Open Access Conference Proceedings

Abstract: This study has been focused on the evaluation and comparison of the chemical treatments applied (aqueous solutions of CH3COOH (1 %), CH3COONH4 (5/25 %), EDTA (3/5 %), HCl (5/10 %) and ion exchange resin) or possible applicable (H2SO4, Na3PO4·12H2O or KNaC4H4O6·4H2O) to the heritage of lead stored in museums. The evaluation of the different solutions used for chemical treatment on lead samples is based on lead surface changes (colour, morphology, chemical composition) observation and on the impact of the chemical treatments (mass loss and cleaning efficiency). [..] Read more

Abstract: Compatibility of structural materials with a coolant, in conditions relevant to power plant operation, is a field of research of primary importance to nuclear safety. The current work describes the behaviour of T91 steels, under such conditions. [..] Read more

Abstract: In the past the treatment of industrial residues from copper, lead or zinc industry focused in the majority of cases only on the recovery of one target metal. Mostly it is the focal metal produced in the industry the residue arises from. [..] Read more

Abstract: At the present time, products are no longer the only decisive factor when it comes to a company’s success – what is no less crucial is the efficiency of the entire supply chain which allows smooth running of production as well as accurate delivery of products to customers. SCM capabilities are thus of the utmost importance. [..] Read more

Abstract: Procedure for the treatment of waste lithium batteries in order to get selected metals is still being developed. One of the possibilities is the use of a metal-based collector, which can increase the efficiency of the process of metals transition into the melt. [..] 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: The influence of varying thermal treatment conditions on reducing zinc and lead content from a steelmaking sludge was studied. The Waelz process in a laboratory rotary kiln was used for the experiments. [..] Read more

Abstract: This paper concerns the characteristics of the material considered as one of the potentially applicable ones under the research topic "Sustainable lead-free fittings for drinking water and gas installations - machinability and connection possibilities".One of the main assumptions of the project were eliminating the recrystallization annealing process because of the use of controlled cooling after forging. The test material was lead-free brass CuZn21Si3P. [..] Read more

Abstract: In the present work the corrosion resistance of candidate lead-free solder alloys in simulated seawater conditions was investigated. Four different alloys were studied: Sn-0.7Cu, Sn-3.5Ag, Sn-0.3Ag-0.7Cu and Sn-3.5Ag-0.7Cu (composition in wt.%). [..] Read more

Abstract: In terms of corrosion protection, metal passivity is a very important phenomenon, as it leads to slower corrosion process in oxidative environments. This phenomenon is of particular advantage in power plants, where electrochemical corrosion, especially on surfaces of components, occurs very often. [..] Read more

Abstract: This paper briefly describes how to estimate numerically the quantitative uncertainty of potentiodynamic polarization curves obtained from a charge transfer controlled reaction in the case of working electrodes made from C45 steel with specific coatings (WC-Co, WC-Co-Al2O3 and a reference without coatings). The processed dataset was created during a real physicochemical experiment, but potentiostat/galvanostat transformed the dataset of measurements into parameters of Tafel’s lines without uncertainty estimation. [..] Read more

Abstract: Influence of various parameters of final machining on stress corrosion cracking of austenitic stainless steel was investigated. Boiling magnesium chloride solution was used as a medium for exposure of samples to find out the susceptibility for corrosion cracking. [..] Read more

Abstract: The paper focuses on a detailed analysis of chemical heterogeneity of Inconel 625 overlays with an increased molybdenum content deposited by laser cladding. Fifteen samples of laser overlays on S355J2 steel were prepared, each with an area of 90×140 mm. [..] Read more

Abstract: The article is focused on corrosion problems in the rolling stock. Various factors which determine speed intensity of a corrosion process are presented. [..] Read more

Abstract: The paper presents the literature review of maturity models used for improvement of logistics performance in industrial companies. The aim of the paper is an analysis of the state of the art and critical evaluation of strengths and weaknesses of the existing models. [..] Read more

Abstract: The aim of the article is to research approaches and trends in the supplier selection and evaluation process in the metallurgical industry with focus on sustainable and resilience assessment. A systematic literature review of scientific articles containing case studies of selection and evaluation of metallurgical suppliers was chosen as a research method. [..] Read more

Abstract: Reducibility of raw materials such as iron ore and sinter is a significant parameter characterizing the quality of input materials of blast furnace feedstock. It is considered to be a tool for optimizing of production process in shaft aggregates referring to economical production of pig iron. [..] Read more

Abstract: It is a common practice to use automated software tools to identify material properties values in dataset recorded during the tensile tests. Our work is a comparative study how different numerical algorithms affect resulting material properties values. [..] Read more

Abstract: The present article deals with the selection of an appropriate supplier and service provider in the field of transportation and with the determination of key assessment indicators for the selection of transportation service providers. At present, the theories of logistic evaluation of material flows in the transportation segment are paid much attention due to occurrence of plenty of negative phenomena. [..] Read more

Abstract: Basicity is one of the key chemical criteria in evaluating the properties of ore raw materials. The alkaline character of the blast furnace charge affects the efficiency of the iron production process in the blast furnace. [..] Read more