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Formation of fine-grained structure and superplasticity in commercial aluminum alloy 1545ch
Metal Science and Heat Treatment. 2017. Vol. 58. No. 9. P. 543–547.
Kishchik M. S., Mikhailovskaya A. V., Levchenko V. S., Kotov A., Drits A. M., Portnoy V. K.
A proсеss for fabriсating 5.mm-thiсk shеets from alloy l565сh with rеcrystallized grains lеss than l0 µm in sizе is dеvеlopеd, whiсh involvеs supеrplastiс forming and providеs еlеvatеd mесhaniсal propеrtiеs at room tеmpеratuге.Тhе paramеtеrs of supеrplastiсitу and thе mесhaniсal propеrtiеs of alloy l565сh arе dеtегminеd. Tеst forming оf a domе-shapе modеl part is pеrformеd.
Research target:
Construction
Mechanics and Mechanical Engineering
Effective Natural Resource Management
Priority areas:
engineering science
Language:
English
Viacheslav K., Русский инженер 2024 № 3 С. 34–37
Analysis of various methods referred to the increasing energy efficiency and movement safety through the use of
control systems which take into account the force factors of interaction of the wheel propeller with the supporting surface. During
the analysis of methods dedicated to energy efficiency rise and were used techniques of logical and statistical analysis. There are
various ...
Added: May 19, 2026
Гущина В. А., / Series chemrxiv-2023-vpzhz-v2 "ChemRxiv". 2023.
All-inorganic perovskite CsPbBr3 and Cs4PbBr6 nanoparticles are being intensively studied due to their unique properties and wide range of applications; however, however, the nature of their optical properties is not yet fully understood due to the difficulty of synthesis of singlephase nanoparticles. In this article we describe the features of the synthesis of single-phase particles ...
Added: May 14, 2026
Садртдинова Г. И., Vinogradov A., Nifantiev I. et al., Polymer 2025 Vol. 339 Article 129133
Isotactic copolymerization of but-1-ene with bio-based undec-10-en-1-ol (M1), dec-9-en-1-ol (M2) and their silyl esters (M3–M5), catalyzed by C1-symmetric ansa-heterocene [Me2Si(η5-2,4,7-trimethelinden-1-yl)(η5-2,5-dimethyl-7H-cyclopenta[1,2-b:4,3-b']dithiophen-7-yl)]ZrCl2 (Zr1), activated by iBu3Al and MMAO-12, was explored for the first time. At [AlMMAO]/[Zr1] = 40 and [Monomer]/[Zr1] = 5,000, iBu2Al-protected ω-alken-1-ols have demonstrated highest activities and up to 16.7 mol% degrees of the comonomer incorporation with a formation of ...
Added: May 12, 2026
Ermolin I., Suvorkov P., Conservation Biology 2026 No. e70300 P. 1–10
Illegal, unreported, and unregulated (IUU) fishing driven by artisanal small-scale fisheries is a critical threat to global biodiversity and is exemplified by the commercial extinction of Caspian sturgeons (Acipenser and Huso). A key knowledge gap persists regarding the scale and behavioral dynamics of these operations.We tested the hypothesis that persistent high-volume sturgeon poaching is sustained ...
Added: April 25, 2026
Ершов И. А., Системная инженерия и инфокоммуникации 2025 № 4 С. 11–14
The heat consumption of residential buildings is a stochastic series. It is necessary for the design of thermal energy regulators the creation of a neural network model. In the paper, the model is carried out based on Long Short-Term Memory (LSTM). The high accuracy of reproducing the series was achieved by training the model on ...
Added: April 22, 2026
Pilé I., Deng Y., Shchur L., / Series arXiv "math". 2026. No. 2604.10254.
We investigate the spatial overlap of successive spin configurations in Markov chain Monte Carlo simulations using the local Metropolis algorithm and the Svendsen-Wang and Wolff cluster algorithms. We examine the dynamics of these algorithms for two models in different universality classes: the Ising model and the Potts model with three components. The overlap of two ...
Added: April 20, 2026
Enchilik P. R., G.V.Klink, Semenkov I. N., Science of the Total Environment 2025 Vol. 998 Article 180219
Natural regeneration of forest soils affected by agricultural practices is a common phenomenon in many regions worldwide, particularly in boreal ecosystems. Affecting soil quality, the partitioning of extractable fractions of heavy metals and metalloids (HMMs) is not studied during natural regeneration. The following stages of natural regeneration after plowing have been identified in the Smolenskoye ...
