Open Access Conference Proceedings

Abstract: Although CoCrFeNi high-entropy alloy (HEA) exhibits excellent ductility due to its face-centered cubic (FCC) crystal structure, its relatively low strength limits its applicability in certain industrial applications. To enhance its bulk mechanical performance, alloying additions can be introduced, while various surface modification techniques can be employed to improve its surface properties. [..] Read more

Abstract: Electromagnetic interference (EMI) poses a significant threat to the operational stability and reliability of modern electronic and communication systems. The increasing integration density of electronic components, particularly in aerospace, defense, and portable technologies, necessitates the development of lightweight, mechanically robust, and highly efficient shielding materials as alternatives to conventional bulk metals. In this study, three-dimensional (3D) printed Polylactic Acid (PLA) and Polyethylene Terephthalate Glycol (PETG) polymers were metallized via an electroless plating process to enhance their electromagnetic shielding effectiveness (SE). [..] Read more

Abstract: The work reviews phase evolution, mechanical, electrical, thermal and tribological properties of NbMoTaW100-z(CN)z coatings deposited using reactive DC magnetron co-sputtering. The concentrations of the metals were not equimolar, therefore, the resulting material was attributed to the compositionally complex compounds instead of high-entropy stabilized ceramics. [..] Read more

Abstract: Thermal energy storage (TES) systems used in industrial applications, such as power plants, must store large amounts of thermal energy. Meeting demands for high heat capacity, low thermal diffusivity, and structural stability at elevated temperatures requires selecting optimal nanostructures. [..] Read more

Abstract: Bioresorbable metallic alloys represent a significant advancement in the development of temporary biomedical implants, offering a favorable balance between biocompatibility and controlled degradation. This study investigates the impact of a two-step equal-channel angular pressing (ECAP) processing route on the performance of a promising biodegradable alloy. [..] Read more

Abstract: This study deals with the development and characterization of FeSi–NiAl based composite materials, consisting of NiAl matrix and FeSi hardening phase, representing a new generation of tool materials. These composites can compete with conventional materials, such as cemented carbides and high-speed steels, which contain tungsten and cobalt – raw materials classified as critical by the European Union and economically burdened by the current geopolitical situation. [..] Read more

Abstract: High purity 1xxx series aluminum alloys are widely valued for their excellent physical properties; however, they exhibit limited thermal stability. In this study, an experimental EN AW 1050 alloy microalloyed with Zr was produced by continuous casting and subsequently subjected to hot rolling, cold rolling, and annealing. [..] Read more

Abstract: This study reports on the characterization and synthesis of the 2D carbon-based materials. In here, Ti, Si and graphite are used as starting materials. [..] Read more

Abstract: The LaNi5 compound is a prototypical hydrogen-storage material intended for future energy applications. Some of its properties have not been sufficiently studied so far and some critically important data is missing. [..] Read more

Abstract: This study examines the efficacy of hydrogen in reducing iron compounds found in dust emissions during the electric arc furnace (EAF) steelmaking processes at "Uzbeksteel" JSC (Uzbekistan). EAF dust is a fine secondary material composed of 30 to 60 percent iron oxides (Fe2O3, Fe3O4, FeO). [..] Read more

Abstract: The intermetallic phase LaNi5 is known as a material for reversible hydrogen storage due to its suitable thermodynamic properties, and relatively fast kinetics of hydrogen absorption and desorption with the formation of LaNi5H6 hydride. This work focuses on the synthesis and characterization of a modified LaNi5 phase with the addition of indium. [..] Read more

Abstract: Additive manufacturing (AM) has introduced a practical route to fabricate complex, patient-specific metallic implants with controlled architectures that are difficult to achieve through conventional processing. Titanium alloys, in particular, remain central to biomedical applications because they combine high specific strength, corrosion resistance, and biological compatibility. [..] Read more

Abstract: A composite chiller consisting of graphite foam infiltrated with pure zinc as a phase change material (PCM) and enclosed within a steel container was used to enhance heat transfer and accelerate the solidification of an Al-4.5 wt% Cu alloy. Cooling performance was evaluated using numerical simulation based on temperature-time diagrams, along with calculations of thermal gradient (G) and growth rate of the solidification front (R). [..] Read more

Abstract: The Ausmelt pyrometallurgical process is efficient, environmentally friendly and flexible for processing a wide range of non-ferrous metal concentrates and secondary raw materials. The pursuit of environmentally friendly technologies and the increased possibilities for processing a wide range of concentrates and various secondary materials have made this technological process the main one for lead smelting in recent decades.The model scheme used is that of KCM-AD, Plovdiv, Bulgaria - a major lead producer for Southeastern Europe. [..] Read more

Abstract: This study investigates the microstructural design and mechanical performance of biodegradable Zn-Ag-Mg materials with a pseudo-harmonic architecture fabricated via powder metallurgy. The microstructure consists of a ductile coarse-grained pure Zn core surrounded by a continuous three-dimensional network of a fine-grained Zn-3Ag-1Mg (wt%) alloy skeleton. [..] Read more

Abstract: Calcium carbide (CaC₂) is a vital industrial chemical, central to acetylene production, metallurgy, and chemical synthesis. South Africa, leveraging its coal reserves and metallurgical expertise, has recently entered the global market as a calcium carbide producer. [..] Read more

Abstract: This study presents 'WeldTrack: Smart Guidance System,' developed to minimize operator-induced errors in manual laser welding operations and to protect device longevity against the risk of 'back-reflection,' a critical issue particularly in highly reflective metals such as AISI 304 stainless steel. The system architecture consists of two main units communicating via Wi-Fi. [..] Read more

Abstract: Fayalitic copper slag (CS) from the reverberatory furnaces is an abundant metallurgical by-product containing trace amounts of critical elements such as germanium (Ge). This study investigates the integration of bioleaching and chemical leaching approach to recover Ge combining the micro-organism of Bacillus subtilis pretreatment with selective oxalic acid leaching in the presence of Hydrogen peroxide (H2O2). [..] Read more

Abstract: Generic coke for carbothermic reduction has become for decades a global threat to the environment. Studies on mass losses during carbothermic reduction using generic coke has been largely investigated for different types of manganese ore. [..] Read more

Abstract: Energy analyses in the metallurgical sector traditionally focus on upstream processes such as steelmaking and refining. However, when energy consumption is evaluated at the level of individual products, downstream manufacturing stages can represent a significant share of the total energy demand. [..] Read more