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Effect of heat treatment on microstructure and mechanical properties of engineering steels with increased silicon and molybdenum content 热处理对增加硅钼含量工程钢组织和力学性能的影响
IF 0.9 4区 材料科学
Metallurgist Pub Date : 2026-10-05 DOI: 10.1007/s11015-026-02149-w
M. V. Maisuradze, M. A. Ryzhkov, A. A. Kuklina, A. K. Smirnov, I. A. Shevchenko
{"title":"Effect of heat treatment on microstructure and mechanical properties of engineering steels with increased silicon and molybdenum content","authors":"M. V. Maisuradze,&nbsp;M. A. Ryzhkov,&nbsp;A. A. Kuklina,&nbsp;A. K. Smirnov,&nbsp;I. A. Shevchenko","doi":"10.1007/s11015-026-02149-w","DOIUrl":"10.1007/s11015-026-02149-w","url":null,"abstract":"<div><p>A dilatometric study of the supercooled austenite transformations occurring in experimental engineering steels 20Mn2Si2Mo1 and 20CrMnSi2Mo1 with increased silicon and molybdenum content during continuous cooling was conducted. The dilatometric curves and resulting microstructure were analyzed. Continuous cooling transformation (CCT) diagrams were plotted for the supercooled austenite within a cooling rate range of 0.1–30 °C/s. Mechanical properties of the studied steels were determined after standard oil quenching and tempering (at 200–400 °C), as well as after isothermal quenching in the temperature range of lower and upper bainite formation (320 and 400 °C, respectively). It was established that varying the tempering temperature between 200 and 4 00 °C does not significantly affect the overall mechanical property profile of the studied steels. It was shown that the formation of lower bainite yields an increased level of impact toughness (<i>KC</i>V up to 1.48 MJ/m<sup>2</sup>), whereas the formation of upper bainite leads to embrittlement of the steel (<i>KC</i>V approximately 0.50 MJ/m<sup>2</sup>).</p></div>","PeriodicalId":702,"journal":{"name":"Metallurgist","volume":"70 2","pages":"169 - 180"},"PeriodicalIF":0.9,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149250603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Modeling combined casting and rolling-extrusion process for long-scale Al–Mg alloy semi-products doped with rare-earth metals 稀土掺杂铝镁合金长尺寸半成品的铸造与滚挤联合工艺建模
IF 0.9 4区 材料科学
Metallurgist Pub Date : 2026-10-05 DOI: 10.1007/s11015-026-02141-4
S. B. Sidelnikov, A. I. Bezrukikh, E. S. Lopatina, I. L. Konstantinov, A. V. Durnopyanov
{"title":"Modeling combined casting and rolling-extrusion process for long-scale Al–Mg alloy semi-products doped with rare-earth metals","authors":"S. B. Sidelnikov,&nbsp;A. I. Bezrukikh,&nbsp;E. S. Lopatina,&nbsp;I. L. Konstantinov,&nbsp;A. V. Durnopyanov","doi":"10.1007/s11015-026-02141-4","DOIUrl":"10.1007/s11015-026-02141-4","url":null,"abstract":"<div><p>Using the QForm software package to model the combined casting, rolling, and extrusion (CCRE) process, the temperatures, strain rates, and energy-force parameters were determined for the specified deformation and geometric conditions of the existing SP-200 and SP-400 combined processing units. The forces acting on the rolls and the die, the torques on the rolls, and the power required from the drive motors for these units were calculated. A comparison of these values with the permissible limits of the existing equipment demonstrated that the CCRE process can be implemented without overloading the machinery. Furthermore, the modeling data obtained can be used to design and assemble the deformation units for the existing equipment. Using these units, experimental studies were conducted on the production of 9 mm diameter rods from 1580 and 01570 alloys, and pilot batches were produced. The structure and mechanical properties of the resulting rods were investigated. Subsequently, these rods were drawn into welding wire up to 3 mm in diameter, suitable for welding structures in the rocket and space technology industry.</p></div>","PeriodicalId":702,"journal":{"name":"Metallurgist","volume":"70 1","pages":"83 - 94"},"PeriodicalIF":0.9,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149219457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Control of rolling-mill electric drives during asymmetric rolling 非对称轧制过程中轧机电传动的控制
IF 0.9 4区 材料科学
Metallurgist Pub Date : 2026-10-05 DOI: 10.1007/s11015-026-02155-y