Added: April 19, 2026
Левенков Я. Ю., Чичекин И. В., Вдовин Д. С. et al., Труды НАМИ 2025 № 1 (300) С. 17–30
Введение (постановка задачи и актуальность). В настоящее время широкое распространение получило использование автономных мобильных беспилотных транспортно-технологических средств (БТТС) при выполнении работ в зонах с вредными и опасными факторами. Также данные машины могут быть использованы для выполнения поисково-спасательных работ, доставки грузов в труднодоступные районы и иных подобных задач. Поэтому к таким БТТС предъявляются повышенные требования к ...
Added: April 16, 2026
Barut A., Proskuryakova L. N., Yakutkina V. et al., Renewable Energy 2026 Vol. 267 Article 125736
The global demand for rare earth metals (REM) has exceeded the global supply, exacerbating the deficit of these resources for wind turbines, solar panels, electric vehicles, and nuclear reactors. The largest REM exporting and importing countries have the power to influence energy transition in their own countries and around the world. This study analyzes the ...
Added: April 8, 2026
S. S. Bricheva, P. M. Shilov, Yurchenko A. P. et al., Eurasian Soil Science 2025 Vol. 58 Article 74
The high variability of properties in urban soils and the abundance of anthropogenic inclusions that interfere with the propagation of electromagnetic fields are the reasons why they are seldom studied by geophysics. At the same time, geophysics is an efficient and fast way to diagnose soil structure and dynamics without affecting the functioning of the ...
Added: March 26, 2026
Беляев Н. Д., Лебедев В. В., Нуднер И. С. et al., Гидротехническое строительство 2025 № 11 С. 50–58
This paper presents a description of the experimental methodology and the results of experiments on the physical modeling of the interaction of long tsunami-type waves with an anchored structure. The forces in the mooring system connections under wave action are assessed. The obtained results are analyzed. Conclusions are drawn regarding the nature of the force ...
Added: March 25, 2026
Карцев А. И., Physics of Metals and Metallography 2025 Vol. 125 No. 14 P. 1935–1939
The problem of the maximum oscillation frequency of composite bimetallic microactuators excited by thermal pulses has been theoretically investigated. Both traditional bimetallic composites made of metals and alloys with different coefficients of thermal expansion and composites in which one of the layers is made of a mechanically pre-stressed shape memory alloy (SMA) and the other ...
Added: March 16, 2026
Mikolaenko V., Конюшенко М. Н., Стулков Л. Д., Механическое оборудование металлургических заводов 2025 № 2(25) С. 23–30
Uniaxial tensile testing of flat specimens under superplastic conditions is widely used to determine the deformation behavior of materials. However, the standard interpretation of the results relies on the hypothesis of an ideal uniaxial stress state and often fails to account for the influence of specimen geometry and material flow from the gripping zones to ...
Added: March 5, 2026
Zhavoronok E. S., Lenkova K. A., Matrenina A. V. et al., Protection of Metals and Physical Chemistry of Surfaces 2025 Vol. 61 No. 5 P. 1231–1238
This study investigated two groups of surgical suture materials—nonabsorbable (polyethylene terephthalate,
polyamide, and silk) and absorbable (glycolic/lactic acid copolymer)—before and after accelerated aging. The analysis employed tensile strength testing, Fourier-transform infrared (FTIR) spectroscopy, and differential scanning calorimetry (DSC). Following domestic and international standards for polymer aging, the samples were subjected to the following initial accelerated aging ...
Added: February 19, 2026
Легонькова О. А., Стаффорд В. В., Винокурова Т. И. et al., Физикохимия поверхности и защита материалов 2025 Т. 61 № 2 С. 196–206
Проведены обобщающие сравнительные исследования по изменению поверхностных, физико-механических свойств биорезорбируемых нитей in vitro и in vivo, реакции тканей на использование шовных материалов с разными сроками биодеструкции: сополимер лактида с гликолидом (ПГЛ), полидоксанон (ПДО), сополимер гликолида и ε-капролактона (ПГК). Определена причина возникновения возможной воспалительной реакции тканей. Процесс биодеструкции для всех нитей начинается с поверхности, сопровождается “выщелачиванием” ...
