PERSPEKTIVNYE MATERIALY
2021, no. 6
Diffusion-thermal phase transformations
in titanium hydride containing
a multi-quality system of hydrogen traps
R. N. Yastrebinsky, G. G. Bondarenko, V. I. Pavlenko,
A. A. Karnaukhov
Diffusion-thermal phase transformations in a modified titanium hydride containing a multiparting system of hydrogen traps. Modification of titanium hydride was carried out by the method of layer-by-layer electrochemical precipitation of metallic titanium and copper from organic and inorganic solutions of their salts. The creation on the surface of the titanium hydride of a multilayer coating (Ti – Cu) obtained by the electrochemical precipitation method increases the thermal stability of the metal hydride system by 229.7 °C. Methods of X-ray-phase, X-ray structural and electron-probe microanalysis are shown, the constancy of the phase composition of the modified titanium hydride in the temperature range of 100 – 700 °C. The most essential defects of the crystal lattice in a modified titanium hydride occur at a temperature of 500 °C — due to the hydrogenation of the modification titanium shell and blocking the microcrack of the surface with a copper coating, the period of the elementary cell and the volume of the hydride phase crystal volume changes. The largest concentration of hydrogen in the surface layer (up to 87.9 %) occurs in the temperature range of 300 – 500 °C, which ensures the maximum density of defects in the crystal lattice. At 700 °C, a dislocation density decreases and a decrease in the crystal cell parameters associated with the annealing mode of titanium hydride and hydrogen thermal diffusion into the volume of material. A metallic titanium precipitated on the titanium hydride surface is an effective structural trap of hydrogen diffusing to surface layers during thermal heating, and the creation of an additional protective copper sheath prevents the thermal diffusion of hydrogen into the environment.
Keywords: titanium hydride, modification, thermal heating, hydrogen diffusion, diffraction characteristic, phase composition.
DOI: 10.30791/1028-978X-2021-6-5-15
Yastrebinsky Roman — Belgorod State Technological University named after V.G. Shukhov (46 Kostyukova street, Belgorod, 308012, RF), Dr Sci (Eng), director of the Chemical institute of technology, specialist in the field of physics of condensed media, radiation materials, physical and colloid chemistry. E-mail: yrndo@mail.ru.
Bondarenko Gennady — National Research University Higher School of Economics (20 Myasnitskaya Ulitsa, Moscow 101000 Russia), Dr Sci (Phys-Math), professor, specialist in the field of physics condensed media, radiation materials, physicochemical properties of substances. E-mail: bondarenko_gg@rambler.ru.
Pavlenko Vyacheslav —Belgorod State Technological University named after V.G. Shukhov (46 Kostyukova street, Belgorod, 308012, RF), Dr Sci (Eng), head of department of Theoretical and applied chemistry, specialist in the field of physics of condensed media, radiation materials, physical and colloid chemistry. E-mail: belpavlenko@mail.ru.
Karnaukhov Aleksandr — Belgorod State Technological University named after V.G. Shukhov (46 Kostyukova street, Belgorod, 308012, RF), graduate student, specialist in the field of physics of condensed media, radiation materials science. E-mail: gamma.control@ya.ru.
Reference citing
Yastrebinsky R.N., Bondarenko G.G., Pavlenko V.I., Karnaukhov A.A. Diffuzionno-termicheskie fazovye prevrashcheniya v gidride titana, soderzhashchem mnogobar'ernuyu sistemu lovushek vodoroda [Diffusion-thermal phase transformations in titanium hydride containing a multi-quality system of hydrogen traps]. Perspektivnye Materialy — Advanced Materials (in Russ), 2021, no. 6, pp. 5 – 15. DOI: 10.30791/1028-978X-2021-6-5-15
The pure yttrium oxide microspheres
for nuclear medicine
N. A. Belousova, A. B. Lisafin
Cancers of liver are a problem of modern medicine. A common method of treatment is surgery. In patients who do not need surgery, various methods of local exposure can be prescribed (radiofrequency ablation, chemoembolization, brachytherapy, etc.). In the last decade, a method of treating cancer of liver — radioembolization of the liver-has been introduced into practice. The method is based on selective intra-arterial injection of glass or rubber microspheres containing yttrium radionuclide, resulting in local radiation exposure to tumor tissue. Recently, there has been increasing interest in the production of ceramic microspheres of the yttrium-90 (90Y) isotope. Narrow-fraction microspheres of pure yttrium oxide were obtained as a result of processing yttrium oxide powder in an air RF plasma. The resulting microspheres were subjected to ultrasonic treatment in deionized water, as a result of which the total specific surface area of the particles decreased by 10 %. Yttrium oxide microspheres were etched in a solution of sodium chloride for 11 days, after which the surface of the particles did not undergo significant changes. As a result, microspheres were obtained that have potential applications in nuclear medicine.
