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Analysis of the Possibility of Carburizing Intensification in Modern Coreless Induction Furnaces 现代无芯感应炉渗碳强化可能性分析
IF 0.4
Russian Metallurgy (Metally) Pub Date : 2025-03-14 DOI: 10.1134/S0036029524702604
A. I. Malyarov, O. V. Devochkin, A. A. Nechkina
{"title":"Analysis of the Possibility of Carburizing Intensification in Modern Coreless Induction Furnaces","authors":"A. I. Malyarov,&nbsp;O. V. Devochkin,&nbsp;A. A. Nechkina","doi":"10.1134/S0036029524702604","DOIUrl":"10.1134/S0036029524702604","url":null,"abstract":"<p>The primary cause of the problem of carburizing a metal in coreless induction furnaces is shown to be a low energy intensity of the carbon dissolution in the iron melt. This leads to excess overheating of the melt and an increase in the melting time. To prevent overheating, it is proposed to combine the carburizing process with the melting of returns. The required amount of return is shown to be less than its content in the metal balance of enterprises.</p>","PeriodicalId":769,"journal":{"name":"Russian Metallurgy (Metally)","volume":"2024 6","pages":"1460 - 1465"},"PeriodicalIF":0.4,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143621982","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
X-Ray Studies of the Powders Produced by Electrodispersion of the Waste of a Tungsten-Free TN20 Hard Alloy 无钨TN20硬质合金废料电分散制备粉末的x射线研究
IF 0.4
Russian Metallurgy (Metally) Pub Date : 2025-03-14 DOI: 10.1134/S0036029524702628
E. V. Ageeva, N. M. Khor’yakova, B. N. Sabel’nikov, A. E. Ageeva
{"title":"X-Ray Studies of the Powders Produced by Electrodispersion of the Waste of a Tungsten-Free TN20 Hard Alloy","authors":"E. V. Ageeva,&nbsp;N. M. Khor’yakova,&nbsp;B. N. Sabel’nikov,&nbsp;A. E. Ageeva","doi":"10.1134/S0036029524702628","DOIUrl":"10.1134/S0036029524702628","url":null,"abstract":"<p>X-ray studies are performed to study the powders fabricated by electrodispersion of the waste of a TN20 tungsten-free hard alloy (TFHA) in various working fluids. The electrodispersion of the TN20 TFHA waste in alcohol is shown to ensure the supply of active carbon to a reaction zone at temperatures initiating the formation of carbide phases and the presence of free carbon on the surface, and the electrodispersion of the TN20 TFHA waste in water promotes the formation of oxide phases and the presence of oxygen on the surface.</p>","PeriodicalId":769,"journal":{"name":"Russian Metallurgy (Metally)","volume":"2024 6","pages":"1473 - 1476"},"PeriodicalIF":0.4,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143621983","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 Rotation of a Consumable Electrode on the Hydrodynamics of the Slag Bath during Electroslag Remelting 电渣重熔过程中耗材电极旋转对渣浴流体动力学的影响
IF 0.4
Russian Metallurgy (Metally) Pub Date : 2025-03-14 DOI: 10.1134/S0036029524702367
I. V. Chumanov, I. M. Yachikov, M. I. Yachikov, M. A. Matveeva, D. V. Sergeev
{"title":"Effect of Rotation of a Consumable Electrode on the Hydrodynamics of the Slag Bath during Electroslag Remelting","authors":"I. V. Chumanov,&nbsp;I. M. Yachikov,&nbsp;M. I. Yachikov,&nbsp;M. A. Matveeva,&nbsp;D. V. Sergeev","doi":"10.1134/S0036029524702367","DOIUrl":"10.1134/S0036029524702367","url":null,"abstract":"<p><b>Abstract</b>—A mathematical model is proposed to estimate the effect of rotation of a consumable electrode on the hydrodynamics of a slag bath during electroslag remelting. The critical speed of electrode rotation is determined as a function of the electrode diameter for the transition of a laminar to turbulent flow for an ANF-6 flux. The dependence of the flux velocity in the slag bath on the speed of electrode rotation is determined. An expression is proposed to estimate the time of renewal of the slag bath. The ratio of centrifugal to electromagnetic force is estimated; it determines the liquid-slag flow pattern and the conditions under which the hydrodynamics of the slag bath is controlled by centrifugal forces.</p>","PeriodicalId":769,"journal":{"name":"Russian Metallurgy (Metally)","volume":"2024 6","pages":"1291 - 1297"},"PeriodicalIF":0.4,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143622124","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 Linear Gradient Structures in Titanium Alloys Subjected to Hydrothermal Treatment 热液处理钛合金中线性梯度结构的形成
