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Corrosion Activity of Low-Carbon Steel Under the Action of Multi-Component Anti-Icing Reagent Mater. Sci. (IF 0.9) Pub Date : 2024-03-16 I. V. Kravchenko, O. V. Suvorin, H. O. Tatarchenko
Corrosion activity of a multi-component solution, namely, distiller liquid previously clarified and strengthened to 20 wt% by CaCl2 including the addition of corrosion inhibitors at –5°C to low-carbon 08kp steel is studied by the gravimetric method. The holding time of the specimens is 500–650 h. In distiller liquid corrosion rate is 0.111 g/(m2×h), corrosion depth is 0.12 mm/year, steel resistance
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Evaluation of Hydrogen Embrittlement Risk of Long-Term Operated Gas Pipelines Made of 10G2BT Steel Mater. Sci. (IF 0.9) Pub Date : 2024-03-16 A. M. Syrotyuk, R. L. Leshchak, M. V. Hrynenko, N. T. Hembara
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Surface Modification of Titanium by Oxidation Followed by Electrospark Alloying with a Graphite Electrode Mater. Sci. (IF 0.9) Pub Date : 2024-03-16 I. M. Pohrelyuk, M. M. Student, Kh.R. Zadorozhna, V. S. Trush, T. M. Kravchyshyn
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Strength of the Welded Joint of the Connecting Pipe and the Collector of the Boiler Primary Steam Superheater Mater. Sci. (IF 0.9) Pub Date : 2024-03-16
The strength of the welded joint of the connecting pipe and the collector made of 12Kh1MF steel is investigated within the framework of the model of elastic solid, taking into account their real geometry and the dependence of the material characteristics on temperature. Zones of the maximum operating stresses in the joint for different types of welding are identified. Design and technological solutions
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Use of Polyols of Petroleum Chemical Processing as Raw Materials for the Synthesis of Polyurethanes Mater. Sci. (IF 0.9) Pub Date : 2024-03-16 V. YA. Suprun, V. I. Marukha, V. P. Sylovanyuk
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Evaluation of the Endurance Limit of Cooled Blades of Gas-Turbine Engines Made of Heat-Resistant Nickel Alloy Mater. Sci. (IF 0.9) Pub Date : 2024-03-16 Yu. H. Kvasnytska, L. M. Ivaskevych, A. I. Balitskii, H. P. Mialnitsa, K. H. Kvasnytska
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The Influence of Polyvinylpyrrolidone as a Polymer Modifier on the Morphology and Properties of Copolyamide Mater. Sci. (IF 0.9) Pub Date : 2024-03-16 T. V. Humenetskyi, A. S. Masiuk, V. Ye. Levitskyi, L. M. Bilyi
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Hydrogen Generation by Hydrolysis of Magnesium Hydride Composites with TiFe/Ti3Fe3O Additives and Graphite Mater. Sci. (IF 0.9) Pub Date : 2024-03-16 O. P. Kononiuk, I. Yu. Zavaliy, V. V. Berezovets, A. R. Kytsia, I. V. Borukh
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Structure and Tribotechnical Properties of Deposited Composite Layers Based on PG 10N-01 Alloy Containing AL2O3 Mater. Sci. (IF 0.9) Pub Date : 2024-03-16 S. A. Luzan, V. A. Bantkovskiy
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Peculiarities of Preparation and Properties of Cemented Carbide WC + 20 Mass% Ni with Ultra-Coarse-Grained Microstructure Mater. Sci. (IF 0.9) Pub Date : 2024-03-16 O. O. Matviichuk, I. V. Andreiev, N. V. Litoshenko, M. O. Tsysar, V. A. Vynar, I. O. Hnatenko, S. A. Davydenko, I. V. Savchuk
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Mechanism of Development of Damage of Low-Strength Pipe Steel Due to Hydrogenation Under Operation Mater. Sci. (IF 0.9) Pub Date : 2024-03-16 O. I. Zvirko, M. I. Hredil, O. T. Tsyrulnyk, O. Z. Student, H. M. Nykyforchyn
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The Structural-Mechanical State of 12Kh1MF Steel of TPP Pipeline Bend after Long-Term Operation Mater. Sci. (IF 0.9) Pub Date : 2024-03-16 I. O. Tsybailo, H. V. Krechkovska
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The Influence of the Initial Clearance on the Fracture of Bolted Joints of Composite Materials Mater. Sci. (IF 0.9) Pub Date : 2024-03-16
The results of experiments studying the dependence of contact angles for different initial clearances in a bolted joint on loading are presented. Considering the change of the interacting surface area of the composite plates with a pin, the bearing capacity of the hole is determined. The modified correlation algorithm for digital image processing is used to obtain the experimental results.
