Open Access Conference Proceedings

Abstract: The main subjects of this presentation are layers made of alumina obtained from organic and aqueous sols deposited on the steel substrates by the sol-gel and electrophoretic deposition (EPD) methods. Aluminum oxide has a very large specific surface area. [..] Read more

Abstract: One of the alternative and topical ways of intermetallic and nonferrous materials application is a metal hydrides formation. Metal hydrides allow storage of hydrogen; carry out gas purification and compression.Development of powder metallurgy provides new possibility for investigations in the field of alternative way of hydrogen storage. [..] Read more

Abstract: Zirconium based alloys are commonly used as material for fuel claddings in the light water reactors. Claddings act as first metallic barriers against loss of fission products during the nuclear power plant operation, intermittent storage or final dry storage. [..] Read more

Abstract: Ti-6Al-4V alloy is mostly used for dental and hard tissue implants, due to its high strength to weight ratio, high corrosion resistance, and relatively low elastic modulus. However, apart from health concerns of V ions release and higher Young’s modulus (~120 GPa) than human bone (~30 GPa), recent research indicates day-to-day cyclic loading instead of a single-load event such as a fall, might be the consequence of inherent stiffness of fixation implants. [..] Read more

Abstract: We investigate the new alloys of Mg–Ga–Zn–X system, where X = Ca, Y and Nd. These alloys can be used as biodegradable materials due to the low cytotoxicity of Zn and Ga and effectiveness of Ga against bone resorption, osteoporosis and Paget’s disease. [..] Read more

Abstract: The results of investigations of the structure and mechanical properties of in-situ aluminum matrix composites based on the Al-Mg-Si system reinforced with primarily crystallizing silicides Mg2Si are presented. The main advantage of such materials is the usage of relatively inexpensive initial components with absence of the necessity for the use of powders, which greatly simplifies technology and reduces the production cost of castings. [..] Read more

Abstract: It is shown from the point of view of the quasicrystalline model of metallic melts that during the liquid phase treatment by nanosecond electromagnetic pulses it may be possible the occurrence of energy fluctuations in the melt, change of short-range order structure in the atoms arrangement, reducing the cluster size and shortening their lifespan, decreasing the disordering temperature. These processes change the physical properties of the melt, crystallization parameters, physical-mechanical and operational properties of the obtained alloys. [..] Read more

Abstract: The Mg – 2.2-3.8 wt.% Zn – 0.3-0.7 wt.% Ca – 0-0.9 wt.% Mn alloys as a material for the production of biodegradable implants was investigated. Equal-channel angular pressing (ECAP) to improve the grain structure and mechanical properties of the alloys was used. [..] Read more

Abstract: The effect of chemical composition on hot tearing susceptibility of a polycrystalline industrial gas turbine blade during casting process has been investigated. Five master melts from two different nickel base superalloys by nearly similar chemical composition have been used for this purpose. [..] Read more

Abstract: The research problem focuses on the wires made of aluminum alloys acquired in the wire drawing process of the wire rod obtained using the Continuus Properzi method. The nature of the drawing process generates a heterogeneity of strain on the wire cross-section, which results in the formation of internal stresses. [..] Read more

Abstract: Commercially pure titanium was prepared by advanced powder metallurgy methods with the aim to produce the ultra-fine grained material. Cryogenic attritor milling was used as a first step to refine the microstructure at liquid argon temperatures to suppress recovery and dynamic recrystallization. [..] Read more

Abstract: Beta titanium alloy, Ti-35Nb-6Ta-7Zr-0.7O (wt.%), differs from most of Ti-Nb-Zr-Ta based biomedical alloys by its very high oxygen content, which provides a significant interstitial solution strengthening. However, there is a need for thermomechanical processing due to the poor fatigue resistance after casting. [..] Read more

Abstract: Today neodymium plays a very important role as a main component of Nd-Fe-B magnets, which are indispensable for clean energy application. Therefore, the short information about neodymium and its production in the last years are presented. [..] Read more

Abstract: Magnesium and its alloys are considered for specific applications in medicine such as fixation devices, screws and stents. However, release of hydrogen gas, pH increase and premature failure of the mechanical integrity of implant material are considered as the main limitations. [..] Read more

Abstract: The ore raw materials of Au, Mo producing industry are predominantly sulphide. Technologies for their processing include the oxidation stage, for which chlorine, oxygen, ozone, nitric acid, Mn(IV), Fe(III), NaCiO are used. [..] Read more

Abstract: Multi-component alloys containing at least five elements in equimolar or near equimolar ratio are commonly known as High-Entropy Alloys. Despite the complex chemical composition, with the fulfilment of specific thermodynamic parameters, they are characterized by the existence of simple phases. [..] Read more

Abstract: Anomalous X-ray diffraction measurements were performed on a metastable β titanium alloy (Ti-15 wt% Mo) containing thermodynamically metastable ω phase particles. The dependence of diffracted intensity on primary beam energy was measured for selected ω and β diffraction maxima for energies near the MoK absorption edge (20.0 keV). [..] Read more

Abstract: Experimental study and numerical model for the thermo-mechanical properties in continuous casting (CC) of Cu-Al alloys is presented. This is a prerequisite basis for further development of the Cu based shape memory alloys (SMA) with various alloying elements (like Ni or Mn). [..] Read more

Abstract: Two binary alloys Mg-3Nd (N3) and Mg-3Y (W3) processed by hot extrusion and equal channel angular pressing (ECAP) were studied. Microstructure after extrusion and a different number of ECAP passes was investigated by scanning and transmission electron microscope. [..] Read more

Abstract: Twin-roll casting allows production of sheets and strips with required thickness without subsequent homogenization or hot rolling and therefore has a high potential for industrial applications. One of the drawbacks of this method is a formation of inhomogeneous structure with central segregation. [..] Read more