IF 0.4
Russian Metallurgy (Metally) Pub Date : 2025-03-14 DOI: 10.1134/S0036029524702550
A. S. Stepushin, O. N. Gvozdeva, A. V. Shalin, P. A. Smirnov, A. S. Zhurbenko
{"title":"Formation of Linear Gradient Structures in Titanium Alloys Subjected to Hydrothermal Treatment","authors":"A. S. Stepushin,&nbsp;O. N. Gvozdeva,&nbsp;A. V. Shalin,&nbsp;P. A. Smirnov,&nbsp;A. S. Zhurbenko","doi":"10.1134/S0036029524702550","DOIUrl":"10.1134/S0036029524702550","url":null,"abstract":"<p>Structuring in hydrogen-alloyed VT22 titanium alloy subjected to vacuum annealing has been studied. It has been found that the alloy undergoes β → α transformation during low-temperature vacuum annealing, as a result of which the large-platelet structure changes to a dispersed one. The particle size of the resulting degassing-induced phase (α<sub>deg</sub>) is no greater than 0.5 μm, and its hardness is 38 HRC. It has also been found that in the case of unidirectional hydrogenation with a barrier coating, the thickness of a layer with dispersed structure is 1.3 times greater than for omnidirectional hydrogenation without the coating with the temperature–rate conditions of the process being the same.</p>","PeriodicalId":769,"journal":{"name":"Russian Metallurgy (Metally)","volume":"2024 6","pages":"1423 - 1429"},"PeriodicalIF":0.4,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143622029","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
Wear Resistance of Low-Magnetic Nitrogen Containing Austenitic Steel under Dry Sliding Friction Conditions at Various Test Parameters 低磁含氮奥氏体钢干滑动摩擦条件下不同试验参数下的耐磨性
IF 0.4
Russian Metallurgy (Metally) Pub Date : 2025-03-14 DOI: 10.1134/S0036029524702410
G. S. Seval’nev, O. V. Fomina, E. I. Lukin, I. O. Bannykh, A. S. Teplenicheva, K. D. Oblivantsev
{"title":"Wear Resistance of Low-Magnetic Nitrogen Containing Austenitic Steel under Dry Sliding Friction Conditions at Various Test Parameters","authors":"G. S. Seval’nev,&nbsp;O. V. Fomina,&nbsp;E. I. Lukin,&nbsp;I. O. Bannykh,&nbsp;A. S. Teplenicheva,&nbsp;K. D. Oblivantsev","doi":"10.1134/S0036029524702410","DOIUrl":"10.1134/S0036029524702410","url":null,"abstract":"<p><b>Abstract</b>—The tribotechnical characteristics of high-strength corrosion-resistant austenitic 04Kh20N6G11M2AFB steel are studied as functions of the wear test parameters (load, slip velocity) under dry sliding friction conditions. The results show that the best wear resistance is observed in samples after hot deformation at the highest test parameters. The wear rate of the samples with identical hardness is revealed to be 15% higher after heat treatment than that in samples after hot deformation.</p>","PeriodicalId":769,"journal":{"name":"Russian Metallurgy (Metally)","volume":"2024 6","pages":"1332 - 1340"},"PeriodicalIF":0.4,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143622111","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
Computational–Experimental Estimation of the Thermal-Deformation Conditions of Electrocontact Welding of a Woven Steel Gauze to Copper-Based Alloy Parts 编织钢网与铜基合金零件电接触焊接热变形条件的计算-实验估计
IF 0.4
Russian Metallurgy (Metally) Pub Date : 2025-03-14 DOI: 10.1134/S0036029524702409
V. S. Natalenko, G. R. Latypova, V. V. Bulychev, R. A. Latypov, M. Alsobkh