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The Influence of Corrosion Dissolution of the Metal Surface Layer on the Stress Concentration Factor in Butt-Welded Joins Mater. Sci. (IF 0.9) Pub Date : 2024-03-11 A. V. Moltasov, A. V. Klymenko
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Aluminum Alloy Corrosion Inhibition with a Composition of Guar Gum and Potassium Sorbate Mater. Sci. (IF 0.9) Pub Date : 2024-03-11
High efficiency of corrosion inhibition of aluminum alloy in a 0.1% NaCl solution with a composition of guar gum and potassium sorbate was established. The formation of an organic adsorption film was found on the surface of the metal samples. The degree of metal protection against corrosion by this inhibitory composition was more than 90%. The results of the research can be used for the development
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Determination of the Surface Displacement Field under Dynamic Loads by the Method of Phase-Shifting Correlation Speckle Pattern Interferometry Mater. Sci. (IF 0.9) Pub Date : 2024-03-11 L. I. Muravsky
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Specific Features of Stresses Relaxation and Recrystallization of Steel under Laser Heating Mater. Sci. (IF 0.9) Pub Date : 2024-03-08 S. I. Gubenko
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Mechanisms of Pitting Corrosion of Austenitic Steels of Heat Exchangers in Circulating Waters and its Prediction Mater. Sci. (IF 0.9) Pub Date : 2024-03-08 O. E. Narivs’kyi, S. O. Subbotin, T. V. Pulina, S. D. Leoshchenko, M. S. Khoma, N. B. Ratska
Mathematical models of the dependence of the critical pitting temperature (CPT) of AISI 304, AISI 321, 12Kh18N10T and 08Kh18N10 steels on their chemical composition, structural heterogeneity, as well as pH and chloride concentration of circulating water were developed. Models were based on quadratic regressions with first order partial derivatives and on polynomials with a reduced number of signs.
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Estimation of Characteristics of Nanocrystalline Layer Using the Surface Acoustic Waves Mater. Sci. (IF 0.9) Pub Date : 2024-02-08 V. R. Skalskyi, O. M. Mokryi, O. I. Zvirko, V. I. Kyryliv, I. M. Romanyshyn, O. V. Maksymiv
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Thermoelastic State of a Heterogeneous Orthotropic Cylindrical Shell with an Open Profile under Transient Heating Mater. Sci. (IF 0.9) Pub Date : 2024-02-08 R. M. Kushnir, U. V. Zhydyk, V. M. Flyachok
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Corrosion Resistance of Pseudoalloy Copper-Iron Coatings Obtained by Electric Arc Spraying Mater. Sci. (IF 0.9) Pub Date : 2024-02-07 Yu. S. Borisov, N. V. Vigilianska, C. V. Iantsevitch, I. A. Demianov
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Assessing of the Life Time of a Shaft with a Crack in Hydrogen Mater. Sci. (IF 0.9) Pub Date : 2024-02-07
A theoretical-experimental approach for predicting the kinetics of fatigue crack growth and determining the life time of the responsible elements of structures in hydrogen is proposed. Based on the created calculation model of fatigue crack growth, experimentally constructed kinetic diagrams of fatigue failure of 35KhN3MFA steel, the residual life of the rotor shaft of the turbo generator, weakened
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Quantitative Model for the Prediction of the Corrosion Rate of Cold-Rolled 316L STEEL Mater. Sci. (IF 0.9) Pub Date : 2024-02-07 A. Dittes, T. Mehner, S. Friedrich, B. Awiszus, T. Lampke
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Inhibition of Carbon Steel Corrosion by Polyvinylpyrrolidone in Chloride-Acetate Solution and in Model Stratal Water Mater. Sci. (IF 0.9) Pub Date : 2024-02-06 Z. V. Slobodyan, L. A. Mahlatiuk, R. B. Kupovych, N. Yo. Sobodosh
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Anticorrosion Properties of Composite Inhibiting Pigment Based on Natural Calcium Silicate and Zinc Monophosphate Mater. Sci. (IF 0.9) Pub Date : 2024-02-06 O. P. Khlopyk, I. M. Zin, B. M. Datsko, L. M. Bilyi, Z. A. Duriagina, S. A. Korniy
