Open Access Conference Proceedings

Abstract: Thanks to the specific sensitivity of lead to volatile organic compounds (VOC), it is possible to use lead as an indicator of contamination of the indoor atmosphere of depositories of archives and museums where VOCs are typical pollutants. The classification of corrosion aggressiveness of indoor environments based on the determination of the corrosion rate of reference metals is given by the standard ISO 11844-1 which was recently supplemented with lead. [..] Read more

Abstract: Aluminum-based alloys (Al-Mg, Al-Si-Mg, Al-Zn-Mg, etc.) are intended for the manufacturing of parts subjected to intense stresses by cavitation erosion. This complex phenomenon includes both the hydrodynamic factors of the liquid and the microstructure, hardness and ductility characteristics of the material. [..] Read more

Abstract: Orthorhombic Ti2AlNb-based alloys are considered as promising materials for high-temperature applications in aero-engines due to their high yield strength, low-cycle fatigue, creep resistance. Additive manufacturing is a promising way of producing intermetallic alloy since it allows obtained complex-shaped parts without significant machining. [..] Read more

Abstract: Ti2AlNb-based titanium matrix composites reinforced by silicon carbide particles/fibers have received great attention for light-weight aero-space applications at high service temperatures since titanium orthorhombic alloys demonstrate an attractive combination of mechanical properties, low density, and are suitable for matrix materials. Additive Manufacturing is a promising way of producing SiC/Ti2AlNb composites because it offers a possibility to produce parts with ahigh degree of design-freedom and good mechanical properties. [..] Read more

Abstract: Currently, 3D-printing of smart materials is actively developing. Alloys based on intermetallic compounds Ni-Mn-Ga and Ni-Co-Al are of great interest due to the ability to manipulate their deformation behavior by external magnetic field with much higher effect than in conventional magnetostrictive materials. [..] Read more

Abstract: TiNi alloy, also known under the commercial name Nitinol, is one of the best known shape memory alloys. Currently, there are many studies related to the possibility of obtaining this alloy using additive manufacturing technologies, especially selective laser melting. [..] Read more

Abstract: The quality control of most castings concerns finished products and is carried out at special stands after the end of the production process. However, more and more foundries decide to use the so-called inter-operational quality control, the advantage of which is the earlier detection of defective products, which allows, among others to reduce production costs. [..] Read more

Abstract: The aim of the work is a proposal of innovative technology of metal waste processing – sludges and filtration cakes from galvanizing plants. The paper deals with possibilities of zinc obtaining from waste of galvanic sludge, which arises during galvanic plating. [..] Read more

Abstract: The current appetite for base metals, primary metals resources are being depleted; theneed to recycling waste of primary metallurgy such as slag is on the rise. This study investigates the recovery of Ge, Cu and Co with ferrosilicon addition from Ge-copper bearing slag from STL/Gecamines in the Democratic Republic of Congo during carbothermic reduction and sulfurization. [..] Read more

Abstract: Due to the sudden sharp increase in tin demand, the production of tin through carbothermic reduction process requires refreshment by assembling important required data and disseminate to the potential producers. The current paper presents a review on different parameters that have been tested on different tin ores. [..] Read more

Abstract: An investigation of Eu and Dy doped yttrium aluminates/borates samples prepared by solid-state reaction in reduction/air atmosphere is presented. The structure of the synthesized samples was studied by powder X-ray diffraction. [..] Read more

Abstract: Tungsten–copper composites feature high corrosion and erosion resistance, very good thermal and electrical conductivity, low thermal expansion and good mechanical properties. They are used in a variety of demanding applications, such as arc-resistant electrodes, high voltage electrical contacts, heat sinks for integrated circuits, etc. [..] Read more

Abstract: Tungsten-based materials are the most prospective candidates for plasma-facing components of future fusion devices, such as ITER and DEMO. For joining of the tungsten armor to the cooling or structural parts, composites and graded layers can be used as stress-relieving interlayers.This work presents a feasibility study of W+Cu composites preparation by plasma transferred arc (PTA) cladding on tungsten substrates. [..] Read more

Abstract: The content of the paper is a brief description of the basic characteristics of the reactive diffusion in the dissolution of solid copper in the melt of tin solder. Furthermore, it deals with the theory of growth kinetics of intermetallic phases during heat treatment, and a description of lead-free solders and related problems during soldering. [..] Read more

Abstract: The paper sets an example of modeling the expansion and bed pressure drop of the cohesive and problematic material - titanium dioxide modified by Aerosil R972 in program Ansys / CFX - Fluent using two multiphase models, Euler Fluid-Granular Model and Dense Discrete Phase Model at certain predefined conditions in a square section fluidized bed cell. The variables bed pressure drop, particle concentration in volume and velocity field of solid particles were defined for the simulations in metallurgical processes.The research follows on from the previous study of simulating the arrangement of spherical particles with a diameter of 2-10 mm and compares them with the experiment, where it was discovered, that the square section fluidized cell achieves the best results with spherical particle arrangements of diameter 8 mm.. [..] Read more

Abstract: Hydrogen in aluminum alloys is generally considered to be a predominantly adverse gas. It affects cleanliness, porosity and other mechanical and foundry properties. [..] Read more

Abstract: As part of the work, a low-waste resource-saving technology for processing diopside with the extraction of scandium compounds and the associated production of a wide range of large-tonnage mineral products has been developed. The technology of solid-phase extraction of scandium compounds using solid impregnates based on macroporous activated carbons modified with phosphonic acids has been proposed. [..] Read more

Abstract: The article considers the possibility of obtaining blue vitriol, where electrolytes, solutions from dehumidification of sludge, washing waters of cuprous production, condensates, and copper granules are used as initial process materials. Possibilities of solubility of charge components using different solvents are considered. [..] Read more

Abstract: Al-Si alloys alloyed with Mn and Mg are widely used in industry, especially as cast alloys. The presence of Mg allows subsequent heat treatment, which will improve mechanical properties. [..] Read more

Abstract: The Foundry Degassing Unit for aluminum melt refining uses graphite components which, due to the action of the melt, degrade and lose their original shape. The shape of the impeller can have a significant effect on the efficiency of refining. [..] Read more