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Increasing the Fatigue Life of VT1-0 Titanium under the Influence of a Constant Magnetic Field 在恒定磁场影响下提高 VT1-0 钛的疲劳寿命
IF 0.8 4区 物理与天体物理
Technical Physics Letters Pub Date : 2024-06-03 DOI: 10.1134/S1063785024700202
K. V. Aksenova, V. V. Shlyarov, D. V. Zagulyaev, Yu. F. Ivanov, H. M. Mohan
{"title":"Increasing the Fatigue Life of VT1-0 Titanium under the Influence of a Constant Magnetic Field","authors":"K. V. Aksenova,&nbsp;V. V. Shlyarov,&nbsp;D. V. Zagulyaev,&nbsp;Yu. F. Ivanov,&nbsp;H. M. Mohan","doi":"10.1134/S1063785024700202","DOIUrl":"10.1134/S1063785024700202","url":null,"abstract":"<p>High-cycle fatigue tests of VT1-0 titanium samples were carried out under conditions of exposure to a constant magnetic field of various magnitudes and without it. It is shown that the use of a constant magnetic field with induction <i>B</i> = 0.3, 0.4, and 0.5 T leads to a multiple increase in the average number of cycles before the destruction of titanium samples VT1-0 by 64, 123, and 163%, respectively. Using scanning electron microscopy, it was found that the structure of a sample destroyed under fatigue testing conditions, regardless of the test mode, has three characteristic zones: a fatigue crack growth zone, an accelerated crack growth zone, and a fracture zone. It was found that the width of the fatigue crack growth zone depends on the magnetic field induction and reaches its maximum values (<i>h</i> = 264 μm) at <i>B</i> = 0.4 T, and during fatigue tests without a magnetic field, <i>h</i> = 182 μm. This indicates an increase in the critical crack length (the width of the fatigue crack growth zone) by a factor of 1.45. It is shown that the average distance between fatigue striations in titanium samples depends on the value of the magnetic induction of the magnetic field and decreases from 0.78 μm in the absence of a field to 0.49 μm at <i>B</i> = 0.5 T. The formation of a subgrain (fragmented) structure in the zone of fatigue crack growth in a titanium sample was established. The subgrain sizes correspond to the distance between the fatigue striations, which has a retarding effect on the movement of a microcrack. Taken together, the revealed facts indicate a higher resistance of the material to the propagation of a fatigue crack and an increase in its service life during fatigue tests in a magnetic field.</p>","PeriodicalId":784,"journal":{"name":"Technical Physics Letters","volume":"50 1","pages":"13 - 18"},"PeriodicalIF":0.8,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141252667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Solution of a Scalar Two-Dimensional Nonlinear Problem of Diffraction on Objects of Arbitrary Shape 解决任意形状物体上衍射的标量二维非线性问题
IF 0.8 4区 物理与天体物理
Technical Physics Letters Pub Date : 2024-06-03 DOI: 10.1134/S1063785024700196
A. O. Lapich, M. Yu. Medvedik
{"title":"Solution of a Scalar Two-Dimensional Nonlinear Problem of Diffraction on Objects of Arbitrary Shape","authors":"A. O. Lapich,&nbsp;M. Yu. Medvedik","doi":"10.1134/S1063785024700196","DOIUrl":"10.1134/S1063785024700196","url":null,"abstract":"<p>The aim of this study is to develop, construct, and implement methods for solving a nonlinear diffraction problem. The effect of a nonlinear medium specified by the Kerr law <span>({{k}^{2}}(x) = k_{1}^{2} + alpha {{left| {u(x)} right|}^{2}})</span> on the propagation of a wave through an object is examined. The differential and integral forms of the problem and the nonlinear integral equation are presented. The problem is solved on different bodies using different computational grids, and plots of convergence of iterative processes and graphical results are presented. Explicit and implicit methods for solving the integral equation are compared.</p>","PeriodicalId":784,"journal":{"name":"Technical Physics Letters","volume":"50 1","pages":"6 - 12"},"PeriodicalIF":0.8,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141252473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Investigation of Effect of the State of the Deformation Zones on the Structure of Pure-Iron Samples after Surface Plastic Deformation by a Multiradius Roller 多半径轧辊表面塑性变形后变形区状态对纯铁样品结构影响的研究