Gennadiy P. Kornilov, Aleksandr M. Pesin, Aleksey A. Bochkarev, Leonid V. Nosov, Ilya A. Pesin, Natalya M. Lokotunina, Nikita O. Adushev
{"title":"Control of rolling-mill electric drives during asymmetric rolling","authors":"Gennadiy P. Kornilov,&nbsp;Aleksandr M. Pesin,&nbsp;Aleksey A. Bochkarev,&nbsp;Leonid V. Nosov,&nbsp;Ilya A. Pesin,&nbsp;Natalya M. Lokotunina,&nbsp;Nikita O. Adushev","doi":"10.1007/s11015-026-02155-y","DOIUrl":"10.1007/s11015-026-02155-y","url":null,"abstract":"<div><p>This paper examines the main approaches to designing automatic speed-control systems for individual rolling-mill drives in asymmetric-rolling (ASR) applications. To test whether the system can stabilize strip tension and maintain a prescribed roll-speed mismatch, individual drives of two mill stands were simulated. A distinctive feature of the model is that the static torque is represented by two components: one describes the torque under conventional symmetric rolling, while the other was derived experimentally from operating equipment over a wide range of asymmetry factors. The simulation results show that the main process variables (speed and tension) in a two-stand mill operating under ASR conditions can be stabilized under disturbance inputs.</p></div>","PeriodicalId":702,"journal":{"name":"Metallurgist","volume":"70 2","pages":"224 - 234"},"PeriodicalIF":0.9,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149250600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development and implementation of a spring-steel wire-rod process for rail fastenings and shock-absorber springs 钢轨紧固件和减震器弹簧的弹簧-钢丝-杆工艺的开发和实施
IF 0.9 4区 材料科学
Metallurgist Pub Date : 2026-10-02 DOI: 10.1007/s11015-026-02132-5
Vasily V. Savinkov, Pavel V. Volodkin
{"title":"Development and implementation of a spring-steel wire-rod process for rail fastenings and shock-absorber springs","authors":"Vasily V. Savinkov,&nbsp;Pavel V. Volodkin","doi":"10.1007/s11015-026-02132-5","DOIUrl":"10.1007/s11015-026-02132-5","url":null,"abstract":"<div><p>This paper describes the development and implementation of a process for producing wire rod from 38Si7 spring steel in accordance with DIN EN 10089. The wire rod is intended for manufacturing rail clips used in rail fastenings. The process was tailored to customer specifications to achieve the required product quality and properties. The study established the reheating schedule and the rolling and cooling conditions for 38Si7 wire-rod production. The reported results provide process-level novelty for producing spring-steel wire rod and include efficient conditions for reheating, rolling, two-stage cooling, as well as measures for transportation and storage.</p></div>","PeriodicalId":702,"journal":{"name":"Metallurgist","volume":"70 1","pages":"1 - 8"},"PeriodicalIF":0.9,"publicationDate":"2026-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149219461","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Improving the surface quality of a prototype obtained from VT6 titanium alloy by electric arc surfacing 电弧堆焊提高VT6钛合金样品表面质量
IF 0.9 4区 材料科学
Metallurgist Pub Date : 2026-10-02 DOI: 10.1007/s11015-026-02142-3
S. D. Neulybin, A. N. Yurchenko
{"title":"Improving the surface quality of a prototype obtained from VT6 titanium alloy by electric arc surfacing","authors":"S. D. Neulybin,&nbsp;A. N. Yurchenko","doi":"10.1007/s11015-026-02142-3","DOIUrl":"10.1007/s11015-026-02142-3","url":null,"abstract":"<div><p>The article explores the possibility of improving the surface quality of workpieces produced by additive manufacturing using consumable electrode arc surfacing (wire-arc additive manufacturing, WAAM). A method of additional surface treatment of the obtained workpiece in the form of plasma-arc remelting is proposed. It was established that the process of smoothing the side surface of an additively manufactured sample by remelting using a straight-polarity plasma arc immediately after surfacing allows for a smoother, more even surface without significant protrusions. It was found that remelting results in the formation of zones across the sample cross-section with slightly different α‑phase morphology, while no defects such as pores or cracks were detected. It was shown that the level of microhardness across the entire wall cross-section does not correspond to a single specific value, but rather ranges from 300 to 470 <i>HV</i>, depending on the microstructure dispersion and phase ratio.</p></div>","PeriodicalId":702,"journal":{"name":"Metallurgist","volume":"70 1","pages":"95 - 102"},"PeriodicalIF":0.9,"publicationDate":"2026-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149219439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Intelligent method for detecting rhomboidity in continuously cast billets 连铸坯菱形度的智能检测方法
