Open Access Conference Proceedings

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: Metal and organometal halide perovskites, an emerging class of direct bandgap semiconductors, have attracted great attention lately. Lead halide perovskites were recognized as promising candidates for future lighting applications, due to their high quantum yield, narrow full width at half maximum (FWHM), and wide color gamut. [..] Read more

Abstract: Studying the nonlinearities in the resonant mode one may face thermo-optical effects due to sample overheating, occurring upon exposure to high-frequency repetition rate probing pulse. If present, thermo-optical contribution to the refractive index are extremely hard to separate from the electronic contribution. [..] Read more

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: Metallurgy is one of the industrial sectors that very well express the basic principles of the circular economy. This study presents the production of two main metals - zinc and lead - through the lens of the circular economy. [..] Read more

Abstract: The Neural-Network Quantum States (NNQS) method is rapidly emerging as a powerful tool for investigating quantum many-body physics. By combining variational Monte Carlo techniques with neural network-based variational functions, this approach leverages the remarkable advancements in deep learning achieved in recent years. [..] 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 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: Porous metallic materials have generally an extensive potential for various applications. It is therefore necessary to know the basic properties of these unconventional materials. [..] 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