IF 0.8 4区 物理与天体物理
Technical Physics Letters Pub Date : 2024-06-03 DOI: 10.1134/S1063785024700214
V. Yu. Blumenstein, K. S. Mitrofanova
{"title":"Investigation of Effect of the State of the Deformation Zones on the Structure of Pure-Iron Samples after Surface Plastic Deformation by a Multiradius Roller","authors":"V. Yu. Blumenstein,&nbsp;K. S. Mitrofanova","doi":"10.1134/S1063785024700214","DOIUrl":"10.1134/S1063785024700214","url":null,"abstract":"<p>The article describes the peculiarities of the formation of the geometry of the deformation zones and the structure of samples made of pure-iron in surface plastic deformation (SPD) by a multiradius roller (MR-roller). The SPD MR-roller leads to a complex kinematic introduction of a deforming tool into the surface layer of a blank and the appearance of a deformation hearth of a curvilinear shape. The results of X-ray structural analysis of pure-iron are presented. It is shown that processing of SPD MR-roller with maximum force results in a significant increase in the microdistortion of the crystal grid, which is characteristic of the nanoscale structure.</p>","PeriodicalId":784,"journal":{"name":"Technical Physics Letters","volume":"50 1","pages":"19 - 24"},"PeriodicalIF":0.8,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141252543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fe–Cr–Al Alloy Development Via Wire-Feed Additive Manufacturing Technology 通过送丝快速成型技术开发铁-铬-铝合金
IF 0.8 4区 物理与天体物理
Technical Physics Letters Pub Date : 2024-06-03 DOI: 10.1134/S1063785024700287
Yanhu Wang, Xizhang Chen, S. Konovalov
{"title":"Fe–Cr–Al Alloy Development Via Wire-Feed Additive Manufacturing Technology","authors":"Yanhu Wang,&nbsp;Xizhang Chen,&nbsp;S. Konovalov","doi":"10.1134/S1063785024700287","DOIUrl":"10.1134/S1063785024700287","url":null,"abstract":"<p>A new wire-arc additive manufacturing (WAAM) based on Cold Metal Transfer (CMT) welding process is used to fabricate iron-chromium-aluminum (Fe–Cr–Al) alloy by simultaneously feeding two separate wires. A wall of Fe–Cr–Al containing approximately 4.2% Al and 6.5% Cr was deposited over a steel substrate. Chemical composition test performed on the deposited alloy indicated a uniform material distribution of element throughout the deposited wall. It was also found that an increase in Al content or decrease in Cr content improved the hardness of the Fe–Cr–Al alloy. A macro and microstructural characterization revealed that the top region of the wall contained equiaxed grains, whereas columnar grain in the middle region and some acicular precipitates of Fe<sub>3</sub>AlC<sub>0.5</sub> phase at the bottom were observed. The phases at different locations within the built wall were very different, especially, in the top section and bottom section. In the top and middle sections Fe<sub>3</sub>C carbide were found. The Cr<sub>3</sub>C<sub>2</sub> carbides were found in the top section. No (Cr,Fe)<sub><i>x</i></sub>C<sub><i>y</i></sub> carbides were found at the bottom of the buildup wall. A comparison of bottom and top sections indicated that the (Fe,Cr)<sub><i>x</i></sub>C<sub><i>y</i></sub> carbides have the ability to prevent cracks from occurring.</p>","PeriodicalId":784,"journal":{"name":"Technical Physics Letters","volume":"50 1","pages":"48 - 54"},"PeriodicalIF":0.8,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141252637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Gas-Dynamic Influence upon the Properties and Geometry of Single-Rim Welds Made of 30ХГСА Steel When Welding under a Double-Jet Gas Shield 在双喷射气体保护罩下焊接 30ХГСА 钢制单缘焊缝时气体动力学对其性能和几何形状的影响
IF 0.8 4区 物理与天体物理
Technical Physics Letters Pub Date : 2024-06-03 DOI: 10.1134/S1063785024700329
D. A. Chinakhov
