Open Access Conference Proceedings

Abstract: Microwave Plasma Enhanced Chemical Vapor Deposition (MWPECVD) is widely used for the growth and the study of synthetic doped diamond and its electronic and electrochemical applications. Recent results show the possible enhancement of dopant incorporation in diamond using pulsed gas injection in the reactor. [..] Read more

Abstract: We examine the validity of assumptions commonly used for the analysis of bonds (bond fractions) in amorphous W-B-C systems by a deconvolution procedure applied on measured XPS profiles. We focus on the relationship between the chemical shift of 4f electronic states of W atoms and the relative amounts of W-X bonds (X=W, B, C). [..] Read more

Abstract: The existing knowledge on the use of alloying additives in the zinc bath was analyzed. The appropriate content of alloying additives in the bath affects the quality of the coatings and also optimizes the consumption of zinc. [..] Read more

Abstract: Lead and chromium removal from water solutions using the basic oxygen furnace slag was investigated. Calcium, iron, and silica were the main components of the slag. [..] Read more

Abstract: Numerical modelling is becoming an essential part of research in the field of steel metallurgy at present. In numerical modelling, the operating equipment is replaced by a mathematical model, which consists of a system of partial differential equations. [..] Read more

Abstract: Three model alloys based on Fe-C-Ni were studied. The alloys containing carbon between 0.338 and 0.382 wt% and nickel between 1.084 and 4.478 wt%. [..] Read more

Abstract: The present paper is focused on the mathematical and graphical determination of temperature and thermal parameters depending on the heat dissipation from solidifying steel in the mould, respectively in the primary cooling zone of continuous casting of steel (CCS). The main task of the primary cooling is mainly to remove heat from the solidifying steel, therefore knowledge of the temperature fields in the precast and mould is important. [..] Read more

Abstract: Considerable amounts of Fe-containing fine dusts are generated in an integrated steel mill, mainly at the blast furnace (BF) and the basic oxygen furnace (BOF). Limitations in dust recycling via the sinter plant arise especially from the limit for Zn in the BF feed. [..] Read more

Abstract: Steels are commonly used metallic materials, that’s why higher requirements are imposed on their properties. Thermodynamical and thermophysical properties are one of the most important quantities of materials, which are needed for understanding behavior of materials under defined conditions. [..] Read more

Abstract: Bentonite is widely used in various branches of industry due to its special properties like low hydraulic conductivity, high sorption capacity, low permeability. High temperature stability of bentonite determines its usefulness for industrial applications. [..] Read more

Abstract: The presented research was focused on optimizing the internal equipment of the tundish with respect to residence times between the middle (No. 2) and two lateral casting strands (No. [..] Read more

Abstract: The papers focuses on the formation of cavities in metal samples. The main parts is the results of experimental work, which are presented in the form of summarized knowledge about the process of forming cavities. [..] Read more

Abstract: The surface layer of hot working tools is subject to alternating thermo-mechanical loads during forging. It experiences a fast increase in temperature on contact with the heated billets, followed by a steep temperature decline during application of the spray-coolant. [..] Read more

Abstract: The paper presents the results of the effect of deformation parameters on the hot-deformation behavior of the newly developed multi-phase steel assigned for production of forged machine parts. Continuous and interrupted compression tests of the samples after the given deformation were carried out with the use of the Gleeble 3800 thermomechanical simulator. [..] Read more

Abstract: Due to their higher weight-specific and high-temperature strength, iron-aluminium alloys have a high potential to replace steel in various applications. The good availability of the two materials, the excellent recyclability, lower density with increasing aluminium content and the high corrosion resistance in sulphide- and sulphur-rich environments are further advantages. [..] Read more

Abstract: During cold forming of metastable austenitic steels, a strength-increasing phase transformation induced by externally superimposed stresses occurs in addition to strain hardening. The effect of deformation-induced martensite formation has so far not been utilised industrially in the area of bulk forming, but could be suitable for the production of highly-loaded components in oxidative atmospheres. [..] Read more

Abstract: Tube and tube systems are very critical components to fulfill the design requirement of applications. Especially the bending radius is most important factor in a tube bending process. [..] Read more

Abstract: The temperature of the bloom during hot rolling is a crucial factor for the quality of the final product. Heat losses during hot rolling which affect bloom temperatures were therefore experimentally investigated. [..] Read more

Abstract: Hot forming tools are exposed to cyclically changing thermal loads. These conditions are caused by the heat exchange between tool and workpiece during forming followed by spray cooling. [..] Read more

Abstract: The use of hybrid semi-finished products made of aluminium and steel enables the production of components with locally adapted properties, i.e. high strength and wear-resistance with reduced weight. [..] Read more