Keywords:microspheres, yttrium oxide, RF plasma, heat treatment of powders, spheroidization, liver cancer, nuclear medicine.
DOI: 10.30791/1028-978X-2021-6-16-21
Belousova Natalya — LLC “BION” (Obninsk, 249032, Kaluga region, Kiev highway, 109), chemical engineer, specialist of pharmaceutical materials science. E-mail: belousova.natasha96@yandex.ru.
Lisafin Aleksandr — LLC “Technokeramika” (Obinsk, 249100, Kaluga region, Zhukov area, Verchovie village), head of sector RF processes, specialist in plasma treatment. E-mail: a.lisafin@technokeramika.ru.
Reference citing
Belousova N.A., Lisafin A.B. Mikrosfery iz oksida ittriya dlya yadernoj mediciny [The pure yttrium oxide microspheres for nuclear medicine]. Perspektivnye Materialy — Advanced Materials (in Russ), 2021, no. 6, pp. 16 – 21. DOI: 10.30791/1028-978X-2021-6-16-21
Ceramic composite membranes based
on Bi3Ru3O11 – Bi1,6Er0,4O3
for obtaining of oxygen
P. E. Dergacheva, I. V. Kulbakin, S. V. Fedorov,
A. S. Lysenkov, V. V. Artemov
Using hot uniaxial pressing in an argon atmosphere with a stress of 35 MPa and with a holding at 800 °C for 1 hour, ceramic composites of Bi3Ru3O11– 50, 65 wt % Bi1,6Er0,4O3 were obtained. It was found that phase composition of the composites does not change during gas chromatographic testing at 800 °C and well corresponds to the specified one. Microstructure of the obtained composites was tested and the formation of dense composites with a total porosity of less than 1% and with a uniform distribution of the Bi3Ru3O11 and Bi1,6Er0,4O3components in bulk of material was demonstrated. Transport properties (total conductivity, oxygen fluxes and selectivity of separating oxygen over nitrogen) of the obtained composites at 600 – 800 °C had been investigated. Thus, at 800 °C the electrical conductivity of Bi3Ru3O11 – 50, 65 wt % Bi1,6Er0,4O3 was about 200 and 50 Ohm–1∙cm–1, respectively, while the metallic nature of their temperature dependence of conductivity is correlated to that for the Bi3Ru3O11. The value of oxygen permeability for the obtained ceramic composites of about 7∙10–9 mol·cm–1·s–1 at 800 °C, which is compared to other membrane materials based on bismuth oxide, demonstrated the potential of their further use in the tasks for obtaining of pure oxygen from air.
Keywords:composite, mixed ionic and electronic conductivity, hot pressing, membrane, oxygen.
DOI: 10.30791/1028-978X-2021-6-22-28
Dergacheva Polina — Baikov Institute of Metallurgy and Materials Science (Moscow, 119334, Leninskii pr., 49), graduate student, research engineer, specialist in inorganic membrane materials science. E-mail: polinadergacheva@mail.ru.
Kulbakin Igor — Baikov Institute of Metallurgy and Materials Science (Moscow, 119334, Leninskii pr., 49), PhD, senior researcher, specialist in chemistry of new functional ceramic and composite materials, and in inorganic membrane materials science. E-mail: ivkulbakin@mail.ru.
Fedorov Sergey — Baikov Institute of Metallurgy and Materials Science (Moscow, 119334, Leninskii pr., 49), PhD, leading researcher, specialist in solid state chemistry, and in inorganic membrane materials science. E-mail: fedserv@rambler.ru.
Lysenkov Anton — Baikov Institute of Metallurgy and Materials Science (Moscow, 119334, Leninskii pr., 49), PhD, senior researcher, specialist in technology of ceramic and composite materials for functional and structural applications. E-mail: toxa55@bk.ru.
Artemov Vladimir — Federal Scientific Research Centre “Crystallography and Photonics” (Moscow, 119333, Leninskii pr., 59), PhD, senior researcher, specialist in electron microscopy. E-mail: artemov@ns.crys.ras.ru.