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The Influence of Different Factors on Physicomechanical Properties of High Entropy Alloys with fcc Lattice Mater. Sci. (IF 0.9) Pub Date : 2024-02-05
The influence of electron concentration, mixing enthalpy, and dimensional mismatch on the lattice parameter, elastic modulus, and normalized hardness of fcc high-entropy alloys (HEA) is studied. The lattice parameter, which determines the elastic modulus of HEA, is influenced by both the electron concentration and the mixing enthalpy. A rectilinear dependence of the normalized hardness of these alloys
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The Influence of the Electrolyte Composition for Hard Anodizing of Aluminum on Corrosion Resistance of Synthesized Coatings Mater. Sci. (IF 0.9) Pub Date : 2024-02-05 H. H. Veselivska, V. M. Hvozdetskyi, M. M. Student, Kh. R. Zadorozhna, Yu. V. Dzioba
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3D Modeling of the Structure of Deposited Materials Based on Fe–Ti–Mo–B–C System Mater. Sci. (IF 0.9) Pub Date : 2024-02-05 O. O. Ivanov, P. M. Prysiazhniuk, L. G. Bodrova, G. M. Kramar, S. Yu. Marynenko, I. V. Koval, O. Ya. Guryk
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Mechanical Properties of Steel for Floating Offshore Platforms under Static and Cyclic Loading Mater. Sci. (IF 0.9) Pub Date : 2024-02-05
The results of a set of experimental tests of Q420 steel samples with quality level Q420B are presented. The chemical composition of steel and its mechanical characteristics, indicated in the certificate for products and determined experimentally, were compared with the standard values in the certificate for products. The results of steel fatigue and corrosion-fatigue tests were analyzed. The S–N curves
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The Influence of Impac-Oscilation Loading on the Hardness of Surface Layers of D16ChATW Aluminum Alloy Mater. Sci. (IF 0.9) Pub Date : 2024-02-05 M. G. Chausov, P. O. Maruschak, A. P. Pylypenko
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The Influence of Operating Conditions on the Structure and Mechanical Properties of Die 4Kh4N5M4F2 Steel Mater. Sci. (IF 0.9) Pub Date : 2024-02-05 K. O. Gogaev, O. M. Sydorchuk, O. M. Myslyvchenko, Y. I. Yevych, Ye. Hongguang
The structure and mechanical properties of 4Kh4N5M4F2 steel in thermodeformed and cast states after quenching and tempering, and additional heating are investigated. After additional heating of hardened and tempered 4Kh4N5M4F2 steel, which models the operating conditions of the equipment (operating temperature during quasi-stationary exposure), at 630–650°C steel softens, which is associated with the
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Corrosion-Mechanical Properties and Susceptibility to Hydrogenetaion of Pipe Steel in the Presence of Carbon Dioxide Gas and Hydrogen Sulphide in Environment Mater. Sci. (IF 0.9) Pub Date : 2024-02-05 M. S. Khoma, V. I. Pokhmurskii, M. R. Chuchman, Kh. B. Vasyliv, V. R. Ivashkiv, N. B. Ratska
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Preparing Permanent Joints of Titanium Alloys with Steel (A Review) Mater. Sci. (IF 0.9) Pub Date : 2024-02-05 V. M. Korzhyk, V. Yu. Khaskin, V. V. Kvasnytskyi, O. V. Ganushchak, I. D. Hos, S. I. Peleshenko, O. I. Demianov, O. V. Konoreva, N. M. Fialko
Welding processes of titanium alloys with steels are analyzed. The following research directions are distinguished: the use of prefabricated bimetallic transition elements (welded by traditional methods); minimization of energy and heat expenditure in the weld area of metals; the use of methods of welding metallurgical engineering. The advances in welding technology have led to innovative solutions
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Synthesis and Hydrogen Sorption Properties of MgH2 Composites with TiFe and Ti3Fe3O Additives Mater. Sci. (IF 0.9) Pub Date : 2024-02-05 V. V. Berezovets, O. P. Kononiuk, R. V. Denys, I. Yu. Zavalii
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Wear Resistance of Glow-Discharge Nitride 08Kh18N10 Steel Mater. Sci. (IF 0.9) Pub Date : 2024-02-05 M. S. Stechyshyn, M. Ye. Skyba, N. M. Stechyshyna, N. S. Mashovets, N. K. Medvedchuk
