Metallurgist最新文献

Parametric analysis for supervisory control of cathode copper production 阴极铜生产监控的参数分析

IF 0.8 4区材料科学

Metallurgist Pub Date : 2025-08-07 DOI: 10.1007/s11015-025-01978-5

Olga K. Mansurova, Huy H. Nguen

引用次数: 0

Effect of roller table level on vertical bending of the leading edge in asymmetric thick-plate rolling: A finite element analysis 不对称厚板轧制中辊台水平对前缘垂直弯曲的影响：有限元分析

IF 0.8 4区材料科学

Metallurgist Pub Date : 2025-08-07 DOI: 10.1007/s11015-025-01979-4

Denis N. Chikishev, Eduard M. Golubchik, Alexander S. Tselishchev, Alexey V. Yaroslavtsev

{"title":"Effect of roller table level on vertical bending of the leading edge in asymmetric thick-plate rolling: A finite element analysis","authors":"Denis N. Chikishev, Eduard M. Golubchik, Alexander S. Tselishchev, Alexey V. Yaroslavtsev","doi":"10.1007/s11015-025-01979-4","DOIUrl":"10.1007/s11015-025-01979-4","url":null,"abstract":"<div>The influence of the roller table level on the vertical bending of the leading edge during asymmetric thick-plate rolling has been investigated using finite-element modeling. The study demonstrates that a mismatch in the rotational speeds of the work rolls can produce inconsistent deformation patterns, causing the strip to bend toward either the slower or the faster roll. A finite-element model developed in the Deform software was employed to simulate the bending behavior of K60-grade pipe steel strips under various asymmetry conditions. The results show that for strip thicknesses of 25–50 mm, a mismatch between the roller table level and the rolling line leads to upward bending of the leading edge. This effect is amplified when the lower roll rotates faster than the upper roll and the reduction is below a critical threshold. To mitigate vertical bending, intentional counterbending can be induced by adjusting roll speed asymmetry. In doing so, it is necessary to account for the critical reduction or the deformation zone shape factor, defined as the ratio of the deformation zone length to the average strip thickness.</div>","PeriodicalId":702,"journal":{"name":"Metallurgist","volume":"69 4","pages":"607 - 613"},"PeriodicalIF":0.8,"publicationDate":"2025-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145196153","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

A survey of the experience in the physical modeling of the processes of production of high permeability steel and its implementation at the NLMK 高渗透性钢生产过程的物理建模及其在NLMK实施的经验调查

IF 0.8 4区材料科学

Metallurgist Pub Date : 2025-08-04 DOI: 10.1007/s11015-025-01950-3

D. A. Ringinen, I. T. Spitsberg

引用次数: 0

Technology for producing monodisperse spherical granules 单分散球形颗粒的生产技术

IF 0.8 4区材料科学

Metallurgist Pub Date : 2025-08-04 DOI: 10.1007/s11015-025-01966-9

V. B. Ankudinov, Yu. A. Marukhin, V. P. Ogorodnikov, V. A. Ryzhkov

引用次数: 0

Selective laser melting of aluminum-based composites: challenges and prospects 铝基复合材料的选择性激光熔化：挑战与展望

IF 0.8 4区材料科学

Metallurgist Pub Date : 2025-08-04 DOI: 10.1007/s11015-025-01971-y

M. V. Lyange, B. O. Zotov, L. V. Fedorenko, V. Yu. Egorov, S. V. Chernyshikhin

{"title":"Selective laser melting of aluminum-based composites: challenges and prospects","authors":"M. V. Lyange, B. O. Zotov, L. V. Fedorenko, V. Yu. Egorov, S. V. Chernyshikhin","doi":"10.1007/s11015-025-01971-y","DOIUrl":"10.1007/s11015-025-01971-y","url":null,"abstract":"<div>Synthesis of composite materials by the method of selective laser melting based on a metal matrix with improved properties is actual and extensively developed direction of scientific research. The development of aluminum-matrix composites and their adaptation to the technology of selective laser melting requires taking into account numerous critical factors, such as the composition of the composite, the method used for the preparation of the source powder material, conditions of synthesis, etc. In the present work, we analyze the role played by the main factors in the development and synthesis of aluminum-matrix composites, the processes running in the melt pool during synthesis, and the key problems and tasks encountered in this field. On the basis of the deep analysis of data available from the literature, we determine the main trends in the subsequent development of the procedure of synthesis of aluminum-matrix composites by the method of selective laser melting, among which we can mention the development of aluminum-matrix composites accompanied by the formation of new phases as a result of the in situ reactions in the melt pool, computer simulation of the process of synthesis of aluminum-matrix composites, and the implementation of the in situ control over the process of melting by using various methods with a possibility of affecting the conditions of synthesis by using the accumulated data. We also formulate the tasks and fields of scientific investigations that require solutions and further efforts of the scientific community aimed at improving the properties of the aluminum-matrix composites.</div>","PeriodicalId":702,"journal":{"name":"Metallurgist","volume":"69 4","pages":"541 - 551"},"PeriodicalIF":0.8,"publicationDate":"2025-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145196184","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

Effect of deformation processing on mechanical properties and fracture resistance of low carbon martensitic steel 变形处理对低碳马氏体钢力学性能和抗断裂性能的影响

IF 0.8 4区材料科学

Metallurgist Pub Date : 2025-08-04 DOI: 10.1007/s11015-025-01973-w

G. Yu. Romanovskiy, G. A. Filippov, O. N. Chevskaya, A. R. Mishetyan, V. G. Filippov

引用次数: 0

Investigation of aspects of compensation for thermal expansion of 3D gradient materials Al–Al2O3 using “cold” spraying technology 三维梯度材料Al-Al2O3热膨胀补偿的“冷”喷涂技术研究

