Open Access Conference Proceedings

Abstract: Alloy galvanizing with nickel content is a high corrosion and heat resistant coating that meets the high demands of the automotive industry. The plating is galvanic, and the deposited alloy coating is protected by final treatments (passivation and sealing). [..] Read more

Abstract: Anodic oxidation of aluminum alloy in a ternary solution of SAS (sulfuric, adipic and oxalic acids) was carried out in order to obtain the aluminum oxide layer (Al2O3) and Al2O3 with inorganic fullerene-like tungsten disulfide (IF-WS2) named in article as Al2O3/IF-WS2. The micro-hardness, thickness, geometric structure of the surface (SGP) and the microstructures of Al2O3 and Al2O3/IF-WS2 were investigated. [..] Read more

Abstract: This study developed how the changing of distance between electrodes in the anodizing process affects the surface morphology and mechanical properties of oxide coatings. Oxide coatings were prepared on aluminum alloy samples. [..] Read more

Abstract: The influence of the nature of organic additives on the rate of low-temperature chemical deposition of nickel is studied. The class of organic compounds allowing to obtain adhesion coating of chemical nickel was revealed. [..] Read more

Abstract: Geo-components are manufactured from steel, galvanized steel and polymers commonly take the form of reinforcing meshes, straps or strips for high quality erosion and sediment control systems. Prediction of durability of zinc/zinc alloyed coatings can be done on the basis of knowledge of their thickness and zinc/zinc alloyed corrosion rate in soil. [..] Read more

Abstract: Modern applications of pneumatic and hydraulic systems in extreme subsea production increased emphasis on long life and minimum maintenance cycles. For this reason, are constantly developed new sealing elements. [..] Read more

Abstract: The main topic of the paper is the roughness analysis of machined surfaces shaped parts and influences that affect them. Specifically, it is an analysis of selected 2D and 3D roughness parameters by using the 3-axis, 3+2-axis and 5-axis milling methods. [..] Read more

Abstract: The article describes the technology and application of anti-graffiti coating systems for rolling stock, i.e. coatings resistant to devastation by graffiti-vandals and easy to be renovated later. [..] Read more

Abstract: This work is devoted to experimental research of the influence of technological parameters of plasma-electrolytic modification on the structural-phase condition, also changes in the mechanical and tribological properties of the surface layers of structural steel 0,3Cr-1Mn-1Si-Fe after plasma-electrolytic processing. Metallographic analysis methods using «NEOPHOT-21» and «AXIOPHOT-2» optical microscopes, X-ray diffraction analysis on X'PertPRO and XRD-6000 diffractometers in monochromatic CuKα radiation, as well as elemental analysis on scanning electron microscopes FEIXL-30-FEG and JSM6390-LV, mechanical testing for microhardness on the installation PMT-1M, methods for measuring wear resistance according to the “ball-disk” scheme and corrosion resistance obtained the following results: microstructure of steel 0,3Cr-1Mn-1Si-Fe after nitriding in electrolyte plasma according to mode 1 consist from α-phase and iron nitride (FeN); and mode 2: at a temperature of 700-750oC with a treatment time of 3-7 minutes, a layer consisting of α-Fe, oxides (Fe2O, FeO) and iron FeN nitride and ε- is formed in the electrolyte, which is characterized by ammonium chloride (NH4Cl) content phases (solid solution based on iron nitride Fe3N) with a thickness of 30 μm, which is highly resistant to corrosion. [..] Read more

Abstract: The construction material during corrosion processes loses its properties, it causes deterioration of functions, loses its usefulness, applicability. One of the important aggressive environments in the building as well as agricultural, chemical and energetic industry is nitrogen, from which nitric acid may be formed. [..] Read more

Abstract: The achievements of modern surface engineering can be applied in many areas. With modern engineering materials and manufacturing techniques, the comfort and safety of life of road users and other people present on the road have substantially improved. [..] Read more

Abstract: Metallic-ceramic composites are considered as materials with functional properties depending on the production methods. In this work, bi-layered composites Ti6Al4V/Al2O3 were obtained using the spark plasma sintering (SPS) technique. [..] Read more

Abstract: The paper presents the results of research on the preparation of composites based on copper matrix reinforced with silicon carbide (SiC) contents of 0, 5, 10 and 15 wt%. Materials were compacted by one-sided pressing, followed by sintering at a temperature of 800°C for one hour. [..] Read more

Abstract: The sulphide phase of ore minerals is subject to passivation in oxidizing conditions. The kinetics of dissolution of polycrystalline sulfide minerals - the raw material of hydrometallurgy of molybdenum, copper, under conditions of variable hydrodynamics of interaction with the medium, is adequately described by the method of a rotating disk of dissolved material with a surface equally accessible to the diffusion of reagents. [..] Read more

Abstract: Laminated CuAl10Fe3Mn2-intermetallic phases composites have been produced in vacuum through reactive bonding at 875 °C using bronze and titanium foils with thickness 0.6 and 0.1 mm, respectively. During fabrication the titanium layers reacted completely and formed Ti2Cu, TiCuAl and TiCu2Al intermetallics. [..] Read more

Abstract: In the present work hot rolled AlZnMgCu alloys with and without Sc,Zr addition were studied. First, the temperature and time of annealing of hot rolling was looking for. [..] Read more

Abstract: The as-cast commercial Al-6 wt% Zn-2.5 wt% Mg-1.3 wt% Cu-0.8 wt% Fe, Si, Cr (AA7075) and AA7075-ScZr (0.19 wt% Sc-0.06 wt% Zr) alloys were investigated during isochronal annealing from room temperature up to 450 °C. Precipitation reactions were studied by microhardness, conductivity measurements and differential scanning calorimetry. [..] Read more

Abstract: Hydrogen storage (HS) performance of three Mg-xIn-yCB alloys (CB – amorphous carbon, x = 55, 64, 73; y = 10 wt%) was studied. Indium concentration covered an area of ordered structures. [..] Read more

Abstract: The surface of Nimonic 80A alloy was melted and rapidly solidified using TIG process (Tungsten Inert Gas) in order to produce a high-strength microstructure to improve cavitation erosion resistance. Cavitation tests, performed on an ultrasonic vibrator at a frequency of 20 kHz and at amplitude of 50 μm oscillations pointed out that these microstructure changes lead to significant differences in the behavior of this alloy to erosion generated by vibrator cavitation. [..] Read more

Abstract: The alloys based on intermetallic phases involving aluminum belong to group of heat resistant materials. Their physic-chemical and mechanical properties allow to apply them in the operating conditions in corrosive environment and elevated temperature. [..] Read more