{"title":"Computational–Experimental Estimation of the Thermal-Deformation Conditions of Electrocontact Welding of a Woven Steel Gauze to Copper-Based Alloy Parts","authors":"V. S. Natalenko,&nbsp;G. R. Latypova,&nbsp;V. V. Bulychev,&nbsp;R. A. Latypov,&nbsp;M. Alsobkh","doi":"10.1134/S0036029524702409","DOIUrl":"10.1134/S0036029524702409","url":null,"abstract":"<p><b>Abstract</b>—The theoretical problems related to the thermal-deformation processes during electrocontact welding of a woven steel wire gauze to copper-based alloy parts are studied. Mathematical dependences have been obtained to relate the geometric parameters of a gauze to the conditions of its welding using the proposed gauze shape coefficient.</p>","PeriodicalId":769,"journal":{"name":"Russian Metallurgy (Metally)","volume":"2024 6","pages":"1324 - 1331"},"PeriodicalIF":0.4,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143622112","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
Influence of the Titanium Carbide Content in a Filler Powder Wire Charge on the Structure of the Weld Metal 焊丝中碳化钛含量对焊缝金属组织的影响
IF 0.4
Russian Metallurgy (Metally) Pub Date : 2025-03-14 DOI: 10.1134/S003602952470232X
N. V. Kobernik, A. C. Pankratov, Yu. V. Andriyanov, A. L. Galinovskii, A. G. Orlik
{"title":"Influence of the Titanium Carbide Content in a Filler Powder Wire Charge on the Structure of the Weld Metal","authors":"N. V. Kobernik,&nbsp;A. C. Pankratov,&nbsp;Yu. V. Andriyanov,&nbsp;A. L. Galinovskii,&nbsp;A. G. Orlik","doi":"10.1134/S003602952470232X","DOIUrl":"10.1134/S003602952470232X","url":null,"abstract":"<p>The changes in the microstructure and hardness of the metal deposited with a powder wire 2 mm in diameter with various titanium carbide contents in a charge (from 10 to 100 wt %) during their surfacing by an unconsumable electrode are studied. In all cases, titanium carbide is shown to be conserved only partially and to be nonuniformly distributed over entire welding bath volume. TiC partially dissolves in the welding bath melt and then leads to the formation of fine (3–11 μm) titanium carbide phases in the eutectic. An increase in the titanium carbide content in the charge composition leads to a change in the form of fine carbides and also their sizes. The hardness of the weld metal is found to change insignificantly as the TiC content increases from 10 to 45%; however, in the case of surfacing by a wire with 100% TiC, the hardness decreases due to the absence of alloying elements in the powder wire charge. The introduction of titanium carbide through a filler flux-cored powder wire does not allow one to significantly decrease the degree of dissolving the carbide in the weld metal as compared to the introduction of titanium carbide with an electrode material.</p>","PeriodicalId":769,"journal":{"name":"Russian Metallurgy (Metally)","volume":"2024 6","pages":"1268 - 1273"},"PeriodicalIF":0.4,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143622123","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
Structural State and Composition of Zr–Y–O Ceramic Coatings Fabricated by Magnetron Plasmachemical Deposition 磁控等离子沉积制备Zr-Y-O陶瓷涂层的结构状态和成分
IF 0.4
Russian Metallurgy (Metally) Pub Date : 2025-03-14 DOI: 10.1134/S0036029524702495
O. N. Doronin, I. M. Ivanov, A. S. Benklyan, N. I. Artemenko
{"title":"Structural State and Composition of Zr–Y–O Ceramic Coatings Fabricated by Magnetron Plasmachemical Deposition","authors":"O. N. Doronin,&nbsp;I. M. Ivanov,&nbsp;A. S. Benklyan,&nbsp;N. I. Artemenko","doi":"10.1134/S0036029524702495","DOIUrl":"10.1134/S0036029524702495","url":null,"abstract":"<p>The structure and chemical composition of the ceramic layers of thermal barrier coatings, which are deposited by medium-frequency magnetron plasmachemical deposition, electron-beam physical vapor deposition, and atmospheric plasma sputtering, are studied. The magnetron coatings are shown to have a columnar structure, which is similar to that of the electron-beam coating, and horizontal boundaries related to the peculiarities of the deposition process. The results of energy dispersive spectroscopy demonstrate that the oxygen content in the magnetron coating turns out to be highest, exceeding the calculated value by about 5%.</p>","PeriodicalId":769,"journal":{"name":"Russian Metallurgy (Metally)","volume":"2024 6","pages":"1386 - 1390"},"PeriodicalIF":0.4,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143622215","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