Reference citing
Dergacheva P.E., Kulbakin I.V., Fedorov S.V., Lysenkov A.S., Artemov V.V. Keramicheskie kompozicionnye membrany na osnove Bi3Ru3O11 – Bi1,6Er0,4O3 dlya polucheniya kisloroda [Ceramic composite membranes based on Bi3Ru3O11 – Bi1,6Er0,4O3for obtaining of oxygen]. Perspektivnye Materialy — Advanced Materials (in Russ), 2021, no. 6, pp. 22 – 28. DOI: 10.30791/1028-978X-2021-6-22-28
TiC – Cr3C2 – WC – NiCr – Mo – C
cermet plasma coatings
V. I. Kalita, A. A. Radiuk, D. I. Komlev,
A. B. Mihai`lova, A. V. Alpatov, D. D. Titov
Two bulk cermets TiC – WC – Cr3C2 – Ni 20 % Cr – Mo – 2.8% C after liquid-phase sintering at 1400 °C for 1 hour were used to manufacture powders for plasma spraying of coatings. Cermets were obtained with limited time of mechanical alloying at the stage of mixing. Plasma coatings were sprayed on a setup with a nozzle attached to a plasmatron for local protection of the sprayed particles from the air atmosphere. The content of WC – Cr3C2 – C in the cermets provided compensation for carbon losses at all stages of coating production and the formation of an annular zone, the volume of which determines the increase in the TiC content in the coatings by 20 % and the formation of additional carbides in the matrix. The microhardness of cermet with an initial carbide content of 60 % is 15.26 – 16.83 GPa with a load on the indenter of 200 G and 20.91 – 24.68 GPa with a load on the indenter of 20 G, the difference was explained by a scale factor. The contribution of the microhardness of carbides to the microhardness of cermet with an initial carbide content of 60% was estimated according to the rule of mixtures, proceeding from their volume fraction and microhardness of cermet under a load on the indenter of 20 G. In the initial powder for spraying, this contribution is high, 33.19 GPa, close to Hardness TiC. The contribution of microhardness of carbides in the coating is lower, 28.09 GPa.
Keywords: plasma spraying, coating, cermet, TiC – WC – Cr3C2 – C, nozzle to the plasmatron, carbon loss, calculation of microhardness of carbides.
DOI: 10.30791/1028-978X-2021-6-29-39
Kalita Vasilii — Baikov Institute of Metallurgy and Materials Sciences of Russian Academy of Sciences (Moscow, 119334, Leninsky Prospect, 49), Dr Sci (Eng), head of laboratory, specialist in the field of plasma spraying. E-mail: vkalita@imet.ac.ru.
Radiuk Aleksei — Baikov Institute of Metallurgy and Materials Sciences of Russian Academy of Sciences (Moscow, 119334, Leninsky Prospect, 49), junior researcher, specialist in the field of plasma spraying. E-mail: imet-lab25@yandex.ru.
Komlev Dmitry — Baikov Institute of Metallurgy and Materials Sciences of RAS (Moscow, 119334, Leninsky Prospect, 49), PhD, leading researcher, specialist in the field of plasma spraying. E-mail: imet-lab25@yandex.ru.
Mihai`lova Alexandera — Baikov Institute of Metallurgy and Material Science RAS (Moscow, 119334, Leninsky Prospect, 49), PhD, senior researcher, specialist in the field of X-ray phase analysis. E-mail: sasham1@mail.ru.
Alpatov Alexander — Baikov Institute of Metallurgy and Material Science RAS (Moscow, 119334, Leninsky Prospect, 49), PhD, senior researcher, specialist in the field of diagnostics of materials for the content of light elements. E-mail: alpat72@mail.ru.
Titov Dmitrii — Baikov Institute of Metallurgy and Material Science RAS (Moscow, 119334, Leninsky Prospect, 49), PhD, senior researcher, specialist in the field of analysis and technology for the production of ceramic materials. E-mail: mitytitov@gmail.com.
