Open Access Conference Proceedings

Abstract: Hydrogen solved in amorphous alloys (AAs) influences their magnetic characteristics. AAs are also perspective as additives that can improve hydrogen storage kinetic in certain types of ball-milled hydrogen storage materials (HSMs). [..] Read more

Abstract: Nickel is essential metal due to usage area as stainless steel, non-ferrous alloy production, electroplating and chemical industry. Degradation of nickel sulphides leads to extraction of nickel from laterites. [..] Read more

Abstract: Microstructural and mechanical inhomogeneity of laser beam (LBW) and friction stir (FSW) welded joints of 4 mm thick 6082-T6 Al-Mg-Si alloy was studied. Thermal cycles measured in heat affected zone (HAZ) showed that LBW has a much higher heating and cooling rates than FSW. [..] Read more

Abstract: The study is centred on preparation and microstructural analysis of Cu composites containing different volume contents of secondary phases (MgO, Al2O3). The microstructure evolution is observed during the preparation of a nanocrystalline powder and after its processing into a compact. [..] Read more

Abstract: The hydrogen storage properties of ball-milled Mg-Ti-Zr-C composite (1.8 wt.% Ti, 1.9 wt.% Zr and 0.2 wt.% C) were investigated. It has been previously shown, that the addition of Ti, Zr and C improved its storage properties. [..] Read more

Abstract: The main object of this article is to present methods of electrical waste sorting and the subsequent processing of its metallic component. Electrical waste grit is formed by the crushing of electric current cable conductors and consists of pieces of copper wires and plastic granulate. [..] Read more

Abstract: NiTi-based alloys belong to progressive materials which exhibit so called a shape memory phenomenon. These alloys are frequently used at high-temperature applications and automotive industry. [..] Read more

Abstract: The Ni-22Al-0.5B and Ni-24Al-0.5B alloys (at.%) were prepared by a vacuum induction melting process followed by a gravity casting process. The castings were directionally solidified in a resistance furnace at a temperature of 1550 °C and rate of directional solidification of 50 mm h-1. [..] Read more

Abstract: The contribution is focused on assessing the influence of ALPORAS aluminum foam porosity on dimensional precision of machined workpiece using electro-erosion wire cutting technology. The surface structure of material is formed by continuous nets of membrane material, pore volumes and cavities filled with gases residues after foaming. [..] Read more

Abstract: The use of double sintering and rare-earth metal hydride additions allows us to substantially increase the hysteretic parameters of sintered permanent magnets having the composition (wt.%): Pr-14.7, Dy-16.9, Co-24.4, В-1.2, Al-0.3, Cu-0.15, Fe balance. The following magnetic characteristics were reached: Br = 0.95 T, jHc = 1640kA/m, Hk =1370kA/m, BHmax = 176 kJ/m3, temperature coefficient of induction |α|< 0.01 (Т=-60°C to+100 °C). [..] Read more

Abstract: Metallic foams are very perspective candidates for light-weight applications in automotive, aerospace, naval and construction industry. However their mechanical properties are very sensitive, different density regions and structural anisotropy can significantly affect the resulting mechanical properties of products. [..] Read more

Abstract: MAR-M-247 is a nickel-base superalloy developed for applications requiring high strength at elevated temperatures up to about 1000 ºC. Its balanced composition provides an excellent combination of tensile and creep-rupture properties as a result of gamma-prime strengthening enhanced by solid solution and grain-boundary strengthening. [..] Read more

Abstract: Co-Cr based alloys usually produced by conventional casting or newly by direct metal laser sintering (DMLS) have been widely used in dentistry as dental prostheses. This work is focused on the powder size and chemical composition of initial powder particles of a commercial Co-Cr based alloy, as well as on the microstructure after DMLS and heat treatment. [..] Read more

Abstract: The sustained constant increase in the manufacture of packaging, among which tin-containing steel cans constitute a numerous group, requires searching for and implementing new methods enabling the recovery of tin from packaging scraps making up a large fraction of the generated municipal waste stream. In order to determine the preliminary assumptions for newly designed methods for tin recovery from waste steel cans, it becomes necessary to establish the basic parameters of chemical processes that might constitute a principal or additional part of an effectively operating technological line. [..] Read more

Abstract: New materials are available for the well-known thermal process of 3D printing which involves consecutive deposition of layers of heated thermoplastics. This means that machine components can be made not only from the most common plastics, such as ABS, but also from PLA, HIPS, PET, PVA, PETG, PC, and others. [..] Read more

Abstract: Since the discovery of porous metallic materials numerous methods of production have been developed. Porous metallic materials can be made from liquid metal, from powdered metal, metal vapours, or from metal ions. [..] Read more

Abstract: The article deals with casting methods of producing of metallic foams, it is focused on materials with a regular arrangement of internal cells. Currently, there are two areas dealing with metallic foams: optimization of already used casting technologies - manufacturing of metallic foams with a regular cell structure using sand cores and the possibility of the usage of this material. [..] Read more

Abstract: The work deals with the controlled gasification of castings from aluminum alloys. In troubled places of castings the thermal nodes that cannot be always fitted with risers and interior shrinkage with negative influence on tightness and the mechanical properties of casting are formed. [..] Read more

Abstract: Ti-6Al-2Sn-4Zr-6Mo (Ti-6-2-4-6) is a high strength titanium alloy having low density and good corrosion resistance. The primary commercial applications of this alloy are forgings designed for working at intermediate temperature turbine engine rotating components. [..] Read more

Abstract: Modular hip joint endoprostheses allow for fitting the head size and offset (distance from the centre of the head to the mechanical axis of the prosthesis) with the prosthesis size. This is possible through application of the external lock cone, mainly with dimensions of d = 12, L = 11, D = 14, and the internal cone with the same dimensions in the head. [..] Read more