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Structure and Properties of Titanium/Aluminum–Magnesium Alloy Explosive Welds
IF 0.4
Russian Metallurgy (Metally) Pub Date : 2025-02-10 DOI: 10.1134/S0036029524702057
M. P. Korolev, E. V. Kuz’min, V. I. Lysak, S. V. Kuz’min, V. O. Kharlamov
{"title":"Structure and Properties of Titanium/Aluminum–Magnesium Alloy Explosive Welds","authors":"M. P. Korolev,&nbsp;E. V. Kuz’min,&nbsp;V. I. Lysak,&nbsp;S. V. Kuz’min,&nbsp;V. O. Kharlamov","doi":"10.1134/S0036029524702057","DOIUrl":"10.1134/S0036029524702057","url":null,"abstract":"<p>The structure and properties of titanium/aluminum–magnesium alloy explosive welds and the influence of the magnesium content on the weld strength are studied. The welded joints of VT1-0 titanium with AMg5 and AMg6 alloys are found to fail during both welding and the application of an external load along the near-boundary zone of an aluminum alloy, and the fracture is brittle. This fracture is shown to be due to the formation of a thin aluminum alloy interlayer with a refined structure consisting of equiaxial grains less than 1 μm in size at the joint boundary, and the boundary of this structure with the base metal is a stress concentrator.</p>","PeriodicalId":769,"journal":{"name":"Russian Metallurgy (Metally)","volume":"2024 5","pages":"1084 - 1090"},"PeriodicalIF":0.4,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143379820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Stress–Strain State of a High-Speed Steel Surface Layer at Plasma Surfacing
IF 0.4
Russian Metallurgy (Metally) Pub Date : 2025-02-10 DOI: 10.1134/S003602952470201X
S. A. Nevskii, L. P. Bashchenko, V. E. Gromov, A. D. Filyakov
{"title":"Stress–Strain State of a High-Speed Steel Surface Layer at Plasma Surfacing","authors":"S. A. Nevskii,&nbsp;L. P. Bashchenko,&nbsp;V. E. Gromov,&nbsp;A. D. Filyakov","doi":"10.1134/S003602952470201X","DOIUrl":"10.1134/S003602952470201X","url":null,"abstract":"<p>Using the finite-element method, the problem of thermoelastic stress distribution in a high-speed R2M9 steel coating on a 30KhGSA steel substrate has been solved. Stress distributions in the coating versus distance from the surface have been obtained. It has been found that normal component σ<sub><i>yy</i></sub> of the stress tensor varies nonmonotonically along the rounding radius and monotonically along the central axis. It has also been shown that the von Mises stress intensity rises toward the coating boundary, as a result of which a minimum appears in the dependence of the microhardness on distance to the coating boundary. Stability analysis of carbide phase inclusions subjected to thermoelastic stresses has been carried out. It has turned out that inclusions 10 μm or greater in size are unstable if their thickness is about 1 μm or less.</p>","PeriodicalId":769,"journal":{"name":"Russian Metallurgy (Metally)","volume":"2024 5","pages":"1056 - 1063"},"PeriodicalIF":0.4,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143379822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of Deformation on Cleavage Crack Initiation in the Heat-Affected Zone of Microalloyed Pipeline Steels
IF 0.4
Russian Metallurgy (Metally) Pub Date : 2025-02-10 DOI: 10.1134/S0036029524702252
M. M. Kantor, V. V. Sud’in, V. A. Bozhenov, S. V. Zharkov, P. P. Stepanov, L. I. Efron
