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Effect of Cyclic Heating on the Properties of PEO Coatings on an UFG Ti–18Zr–15Nb Alloy 循环加热对UFG Ti-18Zr-15Nb合金PEO涂层性能的影响
IF 0.4
Russian Metallurgy (Metally) Pub Date : 2025-03-24 DOI: 10.1134/S0036029525700338
L. I. Zaynullina, I. Z. Sharipov, D. V. Gunderov, R. G. Farrakhov, E. V. Parfenov
{"title":"Effect of Cyclic Heating on the Properties of PEO Coatings on an UFG Ti–18Zr–15Nb Alloy","authors":"L. I. Zaynullina,&nbsp;I. Z. Sharipov,&nbsp;D. V. Gunderov,&nbsp;R. G. Farrakhov,&nbsp;E. V. Parfenov","doi":"10.1134/S0036029525700338","DOIUrl":"10.1134/S0036029525700338","url":null,"abstract":"<p><b>Abstract</b>—The temperature dependence of the Ti–18Zr–15Nb alloy dilation in an ultrafine-grained (UFG) state formed by equal-channel angular pressing (ECAP), which is coated using plasma-electrolytic oxidation (PEO), is investigated. The stability of the formed PEO coatings to heating and cooling has also been determined. The results demonstrate that a sharp increase in the thermal expansion coefficient (TEC) at 350°C indicates the presence of a phase transformation. During tests, a porous coating on the Ti–18Zr–15Nb alloy is retained, but cracks become larger and longer.</p>","PeriodicalId":769,"journal":{"name":"Russian Metallurgy (Metally)","volume":"2024 8","pages":"1797 - 1802"},"PeriodicalIF":0.4,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143688569","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
Film Materials Derived from Modified Solution Systems Based on Polyvinyl Alcohol 聚乙烯醇改性溶液体系制备的薄膜材料
IF 0.4
Russian Metallurgy (Metally) Pub Date : 2025-03-24 DOI: 10.1134/S0036029525700326
M. I. Gubanova, N. S. Bazhenov, I. A. Kirsh, O. A. Bannikova, V. A. Dymitskii
{"title":"Film Materials Derived from Modified Solution Systems Based on Polyvinyl Alcohol","authors":"M. I. Gubanova,&nbsp;N. S. Bazhenov,&nbsp;I. A. Kirsh,&nbsp;O. A. Bannikova,&nbsp;V. A. Dymitskii","doi":"10.1134/S0036029525700326","DOIUrl":"10.1134/S0036029525700326","url":null,"abstract":"<p><b>Abstract</b>—Film materials derived from modified solution systems based on polyvinyl alcohol (PVA) are studied. The influence of various concentrations of PVA solutions on the barrier (vapor permeability) and physicomechanical properties of the films is examined. The fracture strength increases, the relative elongation decreases markedly, and the permeability of the polymer increases sharply with an increase in the glycerol concentration in PVA. The introduction of 20–30% plasticizer into PVA results in the formation of a sufficiently elastic film: the relative elongation to failure increases, and the ultimate tensile strength decreases.</p>","PeriodicalId":769,"journal":{"name":"Russian Metallurgy (Metally)","volume":"2024 8","pages":"1789 - 1796"},"PeriodicalIF":0.4,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143688568","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
Cermets Produced by Explosive Pressing of Carbide and Titanium Powder Mixtures 碳化物和钛粉混合物的爆炸压制生产的陶瓷
IF 0.4
Russian Metallurgy (Metally) Pub Date : 2025-03-24 DOI: 10.1134/S003602952570034X
A. V. Krokhalev, V. O. Kharlamov, D. R. Chernikov, E. A. Kosova, G. K. Kuznetsov, S. V. Kuz’min, V. I. Lysak
{"title":"Cermets Produced by Explosive Pressing of Carbide and Titanium Powder Mixtures","authors":"A. V. Krokhalev,&nbsp;V. O. Kharlamov,&nbsp;D. R. Chernikov,&nbsp;E. A. Kosova,&nbsp;G. K. Kuznetsov,&nbsp;S. V. Kuz’min,&nbsp;V. I. Lysak","doi":"10.1134/S003602952570034X","DOIUrl":"10.1134/S003602952570034X","url":null,"abstract":"<p><b>Abstract</b>—The main features of the formation of Cr<sub>3</sub>C<sub>2</sub>–Ti and SiC–Ti cermets during explosive pressing of powder mixtures on a steel base are considered. Strong interfaces between a carbide (Cr<sub>3</sub>C<sub>2</sub> or SiC) and titanium are found to form when the heating temperature of a powder mixture during shock-wave compression reaches (0.35–0.4)<i>T</i><sub>m</sub>, where <i>T</i><sub>m</sub> is the melting temperature of the carbide. Here, the chemical compositions of the alloy components do not change, no element redistribution between phases occurs in macrovolumes, and the hardness reaches its maximum.</p>","PeriodicalId":769,"journal":{"name":"Russian Metallurgy (Metally)","volume":"2024 8","pages":"1803 - 1807"},"PeriodicalIF":0.4,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143688570","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
