Open Access Conference Proceedings

Abstract: The identification of the wear mechanism of the refractory lining of the basic oxygen furnace is a prerequisite for the optimization of the steelmaking process. Knowledge of the way in which a given factor acts on the amortization of the refractory lining is closely related to the development of technological procedures serving to limit their influence. [..] Read more

Abstract: During High Carbon ferromanganese production, the slag formation plays an important role on the overall process. Though the slag formation starts in the prereduction zone, silica may be reduced depending on the reducing conditions. [..] Read more

Abstract: Considerable amounts of dust are generated as by-product in electric arc furnace (EAF) steel production. Dry off-gas de-dusting systems, usually dust filters are used to collect these dusts from the off-gas. [..] Read more

Abstract: The influence of sulfur on both slag and melt is very important in steelmaking. This is especially true for high-sulfur machining steels. [..] Read more

Abstract: Recycled Al-Si alloys are an important raw material for sustainable and green production due to their low energy consumption. However, various impurity elements, such as Bi, coming from the scraps or recycling process can deteriorate the mechanical properties of the final product. [..] Read more

Abstract: The process of obtaining ferrovanadium by the electro-aluminothermic process has been studied. This process involves reducing vanadium oxide with aluminum in a slag layer in an electric furnace, using iron additions to achieve a desired alloy composition and lime to flux alumina. [..] Read more

Abstract: The purpose of the research in hot metal desulfurization process is to identify the main process parameters affecting the final effect of desulfurization. Therefore, the measurable effect of the actions taken should be the improvement of the quality of control. [..] Read more

Abstract: The presented research was focused to optimize the conditions in a T-shaped three-strand tundish to minimize the intermix zone during steel casting. The intermix zone occurs when different steel grades are cast in a single sequence without interruptions or restarts, resulting in mixing of old and new steel grades in the tundish and the continuous cast billet. [..] Read more

Abstract: Small punch test is an advantageous method for evaluation of mechanical properties of components especially in cases, where it is technically difficult or even impossible to obtain enough bulk material for standard tests. Therefore, the method is very well applicable in power industry, for example in residual lifetime assessment of critical parts of components and structures after long-term operation. [..] Read more

Abstract: Hybrid components are made by combining two or more different materials and used in applications where monolithic components are not suitable due to their limited functionality or performance. Combining steel and aluminium in a technical component for power transmission provides the advantages of locally improved strength and reduced weight. [..] Read more

Abstract: By cold forming metastable austenitic steels below 0 °C, the strength is increased significantly through martensite phase transformation in addition to strain hardening. This deformation-induced effect enables the use of corrosion-resistant materials for highly loaded applications such as bearings under oxidative atmospheres, where the use of conventional corrosion-prone steels is unsuitable. [..] Read more

Abstract: Copper is a very popular electro-conductive material, however, the mechanical properties of pure Cu are low. They can be typically improved by (micro)alloying, or via structure modifications introduced by optimized deformation and thermomechanical treatments. [..] Read more

Abstract: The AISI 316L stainless steel is one of the most used 3D printed powder materials due to its good properties. It goes without saying that the properties of the 3D printed steel are naturally less or more different compared to the material which was prepared conventionally. [..] Read more

Abstract: Hot forging processes are influenced by numerous thermo-mechanical-metallurgical material phenomena, which interact strongly. In particular, the strains due to transformation-induced plasticity (TRIP) occurring during the forming process have a considerable influence on the distortion and residual stresses of the components. [..] Read more

Abstract: During recrystallisation annealing after cold forming, it has been repeatedly observed that there is a critical range of strains beyond which enormous coarsening of the statically recrystallized grain occurs. It can be assumed that similar behaviour can also be expected during hot rolling with static recrystallisation (SRX) between passes, especially in the first passes at the highest temperatures. [..] Read more

Abstract: One of the most important parameters used for qualitative evaluation of lubricants in cold drawing of steel wires is the coefficient of friction. Its magnitude cannot be determined directly, but it can be determined from the measured total drawing force (TDF) or total drawing torque (TDT). [..] Read more

Abstract: Nondestructive testing is an important part of any production process that is required to ensure the quality of materials and parts. The development of reliable nondestructive testing (NDT) methods applicable to novel materials and manufacturing processes such as additive manufacturing is a challenging task because of the complex geometry and anisotropic material properties. [..] Read more

Abstract: In this work, the dynamic material modelling (DMM) is employed to identify the hot working window that is suitable for hot processing of Duplex stainless steel 2205 (DSS). The Gleeble 1500 thermo-mechanical simulator was used to conduct the investigation, where several hot compression tests were conducted at a temperature range of 850 - 1050 °C and strain rates of 0.001s-1 - 5s-1. [..] Read more

Abstract: During the operation of the axle, the load acting on the axle housing in the vertical direction has a significant effect on the fatigue life of the components. Cracks are caused by a constant stress concentration in the axle housing, resulting in fatigue at the concentration point. [..] Read more

Abstract: Weld microstructure depends on the characteristics of welded materials and parameters of welding technology, especially on the heat input that determines the peak temperature and the cooling rate. When the coated sheets are welded, the effect of the chemical composition of the coating must be also considered even though its thickness is only a few tens of microns. [..] Read more