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Influence of Heating Modes on Heat-Resistance of Zr and Zr–1% Nb Alloy Mater. Sci. (IF 0.9) Pub Date : 2024-02-05
Differences in the oxidation kinetics of zirconium and Zr–1% Nb alloy during heating in air depending on the heating rate, temperature and exposure time are revealed. The increase in the heating rate from 2.5 to 6 and 7.5°C/min reduces the activation energy of the Zr oxidation process in the temperature range of 20–1000°C from 70.2 to 67 and 52.7 kJ/mol, respectively. For the Zr–1% Nb zirconium alloy
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Corrosion Behavior of Electrolytic CoRe Alloys Under Exposure to an Alkaline Medium Mater. Sci. (IF 0.9) Pub Date : 2023-12-29 Yu. S. Yapontseva, T. V. Maltseva, V. S. Kublanovsky, O. A. Vyshnevskyi
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Acoustic-Emission Method for Determining Residual Life of Power Equipment with Creep Cracks Under Static Load Mater. Sci. (IF 0.9) Pub Date : 2023-12-29 O. Ye. Andreikiv, I. Ya. Dolinska, N. S. Zviahin, M. O. Liubchak
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A Finite Element Comparison Between Two Sizes of NiTi Commercial Staples Used in Scaphoid Fracture Fixation Mater. Sci. (IF 0.9) Pub Date : 2023-12-29
Most carpal bone fractures occur in the scaphoid. The most suitable size of NiTi shape memory alloy (nitinol) staples to heal scaphoid fractures was found by comparing two commercially available compression staples (DynaClip™ Bone Fixation System, 10×10 and 14×14 mm). The scaphoid bone was selected for simulating a model in SolidWorks software. To accurately investigate the effect of staple size on
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Electrochemical Properties of Plasma-Electrolytically Oxidized Aluminum Coatings Sprayed on MA5 Magnesium Alloy Mater. Sci. (IF 0.9) Pub Date : 2023-12-28
The aluminum-based coating was sprayed onto a substrate made of MA5 magnesium alloy by detonation and thermal vacuum methods. Potentiodynamic polarization studies were carried out to evaluate corrosion resistance of the modified surfaces. Thermal vacuum coating is non-porous, but thin (approx. 50 μm). The plasma-electrolytic oxidation (PEO) layer of the aluminum coating almost does not interact with
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Effectiveness of Gas Nitriding of Two-Phase Titanium Alloys Mater. Sci. (IF 0.9) Pub Date : 2023-12-28 I. M. Pohrelyuk, S. M. Lavrys, V. S. Trush, A. G. Lukyanenko, T. M. Kravchyshyn
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The Influence of Surface-Active Elements on Grains Boundary Structure and Resistance Against Intergranular Corrosion of Austenitic Cr–Ni and Cr–Ni–Mo Steels Mater. Sci. (IF 0.9) Pub Date : 2023-12-27 T. O. Dergach, G. D. Sukhomlin, L. M. Deyneko, Z.-H. Jiang, J. Tian
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Corrosion Resistance of Dysprosium Titanate Powders and Pellets in the Model Environment of the WWER-1000 Coolant Mater. Sci. (IF 0.9) Pub Date : 2023-12-27
The results of autoclave tests of corrosion resistance of dysprosium titanate powders and pellets in the model environment and the parameters of the primary coolant of the WWER-1000 reactor are presented. During exposure in autoclave for up to 500 h, powders are characterized by the decrease in weight, which does not exceed 0.5%, and weight increase depends on powder density. Pellets with the highest
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Use of Corrosion Control Device to Control Reagent Water Treatment of Heating Networks Mater. Sci. (IF 0.9) Pub Date : 2023-12-27 G. S. Vasyliev, Yu. S. Herasymenko
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Local Frictional Wear of an Elastic Half-Space with a Regular System of Protrusions Mater. Sci. (IF 0.9) Pub Date : 2023-12-27 O. P. Kozachok
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Inhibition of Steel Microbial Corrosion by Quaternary Salts of Imidazoquinolinium Mater. Sci. (IF 0.9) Pub Date : 2023-12-27 N. R. Demchenko, S. V. Trachenko, O. S. Bondar
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Characteristics of the Quality of Deposited Parts Treatment Mater. Sci. (IF 0.9) Pub Date : 2023-12-27 V. V. Kolomiyets, R. V. Antoshchenko, V. M. Lykyanenko, R. V. Ridnyi, S. O. Kharchenko, I. A. Fabrychnikova, S. A. Bogdanovych, O. A. Svirhun