{"title":"Effect of Deformation on Cleavage Crack Initiation in the Heat-Affected Zone of Microalloyed Pipeline Steels","authors":"M. M. Kantor,&nbsp;V. V. Sud’in,&nbsp;V. A. Bozhenov,&nbsp;S. V. Zharkov,&nbsp;P. P. Stepanov,&nbsp;L. I. Efron","doi":"10.1134/S0036029524702252","DOIUrl":"10.1134/S0036029524702252","url":null,"abstract":"<p><b>Abstract</b>—Based on the results of multiple impact bending and static tension tests obtained using a unique technique, we determine the possible causes of the scatter of impact toughness values and their bimodal distribution for low-carbon microalloyed pipeline steel with a simulated microstructure of the heat-affected zone of a welded joint. The influence of the second phases, namely, complex nonmetallic inclusions based on titanium–niobium nitride and containing aluminum oxide and calcium sulfide, is shown.</p>","PeriodicalId":769,"journal":{"name":"Russian Metallurgy (Metally)","volume":"2024 5","pages":"1221 - 1227"},"PeriodicalIF":0.4,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143379852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Morphology and Properties of the Powder Prepared by the Electroerosive Dispersion of Wastes from the Tungstenless TN20 Hard Alloy in Water
IF 0.4
Russian Metallurgy (Metally) Pub Date : 2025-02-10 DOI: 10.1134/S0036029524702288
E. V. Ageeva, E. V. Ageev
{"title":"Morphology and Properties of the Powder Prepared by the Electroerosive Dispersion of Wastes from the Tungstenless TN20 Hard Alloy in Water","authors":"E. V. Ageeva,&nbsp;E. V. Ageev","doi":"10.1134/S0036029524702288","DOIUrl":"10.1134/S0036029524702288","url":null,"abstract":"<p><b>Abstract</b>—A powder consisting of mainly spherical particles with an average size of 15.3 μm is prepared by the electrodispersive dispersion of wastes from the tungstenless TN20 hard alloy in water. Elliptic particles and agglomerates are also observed in the powder. The phase composition is presented by titanium oxide Тi<sub>2</sub>О<sub>3</sub> (3%), titanium carbide TiС (78%), and intermetallic compound ТiNi<sub>3</sub> (19%). For the chosen parameters of the process, the flow rate of the powder is low because of its high dispersive capacity.</p>","PeriodicalId":769,"journal":{"name":"Russian Metallurgy (Metally)","volume":"2024 5","pages":"1240 - 1243"},"PeriodicalIF":0.4,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143379853","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Change in the Structural-Phase State of a Hypereutectoid Steel Rail Head during Operation
IF 0.4
Russian Metallurgy (Metally) Pub Date : 2025-02-10 DOI: 10.1134/S0036029524702112
N. A. Popova, V. E. Gromov, Yu. F. Ivanov, M. A. Porfir’ev, E. L. Nikonenko, G. I. Cherepanova, O. A. Peregudov, E. N. Zhirkova
{"title":"Change in the Structural-Phase State of a Hypereutectoid Steel Rail Head during Operation","authors":"N. A. Popova,&nbsp;V. E. Gromov,&nbsp;Yu. F. Ivanov,&nbsp;M. A. Porfir’ev,&nbsp;E. L. Nikonenko,&nbsp;G. I. Cherepanova,&nbsp;O. A. Peregudov,&nbsp;E. N. Zhirkova","doi":"10.1134/S0036029524702112","DOIUrl":"10.1134/S0036029524702112","url":null,"abstract":"<p>A quantitative analysis of the phase composition and substructure of a rail head made of E–0.9C–Cr–V–Fe hypereutectoid steel at a distance of 0–10 mm from the running surface is carried out by transmission electron microscopy. As the running surface is approached, a fragmented structure is found to be improved and to transform from plastic to elastoplastic; a subgrain substructure, the local areas of which are in an elastic-stressed state, forms; and cementite particles are almost completely destroyed.</p>","PeriodicalId":769,"journal":{"name":"Russian Metallurgy (Metally)","volume":"2024 5","pages":"1124 - 1131"},"PeriodicalIF":0.4,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143379784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of Concentration–Time Hydrogenation Annealing Conditions on the Hydrogen Saturation of a VT23 Titanium Alloy
IF 0.4
Russian Metallurgy (Metally) Pub Date : 2025-02-10 DOI: 10.1134/S0036029524702215
S. V. Skvortsova, A. V. Shalin, O. N. Gvozdeva, A. S. Stepushin, A. S. Zhurbenko
