Open Access Conference Proceedings

Abstract: During the production of high carbon ferromanganese, the feed undergoes different stages of reduction. Three main zones were assumed instead of traditional four. [..] Read more

Abstract: In the course of the work, a resource-saving version of the work of all basic elements was developed. The developed technological scheme will allow wastewater to be treated to modern maximum permissible concentrations (MPC) standards due to the highly efficient removal of heavy and non-ferrous metals and organic impurities, which can significantly reduce the cost of water supply to the enterprise.. [..] Read more

Abstract: In the current study the effects of conventional aging and stress aging on the microstructure and mechanical behavior of warm rolled AZ31 magnesium alloy were investigated. Tensile experiments revealed that the ultimate tensile strength (UTS) of the as-received AZ31 increased up to 300 MPa after 24 h aging at 120 °C, with a 2% reduction in ductility. [..] Read more

Abstract: The focusing of new technologies on the formation of inhomogeneous distributions of heavy rare-earth metals (REMs) in hard magnetic Nd-Fe-B materials is of scientific importance for increasing their functional properties, along with preserving existing sources of heavy REMs. The manufacturing process for these materials includes strip-casting, hydrogen decrepitation, and treatments in a hydrogen atmosphere, as well as high-energy milling combined with mechanical alloying of multicomponent powder mixtures. [..] Read more

Abstract: The study relates to the processing of zinc-containing wastes of metallurgical production using products of joint pyrolysis of polyethylene wastes and wood pods. The process is carried out in two stages: preparation of polyethylene waste for the operation and then the recovery process. [..] Read more

Abstract: In this time many suppliers are existed with raw material for foundry and the same as a minimum number has difficult task of choosing the most suitable one. How we can search the best of them for us? It is hard question. [..] Read more

Abstract: This article deals with the chemical composition of the engine part mounted on the historical motorcycle JAWA 250 from 1939. Before the company started making motorcycles, it was engaged in the production of firearms. [..] Read more

Abstract: Both steel and aluminum alloys rank among the most important structural materials due to their suitable properties in various applications and low material cost. Bonding of such dissimilar materials and formation of a composite material can lead to an effective combination of steel high strength and aluminum low density and corrosion resistance. [..] Read more

Abstract: The corrosion resistance of aluminum-silicon (Al-Si) foundry alloys is a result of microstructure development influenced by melt treatment and solidification. As a part of the main eutectic (αAl + βSi), βSi particles are cathodic with respect to the αAl matrix enabling micro-galvanic couple formation and localized corrosion. [..] Read more

Abstract: The fundamental magnetic characteristics of R2Fe14B intermetallics are highly sensitive to atomic substitutions and interstitial absorption of light elements. In this work, both were combined, and the influence of the substitutions in the R-sublattice and hydrogen absorption on the magnetization of (RR’)2Fe14BHx (R is Tm or Er, and R’ is Nd) in magnetic fields up to 58T was studied. [..] Read more

Abstract: The paper presents the results of testing a composite based on Al2O3 with the addition of zirconium oxide ZrO2 of 0 %, 5 %, 10 %, 15 %, and 20 %. ZrO2 powder was stabilized with 8% mol Y2O3. [..] Read more

Abstract: The results of experimental studies of the extraction of insoluble aluminum (III) compounds from aqueous solutions in the presence of surfactants of various nature and alkaline earth metal ions (Mg2+, Ca2+, Ba2+) by the electroflotation method are being explained in this study. A comparative analysis of the influence of these components on the efficiency of electroflotation extraction of aluminum (III) hydroxide is carried out. [..] Read more

Abstract: The features of electroflotation extraction of a mixture of heavy hydroxides and non-ferrous metals (Fe2+, Ni2+, Zn2+, Co2+, Cu2+) from a five-component system in the presence of various background electrolytes were studied. The influence of the nature of various background electrolytes on the kinetics of electroflotation extraction of the mixture of the studied hydroxides at pH=10 was established. [..] Read more

Abstract: In the present work AA7075 alloys with and without Sc, Zr addition after hot deformation were studied. Thermal responses of precipitation reactions of hot deformed alloys were studied by differential scanning calorimetry, the relative electrical resistivity changes were determined by DC four-point method. [..] Read more

Abstract: This work is devoted to the study of the synthesis of various ternary intermetallic compounds based on aluminum in two alternative ways - self-propagating high-temperature synthesis (SHS) and mechanosynthesis (MS) and subsequent hot extrusion (HE) of pure aluminum powder mixtures as a matrix and the above-mentioned TIM as a hardening additive. Mechanical tensile tests showed an increase in tensile strength by 3.3 - 9.7% rel. [..] Read more

Abstract: Additive Manufacturing (AM) is an attractive way of producing parts of intermetallic titanium alloys. However, high brittleness of these alloys makes it challenging to produce crack-free intermetallic parts by AM. [..] Read more

Abstract: Palladium membranes have a high selectivity for hydrogen, which is coupled with their temperature and mechanical stability. Such a selectivity of palladium membranes makes the membrane method the single procedure that allows one to prepare the high-purity hydrogen (no less than 99.9999 vol%) being the main energy carrier in hydrogen power engineering. [..] Read more

Abstract: The mixture of ZrB2 and SiC powders were used as a raw material. The powders were milled in a planetary ball mill, blended with polyvinyl alcohol, and sieved to 0-125 µm. [..] Read more

Abstract: The article compares the results of three analytical methods for the determination of the chemical composition on the surface of certified standards and aluminum alloy products. It is glow discharge optical emission spectrometry (GDOES), optical emission spectrometry (OES) with spark discharge, and energetic dispersive X-ray fluorescence (ED-XRF). [..] Read more

Abstract: The application of powder blending procedure shows promise in manufacturing Nd-Fe-B magnets; in this case, hydrides, oxides, intermetallic compounds, etc. are used as one of the mixture components. [..] Read more