New Technology for Additive Manufacturing of an Fe–Cu Composite Material 一种Fe-Cu复合材料增材制造新技术
IF 0.4
Russian Metallurgy (Metally) Pub Date : 2025-03-14 DOI: 10.1134/S0036029524702562
I. N. Shiganov, V. V. Ovchinnikov, A. A. Kholopov, A. D. Shlyapin
{"title":"New Technology for Additive Manufacturing of an Fe–Cu Composite Material","authors":"I. N. Shiganov,&nbsp;V. V. Ovchinnikov,&nbsp;A. A. Kholopov,&nbsp;A. D. Shlyapin","doi":"10.1134/S0036029524702562","DOIUrl":"10.1134/S0036029524702562","url":null,"abstract":"<p>The possibilities of a new method for producing an Fe–Cu composite material based on an additive coaxial laser melting technology are investigated. Melting conditions, powders, and growing strategy are chosen. The microstructures of the following compositions were studied (%): 75Fe–25Cu, 50Fe–50Cu, and 25Fe–75Cu. The structure of these materials is found to be a copper matrix with uniformly distributed iron particles. No separation of the elements in the track volume is detected. There is no porosity. Electron microscopy has shown that the solubility of the elements in each other is minimal, no more than 2–3%. Samples up to 10 mm thick with a uniform iron distribution in the copper matrix volume are fabricated by superimposing tracks on each other in both horizontal and vertical directions. The possibility of producing a material by melting steel and bronze powders taken in the ratio 40% AISI316 and 60% BrKh0.8 without separation has been demonstrated.</p>","PeriodicalId":769,"journal":{"name":"Russian Metallurgy (Metally)","volume":"2024 6","pages":"1430 - 1435"},"PeriodicalIF":0.4,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143622016","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
Influence of Scandium Alloying during Metal Smelting on the Mechanism of High-Temperature Deformation of Candidate Nickel Alloys for Reactor Engineering 金属熔炼过程中钪合金化对反应堆工程候选镍合金高温变形机理的影响
IF 0.4
Russian Metallurgy (Metally) Pub Date : 2025-03-14 DOI: 10.1134/S0036029524702574
V. O. Ivanov, A. B. Korostelev, M. V. Shishimirov, A. S. Naumkin, A. I. Sednev, S. V. Bogdanov
{"title":"Influence of Scandium Alloying during Metal Smelting on the Mechanism of High-Temperature Deformation of Candidate Nickel Alloys for Reactor Engineering","authors":"V. O. Ivanov,&nbsp;A. B. Korostelev,&nbsp;M. V. Shishimirov,&nbsp;A. S. Naumkin,&nbsp;A. I. Sednev,&nbsp;S. V. Bogdanov","doi":"10.1134/S0036029524702574","DOIUrl":"10.1134/S0036029524702574","url":null,"abstract":"<p>The results of materials investigation including metallographic and fractographic comparative analyses of the physical properties and structure of deformed nickel alloys with a known composition (with and without scandium) are presented. Based on structure analysis data and their comparison with data of short-term mechanical tests of the alloys at 750°C, a mechanism of high-temperature alloy fracture has been discovered. Recommendations ate given for using alloys with a scandium microaddition as structural materials intended for the manufacture and application of products operating in the temperature range 600–800°C. The advisability of using scandium-containing KhN62M-VI nickel alloy is confirmed by its higher mechanical performance and also by the fact that it is not prone to brittle fracture in tests carried out at 20 and 750°C.</p>","PeriodicalId":769,"journal":{"name":"Russian Metallurgy (Metally)","volume":"2024 6","pages":"1436 - 1442"},"PeriodicalIF":0.4,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143621975","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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