{"title":"Gas-Dynamic Influence upon the Properties and Geometry of Single-Rim Welds Made of 30ХГСА Steel When Welding under a Double-Jet Gas Shield","authors":"D. A. Chinakhov","doi":"10.1134/S1063785024700329","DOIUrl":"10.1134/S1063785024700329","url":null,"abstract":"<p>The authors have considered the gas-dynamic influence upon the mechanical properties, chemical composition, microhardness, and geometry of single-rim welds made of 30ХГСА steel when welding with a consumable electrode under a double-jet gas shield. Their regressional relationships on the selected controlled welding parameters have been developed. It has been found that the gas-dynamic effect of a dynamic shield gas jet has a controlling influence on the formation of welds made of alloy-treated 30ХГСА steel.</p>","PeriodicalId":784,"journal":{"name":"Technical Physics Letters","volume":"50 1","pages":"67 - 74"},"PeriodicalIF":0.8,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141252669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Research of the Corrosive Effect of Coolant on the Internal Combustion Engines of Gas-Diesel Mining Dump Trucks 冷却液对天然气柴油采矿自卸车内燃机的腐蚀效应研究
IF 0.8 4区 物理与天体物理
Technical Physics Letters Pub Date : 2024-06-03 DOI: 10.1134/S1063785024700251
G. Dubov, A. Bogomolov, A. Chernichenko, S. Nokhrin
{"title":"Research of the Corrosive Effect of Coolant on the Internal Combustion Engines of Gas-Diesel Mining Dump Trucks","authors":"G. Dubov,&nbsp;A. Bogomolov,&nbsp;A. Chernichenko,&nbsp;S. Nokhrin","doi":"10.1134/S1063785024700251","DOIUrl":"10.1134/S1063785024700251","url":null,"abstract":"<p>The results of the study of the effect of low concentration of anti-corrosion additives in the coolant on corrosion, scaling and pitting of cooling jackets of the cylinder block of the internal combustion engines of the gas-diesel mining dump trucks are presented. The negative influence of the presence of coolant in the engine oil system has been studied. It is argued that even an insignificant concentration of coolant in the engine oil leads to cavitation with the concomitant occurrence of caverns or significant and deep pits—pockmarks—on especially stressed parts of the engine (crank-connecting rod liners, camshaft bushings). The conducted studies allow concluding that the coolant, in the presence of an insufficient concentration of anti-corrosion additives in it, as well as when it penetrates the oil system, has a sufficiently significant effect on the wear and destruction of the surface layer of the internal combustion engine parts.</p>","PeriodicalId":784,"journal":{"name":"Technical Physics Letters","volume":"50 1","pages":"30 - 36"},"PeriodicalIF":0.8,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141252355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Estimation of the Efficiency of Applying Nitrogen Powder Materials in Magnetic Abrasive Processing Technology 氮粉材料在磁性磨料加工技术中的应用效率估算
IF 0.8 4区 物理与天体物理
Technical Physics Letters Pub Date : 2024-06-03 DOI: 10.1134/S1063785024700263
G. Petrishin, F. Panteleenko, V. Blumenstein, F. Switala, E. Panteleenko
{"title":"Estimation of the Efficiency of Applying Nitrogen Powder Materials in Magnetic Abrasive Processing Technology","authors":"G. Petrishin,&nbsp;F. Panteleenko,&nbsp;V. Blumenstein,&nbsp;F. Switala,&nbsp;E. Panteleenko","doi":"10.1134/S1063785024700263","DOIUrl":"10.1134/S1063785024700263","url":null,"abstract":"<p>The article evaluates the efficiency of applying new diffusion-nitrided ferromagnetic abrasive materials in the technology of magnetic abrasive processing. In this work, the efficiency of processing and the attainable roughness of the processed surface are selected as efficiency criteria. The proposed new powder materials are manufactured by nitriding dispersed metal waste based on 16MnCr5 steel and provide an increase in the productivity of magnetic abrasive processing, an effective decrease in the roughness of the processed surface, and the achievement of a roughness Ra of 0.16 μm. The tests of new nitrided powder materials based on metal waste were carried out in comparison with the most common sintered powder material Fe–TiC.</p>","PeriodicalId":784,"journal":{"name":"Technical Physics Letters","volume":"50 1","pages":"37 - 41"},"PeriodicalIF":0.8,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141252388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Toward the Analysis of the Equation of Motion of a Ball Moving Unevenly in a Gravity Field 浅析在重力场中做匀速运动的小球的运动方程
IF 0.8 4区 物理与天体物理
Technical Physics Letters Pub Date : 2024-06-03 DOI: 10.1134/S1063785024700317