Evolution of the Surface Layer of the Al–15% Si–Y2O3 System after Combined Treatment 复合处理后Al-15% Si-Y2O3体系表面层的演变
IF 0.4
Russian Metallurgy (Metally) Pub Date : 2025-03-24 DOI: 10.1134/S0036029525700375
Yu. A. Shlyarova, V. V. Shlyarov, I. A. Panchenko, Yu. F. Ivanov, D. V. Zagulyaev, A. N. Prudnikov
{"title":"Evolution of the Surface Layer of the Al–15% Si–Y2O3 System after Combined Treatment","authors":"Yu. A. Shlyarova,&nbsp;V. V. Shlyarov,&nbsp;I. A. Panchenko,&nbsp;Yu. F. Ivanov,&nbsp;D. V. Zagulyaev,&nbsp;A. N. Prudnikov","doi":"10.1134/S0036029525700375","DOIUrl":"10.1134/S0036029525700375","url":null,"abstract":"<p><b>Abstract</b>—Al–Si alloys are indispensable in various industries, such as aerospace and automotive ones, due to their high strength-to-weight ratio, high thermal conductivity, and corrosion resistance. These alloys often contain elements such as Si, Cu, Mg, and Zr, which improve their properties, and special compositions make it possible to increase strength and wear resistance and to improve a granular structure. The paper describes a combined modification of the surface layer of a hypereutectic Al–15% Si alloy, which consists in electroexplosive alloying by the Al–Y<sub>2</sub>O<sub>3</sub> system followed by irradiation with a pulsed electron beam. Combined treatment is found to cause a multiple (by ~7.6 times) increase in the wear resistance of the modified silumin layer. The modified 35-μm-thick sample volume has a multilayer multielement multiphase structure and is reinforced with oxide nanoparticles. Pulsed electron beam irradiation of the surface of the silumin subjected to electroexplosive alloying is found not to bring about dissolution of an yttrium oxide powder: regions enriched in yttrium atoms are present at the sample surface. The revealed multiple increase in the wear resistance of the silumin subjected to combined treatment is thought to be caused by the formation of oxide nanoparticles in the surface layer.</p>","PeriodicalId":769,"journal":{"name":"Russian Metallurgy (Metally)","volume":"2024 8","pages":"1819 - 1826"},"PeriodicalIF":0.4,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143688327","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
Analysis of the Formation of Shape and Structure Defects in Spherical Nickel Monoaluminide NiAl Powders during Their Production 球形一铝化镍粉生产过程中形状和结构缺陷的形成分析
IF 0.4
Russian Metallurgy (Metally) Pub Date : 2025-03-19 DOI: 10.1134/S0036029524703014
M. V. Zharov
{"title":"Analysis of the Formation of Shape and Structure Defects in Spherical Nickel Monoaluminide NiAl Powders during Their Production","authors":"M. V. Zharov","doi":"10.1134/S0036029524703014","DOIUrl":"10.1134/S0036029524703014","url":null,"abstract":"<p>The appearance of defects in nickel monoaluminide NiAl granules during various processes of production of spherical granules is analyzed. The technological processes of producing granules are considered from the point of view of manufacturing high-quality raw materials. Quality criteria for producing nickel monoaluminide NiAl granules are determined. They include the minimum number of granules with internal porosity and other shape defects, high sphericity of particles, high stability of the particle sizes, the absence of satellites on the granules surface, the presence of a fine dendritic structure of the granule material, and so on. Several methods for producing nickel monoaluminide NiAl granules were investigated from the point of view of producing high-quality raw materials. The influence of cooling intensity and granule solidification rates on the dispersion of the material structure and the optimum parameters of centrifugal spraying of a rotating electrode, which ensure the production of high-quality granules, are determined. A developed and tested technology for producing a high-quality spherical NiAl material powder is proposed.