IF 0.9 4区 材料科学
Metallurgist Pub Date : 2026-10-01 DOI: 10.1007/s11015-026-02136-1
D. A. Poleshchenko, D. E. Nazarov
{"title":"Intelligent method for detecting rhomboidity in continuously cast billets","authors":"D. A. Poleshchenko,&nbsp;D. E. Nazarov","doi":"10.1007/s11015-026-02136-1","DOIUrl":"10.1007/s11015-026-02136-1","url":null,"abstract":"<div><p>Enhancing product quality and reducing costs associated with manufacturing defects and other contingencies are key objectives for the industry. Over the past decade, computer vision and machine learning technologies have become increasingly popular for addressing these challenges. Using this approach to detect billet rhomboidity mitigates equipment wear. The wear occurs because the asymmetry of billets processed in subsequent stages of the technological chain increases the load on rolls and support rollers. Furthermore, the proposed method will facilitate the accumulation of a critical mass of data. This data will enable a more precise determination of the root causes of rhomboidity formation and support more effective countermeasures against these detrimental factors.</p></div>","PeriodicalId":702,"journal":{"name":"Metallurgist","volume":"70 1","pages":"34 - 43"},"PeriodicalIF":0.9,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149219467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Visualization of actual shape change and digitization of aluminum alloy slab rolling 铝合金板坯轧制实际形状变化的可视化与数字化
IF 0.9 4区 材料科学
Metallurgist Pub Date : 2026-10-01 DOI: 10.1007/s11015-026-02140-5
Y. N. Loginov, S. O. Nepryakhin, K. T. Isyakaev
{"title":"Visualization of actual shape change and digitization of aluminum alloy slab rolling","authors":"Y. N. Loginov,&nbsp;S. O. Nepryakhin,&nbsp;K. T. Isyakaev","doi":"10.1007/s11015-026-02140-5","DOIUrl":"10.1007/s11015-026-02140-5","url":null,"abstract":"<div><p>During the actual rolling of aluminum alloy slabs, the ends of the workpieces were observed to develop a curved, concave shape. The radii of curvature of these ends were determined for each rolling pass. Subsequently, the rolling process was simulated using the finite element method. A comparison revealed a discrepancy between the simulated and actual results. It was hypothesized that the porosity of the metal influences the shaping of the ends. The problem was solved using two distinct approaches: the first considered porosity distributed uniformly throughout the entire volume of the ingot, while the second, based on findings from foundry engineering research, assumed porosity localized in discrete layers. The second approach yielded results that were significantly more consistent with the visualization of the actual rolling process.</p></div>","PeriodicalId":702,"journal":{"name":"Metallurgist","volume":"70 1","pages":"75 - 82"},"PeriodicalIF":0.9,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149219459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Radial stress in the billet shell during steel solidification in a cylindrical mold 钢坯在圆柱形结晶器中凝固过程中的径向应力
IF 0.9 4区 材料科学
Metallurgist Pub Date : 2026-10-01 DOI: 10.1007/s11015-026-02135-2
Vyacheslav V. Stulov, Andrey V. Ivanov, Oleg M. Shafiev