{"title":"Effect of Concentration–Time Hydrogenation Annealing Conditions on the Hydrogen Saturation of a VT23 Titanium Alloy","authors":"S. V. Skvortsova,&nbsp;A. V. Shalin,&nbsp;O. N. Gvozdeva,&nbsp;A. S. Stepushin,&nbsp;A. S. Zhurbenko","doi":"10.1134/S0036029524702215","DOIUrl":"10.1134/S0036029524702215","url":null,"abstract":"<p>The kinetics of bulk and unidirectional surface hydrogen absorption by a two-phase α + β VT23 titanium alloy (Ti–Al–Mo–V–Fe–Cr) at a temperature of 800°C in the concentration range 0.2–0.8 wt % is studied. Structures from three-phase α + α\" + β to single-phase β are found to form in the sample volume when the introduced hydrogen concentration is varied during bulk hydrogenation annealing. The hydrogen penetration depth and, hence, the degree of the α → β transformation are shown to be controlled by changing the hydrogenation conditions and using barrier coatings; as a result, a unidirectional gradient structure, which changes from α\" + β on the side of hydrogen introduction to α + β on the opposite side, is formed. The absorption of 0.6 wt % hydrogen during unidirectional surface hydrogenation is found to proceed 20 times slower than that during bulk hydrogenation. During unidirectional surface hydrogenating, the hydrogen content in the near-surface layers is found to be 0.2 wt % higher than the introduced hydrogen concentration calculated per sample volume.</p>","PeriodicalId":769,"journal":{"name":"Russian Metallurgy (Metally)","volume":"2024 5","pages":"1196 - 1201"},"PeriodicalIF":0.4,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143379787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of the Filler Content and the Crystallization Temperature on the Bending Strength and Structure of Fresh-Ice-Based Composite Materials
IF 0.4
Russian Metallurgy (Metally) Pub Date : 2025-02-10 DOI: 10.1134/S0036029524702240
A. S. Syromyatnikova, Ya. V. Tikhonravova, A. E. Mestnikov, D. I. Syromyatnikov, M. M. Sibiryakov
{"title":"Effect of the Filler Content and the Crystallization Temperature on the Bending Strength and Structure of Fresh-Ice-Based Composite Materials","authors":"A. S. Syromyatnikova,&nbsp;Ya. V. Tikhonravova,&nbsp;A. E. Mestnikov,&nbsp;D. I. Syromyatnikov,&nbsp;M. M. Sibiryakov","doi":"10.1134/S0036029524702240","DOIUrl":"10.1134/S0036029524702240","url":null,"abstract":"<p><b>Abstract</b>—The strength properties, thawing time, and structure of an ice-based composite material with up to 6 wt % basalt fibers 40 mm in length and 18 μm in diameter are studied under field conditions at an average daily temperature of –45°C. An increase in the filler content is shown to cause a linear increase in the bending strength and the thawing time of fibroice, which is explained by high filler–matrix adhesion and a decrease in the ice crystal size when the filler is introduced.</p>","PeriodicalId":769,"journal":{"name":"Russian Metallurgy (Metally)","volume":"2024 5","pages":"1215 - 1220"},"PeriodicalIF":0.4,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143379788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Anisotropy of the Functional Properties of Titanium Nickelide after Rolling
IF 0.4
Russian Metallurgy (Metally) Pub Date : 2025-02-10 DOI: 10.1134/S0036029524702008
A. A. Movchan, S. A. Kazarina, A. L. Sil’chenko
{"title":"Anisotropy of the Functional Properties of Titanium Nickelide after Rolling","authors":"A. A. Movchan,&nbsp;S. A. Kazarina,&nbsp;A. L. Sil’chenko","doi":"10.1134/S0036029524702008","DOIUrl":"10.1134/S0036029524702008","url":null,"abstract":"<p>The accumulation of phase-transformation-induced strain during the direct thermoelastic martensitic transformation and structural strain in the course of loading under martensitic inelasticity conditions in three directions with respect to the rolling direction (0°, 45°, 90°) has been experimentally studied for a thin titanium nickelide plate. For the case of uniaxial tension, approximation functions are proposed to accurately describe direct transformation and martensitic inelasticity diagrams with stable values of material parameters. For all directions in the plate plane, the direct transformation diagram is located higher than the martensitic inelasticity diagram along the strain axis.