Reference citing
Kalita V.I., Radiuk A.A., Komlev D.I., Mihai`lova A.B., Alpatov A.V., Titov D.D. Kermetnye plazmennye pokrytiya TiC – Cr3C2 – WC – NiCr – Mo – C [TiC – Cr3C2 – WC – NiCr – Mo – C cermet plasma coatings]. Perspektivnye Materialy — Advanced Materials (in Russ), 2021, no. 6, pp. 29 – 39. DOI: 10.30791/1028-978X-2021-6-29-39
Effect of azo compounds on structure
and mechanical properties
of copper coating electrodeposited
on oxidized aluminum alloys
D. V. Belov, M. V. Maximov, S. N. Belyaev,
T. I. Devyatkina, G. A. Gevorgyan
This article discusses a new method for producing copper electrolytic coatings with high performance properties applied to oxidized aluminum alloys. The purpose of this work is to reveal the effect of the azo compound additive, methyl red (MR), on the structure and physicomechanical properties of copper coatings deposited on oxidized aluminum. To achieve this goal, the following tasks were solved: the microstructure and adhesive properties of the copper coating formed on oxidized aluminum alloys were determined, and the physical and mechanical properties of the copper coating (microhardness, open porosity, adhesion) were connected with the action of an azo dye in the copper plating electrolyte. Samples of aluminum alloys AD1M and AMg6BM were subjected to anodic treatment under the same conditions in two oxidation electrolytes of various compositions. The process of applying a copper coating to samples of oxidized aluminum alloys was carried out using a standard copper plating electrolyte. The comparison was carried out with a copper plating electrolyte of the same composition, in which an additive of azo dye, methyl red (MR). The use of this technology will not only increase the reliability and durability of machine parts and mechanisms, but also restore old ones, which is an important and relevant scientific and technical task.
Keywords: oxidation, aluminum alloys, copper coating, methyl red, scratch test, microhardness, open porosity, coating adhesion, metallographic analysis, energy dispersive analysis.
DOI: 10.30791/1028-978X-2021-6-40-59
Belov Denis — JSC Burevestnik (Nizhny Novgorod, 603950, Sormovskoe shosse, 1a), PhD (Chem), associate professor, scientific secretary, specialist in the field of physical chemistry. E-mail: denbel2013@yandex.ru.
Maximov Maxim — JSC Burevestnik (Nizhny Novgorod, 603950, Sormovskoe shosse, 1a), PhD (Chem), research engineer, specialist in the field of physical science. E-mail:
maxdass@yandex.ru.
Belyaev Sergey — Institute of Applied Physics of the Russian Academy of Sciences (Nizhny Novgorod, 603950, Ul’yanov st., 46), junior scientific researcher, specialist in the field of physical chemistry. E-mail: serg_belyaev@bk.ru.
Devyatkina Tatyana — Nizhny Novgorod State Technical University n.a. R.E. Alekseev (Nizhny Novgorod, 603950, Minin st., 24), PhD (Chem), associate professor, specialist in the field ofelectrochemicals and industrial galvanotechnics. E-mail: dticom14@gmail.com.
Gevorgyan Gor — JSC Burevestnik (Nizhny Novgorod, 603950, Sormovskoe shosse, 1a), research engineer, specialist in the field of physical science. E-mail: borecgor77777@gmail.com.
Reference citing
Belov D.V., Maximov M.V., Belyaev S.N., Devyatkina T.I., Gevorgyan G.A. Vliyanie azosoedineniya na strukturu i mekhanicheskie svojstva mednogo pokrytiya, elektroosazhdennogo na oksidirovannye splavy alyuminiya [Effect of azo compounds on structure and mechanical properties of copper coating electrodeposited on oxidized aluminum alloys]. Perspektivnye Materialy — Advanced Materials (in Russ), 2021, no. 6, pp. 40 – 59. DOI: 10.30791/1028-978X-2021-6-40-59
Kinetics of low-temperature
aluminothermic reduction
of iron tantalate
R. I. Gulyaeva, A. M. Klyushnikov, S. A. Petrova,
L. Yu. Udoeva
The kinetics of low-temperature (900 – 1180 °C) reduction of iron tantalate (98.2 wt % FeTa2O6, 1.8 wt % Ta2O5, particle size < 0.1 mm) by excess aluminum (particle size < 0.14 mm) at the molar ratio Al:FeTa2O6 = 6 was studied. According to differential scanning calorimetry and X-ray powder diffraction, reduction is almost completed at 1180 °C, the metal products are TaFeAl, TaAl3, and Ta17Al12. Based on the results of thermokinetic calculations (Ozawa – Flynn – Wall and nonlinear regression methods), the formal mechanism of the process is represented by the Bna → CnC model, which includes two consecutive steps controlled by autocatalytically activated reactions. Kinetic parameters of the steps are: 1) Е1 = 429 kJ·mol–1, A1 = 1015.3 s–1; 2) Е2 = 176 kJ·mol–1, A2= 103.9 s–1 (Ej is the activation energy, Aj is the preexponential factor). Prediction in the Bna → CnC model frames indicates the possibility of obtaining a reaction mixture containing ≥ 98 mol. % the final formal reduction product, with isothermal exposure in the temperature range of 1040 – 1120 °C during 1.5 – 5 minutes. The proposed model can be used to develop scientific foundations and substantiate technological modes for obtaining tantalum alloys from mineral and technogenic raw materials.