</p>","PeriodicalId":769,"journal":{"name":"Russian Metallurgy (Metally)","volume":"2024 7","pages":"1723 - 1730"},"PeriodicalIF":0.4,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143655162","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 Microarc Oxidation Coating on the Corrosion Resistance of a Nanostructured Eutectic Aluminum Alloy 微弧氧化涂层对纳米共晶铝合金耐蚀性的影响
IF 0.4
Russian Metallurgy (Metally) Pub Date : 2025-03-19 DOI: 10.1134/S0036029524702793
N. Yu. Dudareva, S. K. Kiseleva, L. I. Zainullina, M. M. Abramova, A. V. Kolomeichenko
{"title":"Effect of Microarc Oxidation Coating on the Corrosion Resistance of a Nanostructured Eutectic Aluminum Alloy","authors":"N. Yu. Dudareva,&nbsp;S. K. Kiseleva,&nbsp;L. I. Zainullina,&nbsp;M. M. Abramova,&nbsp;A. V. Kolomeichenko","doi":"10.1134/S0036029524702793","DOIUrl":"10.1134/S0036029524702793","url":null,"abstract":"<p>The effect of the structure and corrosion-protective properties of the coatings formed by microarc oxidation (MAO) on a eutectic aluminum alloy with an ultrafine-grained (UFG) structure or an initial structure is studied. The UFG structure is found to increase the corrosion rate of samples by 15.3 times. The coating increases the corrosion rate of the coarse-grained alloy by 2.5 times and does not affect the corrosion rate of the sample with an UFG structure.</p>","PeriodicalId":769,"journal":{"name":"Russian Metallurgy (Metally)","volume":"2024 7","pages":"1584 - 1590"},"PeriodicalIF":0.4,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143655319","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
Computer Simulation of the Stress State Parameters of Steel Strips during Symmetric and Asymmetric Cold Strip Rolling 对称和非对称冷轧钢带应力状态参数的计算机模拟
IF 0.4
Russian Metallurgy (Metally) Pub Date : 2025-03-19 DOI: 10.1134/S0036029524703051
M. M. Skripalenko, A. V. Kozhevnikov, I. A. Kozhevnikova, M. N. Skripalenko, A. A. Sidorov, A. A. Semenov, B. A. Romantsev, V. S. Yusupov
{"title":"Computer Simulation of the Stress State Parameters of Steel Strips during Symmetric and Asymmetric Cold Strip Rolling","authors":"M. M. Skripalenko,&nbsp;A. V. Kozhevnikov,&nbsp;I. A. Kozhevnikova,&nbsp;M. N. Skripalenko,&nbsp;A. A. Sidorov,&nbsp;A. A. Semenov,&nbsp;B. A. Romantsev,&nbsp;V. S. Yusupov","doi":"10.1134/S0036029524703051","DOIUrl":"10.1134/S0036029524703051","url":null,"abstract":"<p>The processes of symmetric and asymmetric cold rolling of a steel strip are subjected to computer simulation in the DEFORM Finite Element Method (FEM) software. The rolling of strips from a thickness of 6 to 3.7 mm and from 2 to 1.4 mm is investigated. The simulation is carried out at the same roll diameter (600 mm) and an asymmetry of 0.83% (upper roll diameter is 595 mm; lower, 600 mm), 1.67% (upper roll diameter is 590 mm; lower, 600 mm), and 5% (upper roll diameter is 570 mm; lower, 600 mm). The influence of a change in the asymmetry of roll diameters on the strain effective across the rolled strip thickness and on the average value of the normalized Cockcroft–Latham damage criterion is studied.</p>","PeriodicalId":769,"journal":{"name":"Russian Metallurgy (Metally)","volume":"2024 7","pages":"1754 - 1759"},"PeriodicalIF":0.4,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143655339","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