IF 0.8 4区材料科学

Metallurgist Pub Date : 2025-08-04 DOI: 10.1007/s11015-025-01968-7

E. Yu. Gerashchenkova, M. A. Markov, D. A. Gerashchenkov, R. Yu. Bystrov, A. D. Bykova, A. D. Kashtanov

引用次数: 0

Influence of structural characteristics of low-alloy steels on their corrosion resistance in aqueous environments 低合金钢的组织特性对其耐水性的影响

IF 0.8 4区材料科学

Metallurgist Pub Date : 2025-08-04 DOI: 10.1007/s11015-025-01953-0

A. V. Amezhnov

引用次数: 0

Impurity behavior in low-temperature sintering products of ironmaking dust in the presence of ammonium chloride 氯化铵存在下炼铁粉尘低温烧结产物中的杂质行为

IF 0.8 4区材料科学

Metallurgist Pub Date : 2025-08-04 DOI: 10.1007/s11015-025-01975-8

G. M. Koishina, E. E. Zholdasbay, A. A. Argyn, I. N. Nursainov, N. K. Dosmukhamedov

{"title":"Impurity behavior in low-temperature sintering products of ironmaking dust in the presence of ammonium chloride","authors":"G. M. Koishina, E. E. Zholdasbay, A. A. Argyn, I. N. Nursainov, N. K. Dosmukhamedov","doi":"10.1007/s11015-025-01975-8","DOIUrl":"10.1007/s11015-025-01975-8","url":null,"abstract":"<div>In this study, the elemental composition of dust from the melting of scrap metal in an electric arc furnace was analyzed using an X‑ray fluorescence energy dispersive spectrometer (RLP-21) to determine the concentrations of impurities at their lower detection limits. A wide range of impurities was identified in the dust: Cu, Fe, Ti, Cr, Ni, Cd, Mn, Sn, Si, Ca, K, S, Cl. Using the Olympus BX51 microscope, new data on the forms of impurities in dust have been obtained. It was shown that impurities in the dust are present in the form of oxides. Based on the new results, a thermodynamic analysis of the reactions between dust components and ammonium chloride under low-temperature sintering conditions (573–1073 K) was performed. It was found that almost all impurities, except chromium, concentrate in the clinker as solid oxides during the sintering process. A high potential for the removal of titanium and tin as gaseous chlorides in the vapor phase was identified. Laboratory experiments were conducted on sintering dust with NH4Cl under optimal process conditions (temperature—773 K, NH4Cl consumption—1.5 times the stoichiometric amount required for lead chlorination, sintering time—60 min). Based on these experiments, the quantitative proportions of impurities in the resulting clinker were determined. It was found that during sintering tin and titanium are volatilized in significant amounts (more than 30% of their total content in the initial dust). The results obtained are fundamental for the development of selective lead extraction technology from dust. They will be used to develop an integrated chlorination process for the treatment of ironmaking dust with selective recovery of valuable metals into marketable products.</div>","PeriodicalId":702,"journal":{"name":"Metallurgist","volume":"69 4","pages":"578 - 585"},"PeriodicalIF":0.8,"publicationDate":"2025-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145196165","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

Effect of iron and silicon impurities on the phase composition and hardening of Al-0.3Zr-REM (REM = Er, Y, Yb, Gd) alloy ingots during annealing 铁和硅杂质对Al-0.3Zr-REM （REM = Er， Y, Yb, Gd）合金铸锭退火过程中相组成和硬化的影响

IF 0.8 4区材料科学

Metallurgist Pub Date : 2025-08-04 DOI: 10.1007/s11015-025-01965-w

L. E. Gorlov, A. O. Mosleh, M. V. Glavatskikh, R. Yu. Barkov, A. V. Pozdniakov

{"title":"Effect of iron and silicon impurities on the phase composition and hardening of Al-0.3Zr-REM (REM = Er, Y, Yb, Gd) alloy ingots during annealing","authors":"L. E. Gorlov, A. O. Mosleh, M. V. Glavatskikh, R. Yu. Barkov, A. V. Pozdniakov","doi":"10.1007/s11015-025-01965-w","DOIUrl":"10.1007/s11015-025-01965-w","url":null,"abstract":"<div>The effect of iron and silicon impurities on the phase composition and hardening of Al‑0.3Zr-REM (REM = Er, Y, Yb or Gd) alloy ingots during annealing was studied. The Al3Fe phase was observed in the Al‑0.3Zr alloy with impurities content less than 0.01%. Alloying of the Al‑0.3Zr alloy with REMs leads to the formation of (Al, Fe)3REM phases. The Al3Fe and Al8Fe2Si phases were formed in the Al‑0.3Zr‑0.5Fe‑0.5Si alloy. The Al10Fe2Er and Al10Fe2Y phases, as well as the Al3Er2Si2 and Al2Si2Y phases, were crystallized instead of the Al3Fe phase after Er or Y addition. The Al2Si2Yb or Al2Si2Gd phases with dissolved Fe were present in alloys with Yb or Gd. Iron and silicon impurities lead to a significant boost in hardness increase in all studied compositions during annealing at 400 and 440 °C. Hardening begins as early as 0.5 h into the annealing process and reaches its maximum after 8–11 h. The greatest hardening was achieved after annealing at 400 °C in alloys with erbium and ytterbium. High hardness after annealing of alloy ingots with impurities due to hardening by dispersoids and low silicon content in (Al) makes them promising candidates for creating current conductors characterized by high strength, thermal stability and electrical conductivity.</div>","PeriodicalId":702,"journal":{"name":"Metallurgist","volume":"69 4","pages":"488 - 496"},"PeriodicalIF":0.8,"publicationDate":"2025-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145196151","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