor detectors based on crystals of CdZnTe for the detection of charged particles energy of up to several tens of MeV was develop...
Article
The results of the study of helium thermal desorption from polycrystalline samples of steel EP-450 implanted helium ions with energy of 12 keV to doses (5...10)·10 16 cm -2 are given. The effect of pre-created damage to the spectra of helium is considered. A comparison of temperature intervals of helium desorption from the ferriticmartensitic steel...
Article
The results of research of processes kinetics that occur in the system «zirconium-hydrogen» in the temperature range from gas atoms escape from the implantation profile to the start of atoms release from the crystalline lattice of metal are presented. Results are obtained by the methods of ion implantation, thermodesorbtion spectrometry (TD), nucle...
Article
Presented description of the plant and methods of construction materials irradiation by helium ions with energies up to 4 MeV. For irradiation of materials developed, manufactured and launched a new accelerating interdigital H type structure POS-4, in which to focus the beam uses the alternating phase focus with stepper synchronous phase change alo...
Article
The influence of an irradiation by argon ions (E = l, 4 MeV, 12 dpa) on microstructural parameters and physical and mechanical properties of austenitic steel KH16N15M3B, previously deformed by drawing at 77 K is investigated. From the analysis of measurement results of internal friction in temperature range 300...750 K, and also magnetic properties...
Article
Description of the complex of three charged particle accelerators the beams of which are aligned on the target is presented. The complex gives the possibility of simultaneous irradiation of materials by the beams of heavy ions for damage production on the level 1...200 displacements per atom and also by helium and hydrogen ions for investigation of...
Article
Structure evolution and degradation mechanisms during irradiation of 18Cr–10Ni–Ti steel (material of VVER-1000 reactor internals are investigated). Using accelerator irradiations with Cr3+ and Ar+ ions allowed studying effects of dose rate, different initial structure state and implanted ions on features of structure evolution and main mechanisms o...
Article
The problem of material development for operation in unique conditions of irradiation and evaluation of their radiation resistance consists in the use of existing irradiation facilities for determination of mechanisms of radiation damage and selection of materials with high radiation resistance. These experiments may be carried out under neutron ir...
Article
The accelerators and ion-beam analysis techniques are used for simulation of displacement damage and detailed investigation of distribution profiles of damage and impurity gas atoms (especially helium and hydrogen) in the irradiation of targets for a wide ranges of doses and particle energies. The influence of preimplanted helium and heavy ion-indu...
Article
An experimental study confirms the possibility of nuclear fusion reactions initiating in metal–deuterium targets by bombarding them with ions that are not the reagents of the fusion reaction, in particular, with noble gas ions. The yields of (d,d) and (d,t) reactions were measured as functions of energy (0.4–3.2 MeV) and mass of incident ions (He+,...
Article
Mechanisms of degradation of physical-mechanical properties of PVI steels during irradiation are studied. Microstructure evidence of influence of irradiation temperature, dose and dose rate on processes of low-temperature swelling and embritllement of pressure vessel internal materials, 18Cr-10Ni-Ti steel, of reactor WWER 1000 are presented. Micro...
Article
By the methods of channeling and mathematical simulation the distribution profiles of damage produced in Ni under irradiation by ions of He+, Ar+, Kr+, , Xe+ with energy 0.2-1 MeV in the range of doses 1015 ÷ 1017 cm-2 are investigated. Location of the implanted atoms of Xe in a Ni monocrystal lattice is determined; their interaction with radiation...
Article
The equipment and parameters of measuring system "ESU-2" are described. Measuring system allow to use the sets of the ion beam analysis techniques including Rutherford backscattering spectroscopy (RBS), channeling, nuclear reaction analysis (NRA). The ion beam technique and methodologies for the analysis of experimental data provide a comprehensive...
Article
In this paper, the activity of Kharkov Institute of Physics and Technology (KIPT) which during many years was involved into the field of simulation and investigation of radiation damage in reactor materials, is described. It is well known that charged particle accelerators are widely used for obtaining express information on radiation resistance an...
Article
There is strong interest in the accelerator-driven transmutation technology community on the synergistic effects of displacement damage and co-generated helium and hydrogen on property changes such as void swelling, irradiation creep, hardening, and possibly on corrosion and cracking. Substituting deuterium for protium offers advantages in experime...
Article
Initial treatment induced changes of the depth distribution and thermal desorption of deuterium implanted in Kh18N10T austenitic stainless steel have been investigated. It is shown that change of the steel surface condition increases the concentration of deuterium trapped by radiation induced defects, and shifts the temperature range of deuterium r...

Citations

... Of greatest interest is the study of the features of these gases interaction with metals and their effects on the physical and mechanical properties of the material, since hydrogen and helium, accumulating in the metal parts of the structures, facilitates the appearance of defects, and as a consequence the destructionthe manifestation of the phenomena of cavity swelling [4,5], high-temperature grain boundary embrittlement and lowtemperature hardening [3]. Various aspects of the behavior of ion-implanted helium and hydrogen in metals, their interaction with micro-and macrodefects as well as the defect microstructure evolution were studied in recent decade [7][8][9][10][11][12]. ...
... In addition, it's well known that swelling of bcc-materials (Fe-Cr steels) typically is much lower than widely used austenitic base alloys. Moreover, swelling of steels with 9% Cr and which have mainly martensitic structure is lower than in 12% steels, structure of which consisted of both martensite and ferrite [20][21][22]. ...
... The most important product of nuclear transmutation reactions is gaseous helium and hydrogen. To simulate the processes occurring with the participation of these atoms, the microstructure Cr-Fe-Ni-Mn high-entropy alloy and 18Cr10NiTi stainless steel after irradiation with helium ions to 4.8 dpa and 11.7 at.% at T room and postirradiation annealing was investigated [74] (Fig. 15). a b Fig. 15. ...
... It was shown [4] that argon can be used as an analogue of helium in implantation-and-annealing experiments, provided that the doses are adjusted so that the gas concentrations are equivalent. ...
... Radiation-induced defects and the subsequent cascades within chromium have been investigated using both computational methods 32 and experimental techniques [33][34][35] . For instance, Maier et al. used in situ ion irradiation and TEM to study cold spray deposited Cr coatings for use in accident tolerance fuel cladding. ...
... In addition, it's well known that swelling of bcc-materials (Fe-Cr steels) typically is much lower than widely used austenitic base alloys. Moreover, swelling of steels with 9% Cr and which have mainly martensitic structure is lower than in 12% steels, structure of which consisted of both martensite and ferrite [20][21][22]. ...
... This is probably because the twin grain boundaries provide slip channels for dislocations. Voyevodin et al. [111] reduced the grain size of CrFeMnNi HEA by introducing dispersed oxides. The corresponding irradiation hardness increment and hardening rate are depicted in Figure 17. ...
... For comparison sputtering yields of Fe, Cr and W are shown [8] Fig . 6 shows the results for the sputtering yield of FeCrAl coatingin comparison with FeCrAl alloy that were used as cathodes [6] and published data of pure iron, chromium and W sputtering yields determined experimentally and by numerical simulation [7,8]. ...
... Several types of hydrogen traps are currently known including lattice spacings, dislocations, grain boundaries, vacancy clusters, and precipitates. The hydrogen trapping at the inclusions, to some extent, can lower the amount of diffusible hydrogen in the matrix, and consequently improve the resistance to hydrogen embrittlement [24]. However, about the mechanism of hydrogen trapping at the inclusion matrix interface there are conflicting opinions. ...