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The Influence of the Deformation and Heat Treatment on the Structure and Heat-Resistance of Ti–Al–Zr–Si Alloys Mater. Sci. (IF 0.9) Pub Date : 2023-12-27 O. M. Shevchenko, L. D. Kulak, M. M. Kuzmenko, O. Yu. Koval, A. V. Kotko, I. F. Kravchenko, S. O. Firstov
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Physicomechanical Properties of Coatings Based on Max Ti2AlC and (Ti, Nb)2AlC Phases at 20°C and 500°C Mater. Sci. (IF 0.9) Pub Date : 2023-12-27
Physicomechanical characteristics of 15Kh16k5N2MVFAB-Sh steel (0.15C–16Cr–5Co–2Ni–0.7V–0.6Mo–0.3Nb–0.4N): wear resistance at 20°C and 500°C and resistance to fretting fatigue at 20°C without and with coatings obtained by the method of vacuum-arc deposition using targets based on the MAX phases of \({\mathrm{Ti}}_{2}{\mathrm{AlC}}\) and \({{\mathrm{(}{\mathrm{Ti}}}_{1-x}{\mathrm{Nb}}_{x})}_{2}{\mathrm{AlC}}\)
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Corrosion Resistance of Eutectic Al–Mg–Ge Alloys Mater. Sci. (IF 0.9) Pub Date : 2023-12-27 L. G. Shcherbakova, N. P. Korzhova, T. M. Legka, A. V. Sameluk, I. V. Voskoboinik, V. Kh. Melnyk
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Corrosion Inhibition of Aluminum Alloy by Eco-Friendly Composition Based on Gum Arabic and Zinc Acetate Mater. Sci. (IF 0.9) Pub Date : 2023-12-27 M.-O. Danyliak, S. A. Korniy
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Prediction of Fill Factor and Charge Density of Self-Shielding Flux-Cored Wire with Variable Composition Mater. Sci. (IF 0.9) Pub Date : 2023-12-23 B. O. Trembach, D. V. Hlushkova, V. M. Hvozdetskyi, V. A. Vynar, V. I. Zakiev, O. V. Kabatskyi, D. V. Savenok, O. Yu. Zakavorotnyi
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Self-Lubricating Glass Composite Nanocoatings Mater. Sci. (IF 0.9) Pub Date : 2023-12-22 V. P. Babak, N. M. Fialko, V. V. Shchepetov, S. D. Kharchenko, Ya. M. Hladkyi, S. S. Bys
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Specific Features of Change of the Plate Shape During the Formation of Gradient Alloys of Palladium With Hydrogen Mater. Sci. (IF 0.9) Pub Date : 2023-08-30 O. M. Lyubimenko
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SH-Wave Diffraction from a Thin Interface Defect of Finite Width in the Joint of an Elastic Layer with a Half-Space Mater. Sci. (IF 0.9) Pub Date : 2023-08-29 D. B. Kuryliak, Z. T. Nazarchuk, M. V. Voytko, Ya. P. Kulynych
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Modeling of Pitting of Heat Exchangers Made of 18/10 Type Steel in Circulating Waters Mater. Sci. (IF 0.9) Pub Date : 2023-08-29 O. E. Narivskyi, S. O. Subbotin, T. V. Pulina, S. D. Leoshchenko, M. S. Khoma, N. B. Ratska
Mathematical models have been developed which describe the dependences of critical pitting temperatures of 12Kh18N10T, 08Kh18N10, AISI304 and AISI321 steels in model circulating waters with pH 4–8 and chloride concentration 350–600 mg/L on chemical composition and structure. They are based on multidimensional first-order regressions and on neural networks of direct signal propagation. The analysis
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Specific Features of Corrosion-Fatigue Fracture of Steel and Hybrid Pump Rods Mater. Sci. (IF 0.9) Pub Date : 2023-08-29 B. V. Kopei, H. V. Krechkovska, I. B. Kopei, B. M. Bakun
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Cracking of the Concrete Matrix Due to the Pressure of Corrosion Products in Reinforced Concrete Mater. Sci. (IF 0.9) Pub Date : 2023-08-29 V. A. Kostin, D. V. Laukhin, L. I. Nyrkova
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Structure and Electrochemical Charge-Discharge Properties of Ni–Co–C Nanocomposites Mater. Sci. (IF 0.9) Pub Date : 2023-08-29 Kh. I. Vlad, Yu. I. Verbovytskyy, V. M. Bogatyrov, I. Yu. Zavaliy
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Ceramics Based on Reaction-Bonded Boron Carbide for Heat Protection Coatings of Space Aircraft Mater. Sci. (IF 0.9) Pub Date : 2023-08-26 I. O. Husarova, Ye.V. Solodkyi, T. A. Manko, P. I. Loboda