Application of Polymer Materials to Increase the Frost Resistance of Nonmetallic Air Suspension Elements 应用聚合物材料提高非金属空气悬浮元件的抗冻性
IF 0.4
Russian Metallurgy (Metally) Pub Date : 2025-03-19 DOI: 10.1134/S0036029524702902
I. G. Marenkov, N. I. Baurova
{"title":"Application of Polymer Materials to Increase the Frost Resistance of Nonmetallic Air Suspension Elements","authors":"I. G. Marenkov,&nbsp;N. I. Baurova","doi":"10.1134/S0036029524702902","DOIUrl":"10.1134/S0036029524702902","url":null,"abstract":"<p>The possibility of using impregnation compositions for servicing the rubber elements of the air suspension of road vehicles is estimated. As impregnating compositions, Solidol (cheapest general-purpose grease) and an anaerobic AN-1U material (more expensive impregnation composition) are used. The use of impregnation compositions in the maintenance of the rubber elements of the air suspension of road vehicles is shown to increase their resistance to negative temperatures, to minimize material cracking, and, consequently, to increase the service life of the suspension. The capabilities of the LS-Dyna software package for solving engineering problems are demonstrated. The current directions of further research in this field are considered.</p>","PeriodicalId":769,"journal":{"name":"Russian Metallurgy (Metally)","volume":"2024 7","pages":"1654 - 1658"},"PeriodicalIF":0.4,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143655348","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
Principles of Development of an Integrated Process and a Computer-Aided Technology for the Production of Critical Parts by Casting High-Strength Aluminum Alloys 高强度铝合金铸造关键件集成工艺及计算机辅助技术的开发原理
IF 0.4
Russian Metallurgy (Metally) Pub Date : 2025-03-19 DOI: 10.1134/S0036029524702689
M. S. Denisov, K. E. Davydov, S. M. Petukhova
{"title":"Principles of Development of an Integrated Process and a Computer-Aided Technology for the Production of Critical Parts by Casting High-Strength Aluminum Alloys","authors":"M. S. Denisov,&nbsp;K. E. Davydov,&nbsp;S. M. Petukhova","doi":"10.1134/S0036029524702689","DOIUrl":"10.1134/S0036029524702689","url":null,"abstract":"<p>Casting with an application of pressure to a liquid and solidifying metal is suggested to produce critical parts. A unique research technique is proposed, and the main parameters of the process ensuring controlled formation of a metal structure without casting defects are determined. Reasonable conclusions are drawn that the developed process is universal and can be used for the production of other types of critical parts.</p>","PeriodicalId":769,"journal":{"name":"Russian Metallurgy (Metally)","volume":"2024 7","pages":"1508 - 1515"},"PeriodicalIF":0.4,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143655278","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 Ultrasonic Vibrations on Obtaining Pressed Compounds 超声波振动对获得压制化合物的影响
IF 0.4
Russian Metallurgy (Metally) Pub Date : 2025-03-19 DOI: 10.1134/S0036029524702951
S. K. Sundukov
{"title":"Effect of Ultrasonic Vibrations on Obtaining Pressed Compounds","authors":"S. K. Sundukov","doi":"10.1134/S0036029524702951","DOIUrl":"10.1134/S0036029524702951","url":null,"abstract":"<p>The results of investigations on ultrasonic press-fitting of cylindrical parts are reported. Under the action of vibrations, the press-fitting depth increases by 1.5–4 times depending on the pressing mode. With increasing roughness, the press-fit depth increases due to a decrease in the friction force because of the lubricating action of metal particles formed during asperity crumpling of surface microroughnesses.</p>","PeriodicalId":769,"journal":{"name":"Russian Metallurgy (Metally)","volume":"2024 7","pages":"1685 - 1693"},"PeriodicalIF":0.4,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143655345","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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