Keywords: iron tantalate, reduction, aluminothermy, thermodynamics, kinetics.
DOI: 10.30791/1028-978X-2021-6-60-72
Gulyaeva Roza — Institute of Metallurgy of the Ural branch of the Russian Academy of Sciences (Yekaterinburg, 620016, Amundsen str., 101), PhD (Chem), senior researcher, specialist in the field of physical chemistry of metallurgical processes. E-mail: gulroza@mail.ru.
Klyushnikov Alexander —Institute of Metallurgy of the Ural branch of the Russian Academy of Sciences (Yekaterinburg, 620016, Amundsen str., 101), PhD (Eng), senior researcher, specialist in the field of physical chemistry of metallurgical processes. E-mail: amk8@mail.ru.
Petrova Sofia — Institute of Metallurgy of the Ural branch of the Russian Academy of Sciences (Yekaterinburg, 620016, Amundsen str., 101), PhD (Phys-Math), senior researcher, specialist in the field of X-ray structural analysis. E-mail: danaus@mail.ru.
Udoeva Lyudmila — Institute of Metallurgy of the Ural branch of the Russian Academy of Sciences (Yekaterinburg, 620016, Amundsen str., 101), PhD (Eng), senior researcher, specialist in the field of physical chemistry of metallurgical processes. E-mail: lyuud@yandex.ru.
Reference citing
Gulyaeva R.I., Klyushnikov A.M., Petrova S.A., Udoeva L.Yu. Kinetika nizkotemperaturnogo alyuminotermicheskogo vosstanovleniya tantalata zheleza [Kinetics of low-temperature aluminothermic reduction of iron tantalite]. Perspektivnye Materialy — Advanced Materials (in Russ), 2021, no. 6, pp. 60 – 72. DOI: 10.30791/1028-978X-2021-6-60-72
Variation of high pressure torsion
processing modes for fabrication
of the Al – Nb hybrid system
G. R. Khalikova, G. F. Korznikova, K. S. Nazarov,
R. Kh. Khisamov, S. N. Sergeev,
R. U. Shayakhmetov, E. A. Korznikova, R. R. Mulyukov
A hybrid composite material fabricated from the Al – Nb system using severe plastic deformation by high-pressure torsion (HPT) up to 30 turns has been studied in the present work. To fabricate the composite, deformation of a three-layer Al – Nb – Al package was carried out at room temperature on Bridgman anvils with grooves under a pressure of 5 GPa at N = 10, 25 and 30 revolutions, at a strain rate of ω = 1 and 2 rpm. Initial disc diameters from pure metals and HPT conditions were experimentally optimized to obtain monolithic and defect-free composite samples. The most intensive fragmentation and stirring of niobium in the aluminium matrix was observed if diameter of aluminium discs was 10 mm and deformation conditions N = 25 and 30 revolutions and
ω = 2 rpm were applied. Three microstructural zones were observed after HPT under optimal conditions: the central zone with wide curved layers of niobium in aluminium, the mid-radius zone with finely dispersed layered structure, and periphery with a uniform distribution of niobium in the aluminium matrix. It was shown that HPT led to formation of the intermetallic Al3Nb phase. The microhardness measured along the diameter of the obtained composite materials changed nonmonotonically depending on the produced structure (microstructural zone).
Keywords:metal matrix composite, aluminum, niobium, high pressure torsion, nanostructure.
DOI: 10.30791/1028-978X-2021-6-73-82
Khalikova Gulnara — Institute for Metals Superplasticity Problems, Russian Academy of Sciences (Ufa, 450001, 39 Khalturin St.), PhD (Eng), senior research associate; Ufa State Petroleum Technological University (Ufa, 450062, 1 Kosmonavtov St.), associate professor, material science specialist. E-mail: gulnara.r.khalikova@gmail.com.
Korznikova Galia — Institute for Metals Superplasticity Problems, Russian Academy of Sciences (Ufa, 450001, 39 Khalturin St.), Dr Sci (Eng), leading researcher, specialist in material science. E-mail: gfkorznikova@gmail.com.
