Open Access Conference Proceedings

Abstract: Samples of in-situ TiAl-based matrix composite reinforced with Ti2AlC particles were prepared by the centrifugal casting of Ti-47Al-5Nb-1C-0.2B (at.%) alloy. The as-cast samples were subjected to hot isostatic pressing (HIP) at 1360 °C to remove casting porosity. [..] Read more

Abstract: This article presents studies of the of lightweight mesh structures properties made by selective laser melting technology. The study of lattice structures with different sizes of struts was made. [..] Read more

Abstract: In the recent years, the amount of waste has been drastically increasing, affected on the environment. On the other hand, there is observed a shortage of metals associated with the increase in their use and depletion of their natural resources. [..] Read more

Abstract: Parts from heat-resistant nickel alloys with directional crystallization, as well as single crystals are used in engines and power plants operating under conditions of high temperatures and loads. In this paper, the study of the structure formation in the process of selective laser melting of a heat-resistant nickel alloy was conducted. [..] Read more

Abstract: The article aims at the use of lightweight aluminum alloy decks in bridge engineering and presents the advantages of their increasing application. The article also highlights the properties affecting the durability and compressibility of aluminum alloys. [..] Read more

Abstract: Iron is present in nearly all aluminum alloys as an impurity causing a formation of iron-rich precipitates in the as-cast state of the alloy due to its low solubility in the matrix. Dispersion, morphology and relative coarseness of precipitates may affect formation of unwanted pinholes during cold rolling to thin gauges. [..] Read more

Abstract: Some recycling technologies are used to processing of waste lithium batteries. The treatment can be carried out pyro-metallurgically, hydro-metallurgically or both with respect to which metals must be obtained. [..] 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: The spark plasma sintering (SPS) method was used to prepare bulk materials form WN43 magnesium alloy atomized powder. Compression tests were carried out in order to investigate the effect of different sintering regimes (10 min at 400, 450, or 500 °C) on the mechanical properties of the material. [..] Read more

Abstract: Aim of this work is to test possibility to utilize colorimetric spectroscopy for monitoring the corrosion of lead and tin-lead alloys. And furthermore method suitability for preliminary corrosion evaluation of cultural heritage objects. [..] Read more

Abstract: In the scope of this paper, the usage of the miniature samples and investigating using small samples is discussed. The miniature samples were used for determination of mechanical properties for titanium alloy deposited by additive manufacturing. [..] Read more

Abstract: In the present work, the computer simulation of hysteresis loops of (Nd1-xPrx)2Fe14B compounds with different Pr contents was performed for a temperature range of 300-5 K. The simulation results suggest that the alloying of Nd2Fe14B with Pr (1) leads to reducing the negative effect of the spin-reorientation phase transition on the residual magnetization of the compound (Nd1-xPrx)2Fe14B, (2) reduces the slope of the demagnetization curve making the hysteresis loop more rectangular, (3) does not have a noticeable effect on the maximum value of the coercive force, shifting its maximum to lower temperatures as the Pr content increases. [..] Read more

Abstract: In recent years, the application of various additions (hydrides, oxides, intermetallic compounds, etc.) to powder mixtures for manufacturing Nd-Fe-B magnets shows promise as the method that allows one to increase the hysteretic characteristics of the magnets at the expense of realized grain-boundary diffusion and grain-boundary structuring processes. The hysteretic characteristics of sintered Nd-Fe-B magnets are highly sensitive to their microstructure and composition of phases. [..] Read more

Abstract: The effect of hydrogen atmosphere sintering in manufacturing (Sm,Zr)(Со,Cu,Fe)Z-based permanent magnets on their properties has been studied. It is shown that sintering in hydrogen, in comparison with sintering in argon, allows obtaining a higher density of billets, while reducing the optimal sintering temperature range by 20 °C. [..] Read more

Abstract: γ-TiAl based alloys are very perspective materials thanks to their outstanding properties, such as high specific strength, low density, high modulus of elasticity, good oxidation resistance and resistance to creep. At present, the greatest attention is paid to TiAl alloys which contain relatively high content of refractory metals such as Nb, Ta, Mo and W. [..] Read more

Abstract: The article deals with machining and development of the wear of cutting tools for turning of nickel alloy Inconel 718 - 2.4648. This alloy is characterized by high strength and toughness, low thermal conductivity and high abrasion. [..] Read more

Abstract: In the present work, compact of Cu matrix composites reinforced with 5 wt% of TiN were prepared by mechanical alloying and spark plasma sintering method. Influence of sintering parameters on the electrical, mechanical, physical properties and microstructure of copper matrix composite material was investigated. [..] Read more

Abstract: The use of aluminum alloys in many industrial sectors is still increasing today. Due to its excellent properties, aluminum is widely used, for example, in construction, food, and automotive industries. [..] Read more

Abstract: The paper describes the use of physical modelling to study the degassing of aluminum melts in the refining ladle by inert gas blowing. The technology of blowing inert gas into the ladle through a rotating impeller is the most common method in operating conditions to reduce the unwanted phases content in molten aluminum, e.g. [..] Read more

Abstract: High pressure die casting technology is one of the most productive technologies for producing thin-walled aluminum parts in mass production. Along with high productivity, it offers high precision, very good surface quality, fine-grained texture without tightenings with good mechanical properties. [..] Read more