Added: February 19, 2026
Rumyantsev M. S., Kalagaev I. Y., I. N. Senchikhin, Macromolecules 2025 Vol. 58 No. 5 P. 2574–2588
The search for chemical and technological solutions to process cheap and available elemental sulfur to produce valuable multifunctional materials is one of the current challenging tasks. Instead of extensively used low-molecular-weight monomers, we proposed to use the original reactive polyalkylene sulfide resin as an alternative reagent containing pendant methacrylic groups. The use of a reactive ...
Added: February 19, 2026
Yasnitsky L., Голдобин М. А., Мезенцев А. С., Прикладная математика и вопросы управления 2025 № 2 С. 99–116
Представлен обзор современных методов и основанных на них программных
инструментах, применяемых для математического моделирования серийных производственных процессов с целью снижения брака и повышения качества производимых изделий. Перечисляются группы работ, нацеленных на обнаружение и классификацию дефектов, работ, в которых решаются задачи прогнозирования образования дефектов и определения значимости параметров, работ направленных на поиск
оптимального сочетания технологических параметров изготовления изделий, ...
Added: February 15, 2026
Dregulo A., Environmental Science and Pollution Research 2026 Vol. 33 No. 8 P. 3252–3265
The present study focuses on greenhouse gas emissions from wastewater treatment and sewage sludge disposal at landfill. Traces of ammonium, dihydrosulfide, phenol, formaldehyde, various hydrocarbons, and mercaptans have been identified. The dynamics of these gases are especially intense during the purification process from grids to aerotanks. Methane concentrations fluctuated more than sixfold in the wastewater ...
Added: February 10, 2026
Chernyshov D., Satanin A., Shchur L., / Series arXiv "math". 2025.
We investigate the boundary separating regular and chaotic dynamics in the generalized Chirikov map, an extension of the standard map with phase-shifted secondary kicks. Lyapunov maps were computed across the parameter space (K,K(α, τ)) and used to train a convolutional neural network (ResNet18) for binary classification of dynamical regimes. The model reproduces the known critical ...
Added: November 21, 2025
Сысоэв, Э., Bashirov I., Sychov M. et al., ACS Applied Materials & Interfaces 2025 Vol. 17 No. 22 P. 33108 – 33120
Added: November 12, 2025
Gleb Vaganov, Didenko A., Popova E. et al., Polymer Engineering and Science 2025 Vol. 65 No. 8 P. 4314–4322
This study investigates the correlation between the molecular weight of semicrystalline polyimide and the properties of injec-tion moldings based on it. It was found that the degree of crystallinity can be increased by annealing of molding. The molecularweight of polyimide materials directly influences their glass transition temperature. An increase in molecular weight leads toa decrease ...
Added: September 15, 2025
Nechvoglod O., Ostovari Moghaddam A., Pratskova S. et al., The Minerals, Metals & Materials Society 2025 Vol. 77 P. 1005–1028
This work provides an overview on the fabrication process, composition and properties of high-entropy alloy (HEA) coatings fabricated by electrodeposition. Special attention is paid to the effect of electrodeposition parameters and electrolyte composition on the microstructure, morphology, and mechanical/functional properties of the HEA coatings. It is demonstrated that the majority of researches has been focused ...
Added: June 10, 2025
Naseri M., Reihanian M., Ostovari Moghaddam A. et al., Journal of Materials Research and Technology 2023 Vol. 26 P. 6794–6806
Increasing the strength of metallic multilayered composites fabricated through accumulative roll bonding (ARB) is typically accompanied by a sacrifice in ductility. In the current work, we propose a strategy to achieve microstructural refinement and outstanding strength-ductility synergy in Al/Brass composites. Here, the aluminum matrix exhibits a bimodal grain distribution, consisting of fine equiaxed grains with ...
Added: February 18, 2025
Ostovari Moghaddam A., Fereidonnejad R., Cabot A., Journal of Alloys and Compounds 2023 Vol. 960 Article 170802
Intermetallic compounds (ICs) have been actively investigated since the early twentieth century due to their high strength, especially at high temperatures, as well as a variety of other complex features. However, lack of ductility at ambient temperature has continually hampered their practical applications. In recent years, the concept of entropy stabilization in multicomponent materials or ...
Added: February 18, 2025