Open Access Conference Proceedings

Abstract: In this work, the effect of processing conditions on microstructure and mechanical properties of Fe–Al–Si alloys is studied. The microstructure and mechanical properties during each step of processing consisting of mechanical alloying and spark plasma sintering are characterized by means of light microscopy, scanning electron microscopy, x-ray diffraction and micro/nano hardness measurements. [..] Read more

Abstract: Microstructure and properties of joints of titanium and C45 non-alloy quality steel performed using aluminum, copper and nickel foils as interlayers were evaluated in the study. The process was carried out in vacuum in the temperature 600, 900 and 950 C for 60 min for Al, Cu and Ni filler metals, respectively. [..] Read more

Abstract: In this article, a hot extruded (EX) AZ31 magnesium alloys with a lithium content of 7.5 wt.% and 15 wt.% were subjected to severe plastic deformation using Equal Channel Angular Pressing (ECAP) at 250 °C. In order to investigate changes in the structure and substructure, light microscopy and scanning microscopy were used. [..] Read more

Abstract: The aim of the present work was to improve the quality of the single crystal permanent magnets based on the Ticonal 9 alloy (35 % Co, 14 % Ni, 7 % Al, 5 % Ti, 4 % Cu, Fe the rest, in wt.%) applied in the precision instruments of the space techniques. The alignment, configuration and structural perfection of the Ticonal 9 based single crystal magnets with different magnetic characteristics have been studied in the work. [..] Read more

Abstract: Exploration of biocompatible materials with improved mechanical properties imposes a change in the chemical composition of the (α+β) titanium alloys used in the modern implantology. The increased quantity of some toxic alloying elements could eventually cause undesirable biological effects in the human body. [..] Read more

Abstract: The as-cast Al–Zn–Mg-based alloy with and without Sc, Zr-addition was investigated during isochronal annealing from room temperature up to 480 °C. Precipitation reactions were studied by electrical resistometry, microhardness measurements and differential scanning calorimetry. [..] Read more

Abstract: Twin-roll cast Al-Mg-Sc alloy was submitted to deformation by cold-rolling. The influence of heat treatment 300 °C / 8 h, which was applied either before or after the deformation, on the deformation microstructure was studied by the means of scanning and transmission electron microscopy and by microhardness measurements. [..] Read more

Abstract: Hydrogen absorption in chosen binary Mg-X (X-Al, Ga, In, Si and Sn) intermetallics was studied. These compounds are prospective as additives in other Mg-based hydrogen storage materials. [..] Read more

Abstract: Magnesium and calcium phosphates composites are promising biomaterials to create biodegradable load-bearing implants for bone regeneration. The present investigation is focused on the design of an interpenetrated magnesium – tricalcium phosphate (Mg-TCP) composite. [..] Read more

Abstract: This paper presents results concerning copper-zeolite composites fabricated by powder metallurgy. It focuses on the effect of zeolite particles on the properties of the sintered material as well as the quality of the bonding between the zeolite reinforcement and the copper matrix. [..] Read more

Abstract: This work investigates the formation of the structure of high-strength aluminum alloy based on an Al-Zn-Mg-Ni-Fe system with an iron content of more than 0.5 wt.% during thermomechanical treatment including hot and cold longitudinal rolling with a reduction ratio of 40 and radial-shear rolling with a reduction ratio of 8.16. Microstructural investigations showed that iron and nickel are joined into the eutectic Al9FeNi phase at all stages, and the non-equilibrium T phase has no influence on technological plasticity. [..] Read more

Abstract: The strength and hardness in some metal or alloys may be enhanced by the presence of extremely small and uniformly dispersed particles within the original phase matrix. The aim of this paper was to prepare and characterize the Cu-0.4Cr-0.1Nb (wt.%) alloy strengthened by the high melting point intermetallic compound Cr2Nb. [..] Read more

Abstract: Inconel® is a group of nickel-based superalloys, which are featured by superior combination properties. Their good mechanical properties at high temperature, good oxidation and corrosion resistance cause them to become attractive choices for diverse applications in aerospace, marine, chemical, petrochemical and energy industries. [..] Read more

Abstract: The purpose of this study is to compare the dissimilar joints of pure titanium to stainless steel achieved by different intermediate materials like aluminum, copper and nickel. Due to the metallurgical incompatibility between those base materials, it has been very difficult to produce reliable joints due to the formation of FeTi and Fe2Ti intermetallic compounds. [..] Read more

Abstract: This article describes experiments performed to assess the effectiveness of abrasive waterjet (AWJ) cutting used to cut copper. The roughness parameters of the cut surface and the kerf widths were measured using a TOPO L120 contact profilometer and a Nikon Eclipse MA 200 optical microscope. [..] Read more

Abstract: Critical raw materials, such as rare earths (REEs), have a high economic importance for the EU, combined with a high risk associated with their supply depending on very limited sources. Therefore, the recovery of the RE elements is extremely important for both economic and environmental reasons. [..] Read more

Abstract: Magnesium-lithium alloy is one of the lightest metal construction material and has excellent strength and with low density. Its density is about 1.3-1.6 g/cm3 and has high strength, and is an ideal structure material for aerospace, aeronautics and military industry, nuclear industry, electronic products, etc. [..] Read more

Abstract: An increase in the consumption of platinum in the automotive industry is related to the growing number of cars manufactured. Modern and well-used equipment of this type which is fitted as standard in cars should work for at least 8·107 - 9·107 metres. [..] Read more

Abstract: In the paper there are presented preliminary results of microwelding thin sheet of superalloys Hastelloy X and Haynes 230®. The studies determined the basic parameters of microwelding superalloys thin sheet. [..] Read more

Abstract: Microstructures, properties and technical parameters of the welds carried out by the electron beam welding (EBW) process have been investigated in the present paper. Electron beam welding (EBW) is a fusion joining process particularly suitable for the welding titanium. [..] Read more