</p>","PeriodicalId":769,"journal":{"name":"Russian Metallurgy (Metally)","volume":"2024 5","pages":"1049 - 1055"},"PeriodicalIF":0.4,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143379814","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Structure and Deformation Behavior of a High-Entropy AlCoCrFeNiMn Alloy Ribbon
IF 0.4
Russian Metallurgy (Metally) Pub Date : 2025-02-10 DOI: 10.1134/S0036029524702021
V. E. Gromov, Yu. F. Ivanov, A. P. Semin, S. V. Panin, S. V. Borovskii, E. A. Petrikova, P. Zhang, A. A. Serebryakova
{"title":"Structure and Deformation Behavior of a High-Entropy AlCoCrFeNiMn Alloy Ribbon","authors":"V. E. Gromov,&nbsp;Yu. F. Ivanov,&nbsp;A. P. Semin,&nbsp;S. V. Panin,&nbsp;S. V. Borovskii,&nbsp;E. A. Petrikova,&nbsp;P. Zhang,&nbsp;A. A. Serebryakova","doi":"10.1134/S0036029524702021","DOIUrl":"10.1134/S0036029524702021","url":null,"abstract":"<p><b>Abstract</b>—The structure and properties of an 80-μm-thick ribbon made of high-entropy Al<sub>9.6</sub>Co<sub>12.5</sub>Cr<sub>12.2</sub>Fe<sub>39.4</sub>Ni<sub>24.3</sub>Mn<sub>2.0</sub> alloy by ultrarapid quenching from melt have been studied. The alloy underwent ultrarapid quenching consists of bcc-Fe-based solid solution and the fcc Co<sub>0.8</sub>Cr<sub>0.8</sub>Fe<sub>0.8</sub>Mn<sub>0.8</sub>Ni<sub>0.8</sub> phase. Under tensile loading, the deformation process becomes intermittent and stress-strain curves exhibit stress oscillations. It has been shown that strains estimated by the method of digital image correlation locally may nondestructively reach 1%, although the integral value of strain at failure does not exceed 0.5%. The deformation behavior of the thin ribbon made of high-entropy alloy has been analyzed at different structure-and-scale levels.</p>","PeriodicalId":769,"journal":{"name":"Russian Metallurgy (Metally)","volume":"2024 5","pages":"1064 - 1070"},"PeriodicalIF":0.4,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143379818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Formation of Gradient Structures in a Titanium Alloy during Reversible Hydrogen Alloying
IF 0.4
Russian Metallurgy (Metally) Pub Date : 2025-02-10 DOI: 10.1134/S0036029524702069
O. N. Gvozdeva, A. S. Stepushin, A. V. Shalin, G. V. Gurtovaya, N. V. Ruchina
{"title":"Formation of Gradient Structures in a Titanium Alloy during Reversible Hydrogen Alloying","authors":"O. N. Gvozdeva,&nbsp;A. S. Stepushin,&nbsp;A. V. Shalin,&nbsp;G. V. Gurtovaya,&nbsp;N. V. Ruchina","doi":"10.1134/S0036029524702069","DOIUrl":"10.1134/S0036029524702069","url":null,"abstract":"<p><b>Abstract</b>—The possibility of transforming a coarse lamellar structure and creating a gradient structure in titanium alloy VT23 samples during thermohydrogen treatment is investigated. The variation of the concentration–time hydrogenation annealing parameters is shown to control the hydrogen penetration depth and a surface layer structure. Subsequent low-temperature vacuum annealing makes it possible to transform a coarse lamellar structure into a fine structure with a hardness of 40 HRC. The thickness of a layer with a fine structure after unidirectional hydrogenation with a barrier coating is found to be twice as large as that after volumetric nonequilibrium hydrogenation in the absence of the coating.</p>","PeriodicalId":769,"journal":{"name":"Russian Metallurgy (Metally)","volume":"2024 5","pages":"1091 - 1096"},"PeriodicalIF":0.4,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143379821","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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