S. O. Gladkov
{"title":"Toward the Analysis of the Equation of Motion of a Ball Moving Unevenly in a Gravity Field","authors":"S. O. Gladkov","doi":"10.1134/S1063785024700317","DOIUrl":"10.1134/S1063785024700317","url":null,"abstract":"<p>An of the solution to the equation of motion of a ball in a gravity field is given with allowance for the dependence of the braking force on time. The calculations are based on an algorithm for solving the Abel integral equation.</p>","PeriodicalId":784,"journal":{"name":"Technical Physics Letters","volume":"50 1","pages":"63 - 66"},"PeriodicalIF":0.8,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141252466","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Physical and Chemical Characteristics of the Chromium and the Cerium Group Lanthanide-Based New Materials 铬和铈族镧系元素新材料的物理和化学特性
IF 0.8 4区 物理与天体物理
Technical Physics Letters Pub Date : 2024-06-03 DOI: 10.1134/S106378502470024X
E. V. Cherkasova, T. G. Cherkasova
{"title":"Physical and Chemical Characteristics of the Chromium and the Cerium Group Lanthanide-Based New Materials","authors":"E. V. Cherkasova,&nbsp;T. G. Cherkasova","doi":"10.1134/S106378502470024X","DOIUrl":"10.1134/S106378502470024X","url":null,"abstract":"<p>Some physical and chemical characteristics of hexa(thiocyanate-N)chromate complexes of cerium lanthanides with 3-pyridine-3-carboxylic acid are studied. It was shown by IR spectroscopy that the compounds are N-thiocyanate, the organic ligand is bidentate. It was established by X-ray diffraction analysis that substances have an isle structure, crystallize acoording the same structural type, and their crystallographic parameters change regularly in accordance with the change in the radii of Ln<sup>3+</sup> ions. The compositions of the substances differ only in the content of crystallization water in the molecules. The magnetic characteristics and thermal behavior of substances in an inert atmosphere and oxidizing atmospheres are presented.</p>","PeriodicalId":784,"journal":{"name":"Technical Physics Letters","volume":"50 1","pages":"25 - 29"},"PeriodicalIF":0.8,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141253001","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Study of the Electrostatic Method of Applying Abrasive Grains to the Grinding Tool Backing 将磨粒应用于磨削工具底面的静电方法研究
IF 0.8 4区 物理与天体物理
Technical Physics Letters Pub Date : 2024-06-03 DOI: 10.1134/S1063785024700275
D. B. Shatko, V. S. Lyukshin, P. A. Strelnikov
{"title":"Study of the Electrostatic Method of Applying Abrasive Grains to the Grinding Tool Backing","authors":"D. B. Shatko,&nbsp;V. S. Lyukshin,&nbsp;P. A. Strelnikov","doi":"10.1134/S1063785024700275","DOIUrl":"10.1134/S1063785024700275","url":null,"abstract":"<p>The article is devoted to the study of the problem of the electrostatic method of applying abrasive to the surface of the backing when manufacturing flexible grinding tools. An original technique for the manufacture of experimental samples with abrasive grains oriented at various angles is presented in the article. The diagrams of apparatuses for the orientation of grains relative to the backing surface are given. The optimal angle of grain orientation was revealed and substantiated experimentally. The parameter of the influence of changing the distance between the electrodes on the degree of concentration of grains on the backing surface of the samples is analyzed. The percentage ratios of oriented abrasive grains relative to their total number for various grain sizes are presented. The relationship between the angle of inclination and the actual number of grains per unit surface of the backing is determined. Based on the statistical data obtained, conclusions are formulated that can be used in the manufacture of flexible grinding tools.</p>","PeriodicalId":784,"journal":{"name":"Technical Physics Letters","volume":"50 1","pages":"42 - 47"},"PeriodicalIF":0.8,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141252671","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","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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