Nazarov Konstantin —Institute for Metals Superplasticity Problems, Russian Academy of Sciences (Ufa, 450001, 39 Khalturin St.), junior researcher, specialist in condensed matter physics. E-mail: ksnazarov@rambler.ru.
Khisamov Rinat — Institute for Metals Superplasticity Problems, Russian Academy of Sciences (Ufa, 450001, 39 Khalturin St.), junior researcher, specialist in condensed matter physics. E-mail: r.khisamov@mail.ru.
Sergeev Semyon — Institute for Metals Superplasticity Problems, Russian Academy of Sciences (Ufa, 450001, 39 Khalturin St.), junior researcher, specialist in microscopic examination of metals. E-mail: nikocem17@gmail.com.
Shayakhmetov Ruslan — Institute for Metals Superplasticity Problems, Russian Academy of Sciences (Ufa, 450001, 39 Khalturin St.), junior researcher, specialist in condensed matter physics. E-mail: ruslanshay@mail.ru.com.
Korznikova Elena — Institute for Metals Superplasticity Problems, Russian Academy of Sciences (Ufa, 450001, 39 Khalturin St.), Dr Sci (Phys-Math), leading researcher; Ufa State Petroleum Technological University (Ufa, 450062, 1 Kosmonavtov St.), professor, specialist in material science and mathematical modeling. E-mail: elena.a.korznikova@gmail.com.
Mulukov Radik — Institute for Metals Superplasticity Problems, Russian Academy of Sciences (Ufa, 450001, 39 Khalturin St.), Dr Sci (Phys-Math), director; Ufa State Petroleum Technological University (Ufa, 450062, 1 Kosmonavtov St.), professor, head of the department, specialist in mechanics and physics of nanomaterials. E-mail: radik@imsp.ru.
Reference citing
Khalikova G.R., Korznikova G.F., Nazarov K.S., Khisamov R.Kh., Sergeev S.N.,
Shayakhmetov R.U., Korznikova E.A., Mulyukov R.R. Podbor rezhimov intensivnoj plasticheskoj deformacii krucheniem pod vysokim davleniem dlya izgotovleniya kompozita gibridnoj sistemy Al – Nb [Variation of high pressure torsion processing modes for fabrication of the Al – Nb hybrid system]. Perspektivnye Materialy — Advanced Materials (in Russ), 2021, no. 6, pp. 73 – 82. DOI: 10.30791/1028-978X-2021-6-73-82
Neutron diffraction study of the kinetics
of low-temperature martensite
decomposition in medium-carbon steel
A. A. Alekseev, S. S. Goncharov
It is found that the low-temperature decomposition of martensite in quenched medium-carbon steel occurs in two stages. In the first stage, the rate of decomposition is higher than that in the subsequent stage. Application of the neutron diffraction method allows the identification of two stages of transformation in the first stage of martensite decomposition. It is shown that the first stage is associated predominantly with carbon segregation at dislocations, and the second, with the outdiffusion of carbon from the supersaturated solid solution with the formation of dispersed particles of metastable carbides. It is shown that the change in the concentration of carbon and, accordingly, the degree of tetragonal lattice of martensite at aging and low tempering occurs to a certain limit, independent of the cooling rate during quenching and tempering temperature. This is due to the establishment of a relative equilibrium between a supersaturated solid solution and fine particles of metastable iron carbide. It is found that the determining process, which leads to a change in the microhardness the low-temperature decomposition, is the out diffusion of carbon from the supersaturated solid solution.
Keywords: neutron diffraction, cooling rate, low-temperature martensite decomposition, aging, microhardness, carbon content.
DOI: 10.30791/1028-978X-2021-6-83-87
Alekseev Anton — Tula State University (Tula, 300012, Russia, pr. Lenina 92), post graduate student, specialist in the field of physics of processes and structural transformations in metals and alloys. E-mail: ant.suv-tula@mail.ru.
Goncharov Sergey — Tula State University (Tula, 300012, Russia, pr. Lenina 92), PhD (Eng), associate professor, specialist in the field of X-ray methods of materials research. E-mail: gss160153@yandex.ru.
Reference citing
Alekseev A.A., Goncharov S.S. Nejtronograficheskoe issledovanie kinetiki nizkotemperaturnogo raspada martensita sredneuglerodistoj stali [Neutron diffraction study of the kinetics of low-temperature martensite decomposition in medium-carbon steel]. Perspektivnye Materialy — Advanced Materials (in Russ), 2021, no. 6, pp. 83 – 87. DOI: 10.30791/1028-978X-2021-6-83-87