{"title":"Radial stress in the billet shell during steel solidification in a cylindrical mold","authors":"Vyacheslav V. Stulov,&nbsp;Andrey V. Ivanov,&nbsp;Oleg M. Shafiev","doi":"10.1007/s11015-026-02135-2","DOIUrl":"10.1007/s11015-026-02135-2","url":null,"abstract":"<div><p>Two continuous-casting molds are compared: mold No. 1 with a copper wall and water cooling and mold No. 2 with a nickel wall and an evaporation-condensation cooling system. We calculate the shell thickness at a casting speed of 3 m/min and the width of the two-phase zone and the temperature drop across the shell thickness in each mold. The temperature drop in mold No. 1 is 8–17% higher than in mold No. 2. Radial stresses are also calculated: they reach 0.77 MPa at the exit of mold No. 1, which is 10.4% higher than for mold No. 2.</p></div>","PeriodicalId":702,"journal":{"name":"Metallurgist","volume":"70 1","pages":"27 - 33"},"PeriodicalIF":0.9,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149219450","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Optimizing coke breeze dosage in ore-fuel briquettes based on the assessment of their softening-melting temperature range and strength 通过对煤型煤软化-熔化温度范围和强度的评价，优化煤型煤中焦炭微风的用量
IF 0.9 4区 材料科学
Metallurgist Pub Date : 2026-10-01 DOI: 10.1007/s11015-026-02146-z
A. M. Bizhanov, I. S. Bersenev
{"title":"Optimizing coke breeze dosage in ore-fuel briquettes based on the assessment of their softening-melting temperature range and strength","authors":"A. M. Bizhanov,&nbsp;I. S. Bersenev","doi":"10.1007/s11015-026-02146-z","DOIUrl":"10.1007/s11015-026-02146-z","url":null,"abstract":"<div><p>We study the effect of coke breeze dosage on the properties of ore-fuel briquettes based on poor iron ore and rich hematite concentrate. The softening-melting temperature range (SMTR) and compressive strength of fired briquettes are determined by the methods of physical modeling. It is shown that the elevation of the fuel dosage over 10% leads to a significant enlargement of the SMTR and to a decrease in compressive strength caused by the intensification of reduction processes and elevation of porosity. For ore briquettes, the optimal dosage is equal to 10%, whereas for the concentrate briquettes, it is as low as 5%. It is shown that the use of finely divided fuel (soot) with a specific surface area larger than 0.01 m<sup>2</sup>/g leads to a sharp decrease in the level of strength after heat treatment. We also formulate recommendations concerning the limitation of dosage and the size of fuel particles in briquettes for blast-furnace smelting.</p></div>","PeriodicalId":702,"journal":{"name":"Metallurgist","volume":"70 1","pages":"140 - 148"},"PeriodicalIF":0.9,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149219468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hybrid model for calculating setup parameters in the piercing process for continuously cast ingots 计算连铸钢锭穿孔过程中设置参数的混合模型
IF 0.9 4区 材料科学
Metallurgist Pub Date : 2026-09-29 DOI: 10.1007/s11015-026-02128-1
I. Yu. Pyshmintsev, A. A. Korsakov, D. V. Mikhalkin, E. A. Shkuratov, E. R. Guseynov, K. P. Pyankov, O. A. Panasenko
{"title":"Hybrid model for calculating setup parameters in the piercing process for continuously cast ingots","authors":"I. Yu. Pyshmintsev,&nbsp;A. A. Korsakov,&nbsp;D. V. Mikhalkin,&nbsp;E. A. Shkuratov,&nbsp;E. R. Guseynov,&nbsp;K. P. Pyankov,&nbsp;O. A. Panasenko","doi":"10.1007/s11015-026-02128-1","DOIUrl":"10.1007/s11015-026-02128-1","url":null,"abstract":"<div><p>The need for mathematical models that ensure high accuracy in calculating the setup parameters of key mill units is increasing in the context of digital transformation in tube rolling and the active implementation of digital twin technologies. Describing the geometry of the deformation zone in helical rolling piercing mills is particularly challenging because the roll profile becomes distorted through rotation via the feed and spread angles. This paper presents a hybrid model combining an analytical roll profile description with a machine vision-based automated system to monitor shell geometric parameters. Implementing the model in a software package allows for the automated, real-time determination of shell length and diameter. It also enables the generation of recommendations for adjusting setup parameters. This approach improves the precision and stability of the piercing process, reduces technological errors, and paves the way for integrating adaptive control systems into continuous rolling lines.</p></div>","PeriodicalId":702,"journal":{"name":"Metallurgist","volume":"69 12","pages":"1986 - 1995"},"PeriodicalIF":0.9,"publicationDate":"2026-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149176834","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","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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