Open Access Conference Proceedings

Abstract: The article deals with the evaluation of the functional surfaces of the ball valve body, which are different from other parts of the ball valve. First is the requirement of decreased roughness of the machined surface of the catch surfaces and areas where it will be used a special sealing element, and also in dimensional tolerances and, ultimately, the position tolerances as coaxiality, parallelism and perpendicularity.. [..] Read more

Abstract: Cold Gas Dynamic Spraying (CGDS) method was used in order to obtain very dense and good adhesive CoNiCrAlY-coatings deposited onto nickel-based alloy and subsequently remelted by electron beam (EB) up to depth of about 90 µm. The CGDS process- a relatively new coating technology is based on the high velocity impingement of small solid particles on the substrate. [..] Read more

Abstract: We propose a new effective method to keep the catalyst nanoparticles on the surface of bulk stainless steel 304 (SS304) to grow carbon nanotubes (CNTs). This method consists on the creation of a buffer layer of nitrided stainless steel and a top barrier layer of aluminium nitride (AlN). [..] Read more

Abstract: The paper described properties of electro-spark deposited coatings. The processes of coating formation on metal parts including electro-spark deposition involve mass and energy transport accompanied by chemical, electrochemical and electrothermal reactions. [..] Read more

Abstract: Bioactive coatings can be divided into two main groups - organic and inorganic coatings. Hydroxyapatite (HA) is well known as one of inorganic part of mammal’s bone structure and is highly recommended for use in implantology. [..] Read more

Abstract: Thanks to its unique properties such as high melting point and density, tungsten and tungsten-based alloys are commonly used in a wide range of applications. Among others, these materials are promising candidates for the plasma facing components in the future fusion reactors. [..] Read more

Abstract: In this study, suspension plasma spraying of sub-stoichiometric titania was attempted using hybrid water/argon stabilized plasma torch (WSP-H). Porous coatings with fine cauliflower-like columnar microstructure were successfully deposited in two separate experiments with different power levels of the plasma torch. [..] Read more

Abstract: Tungsten carbide (WC) is in the groups hard materials, which is used for cutting tool. The substrate sample was coated with device PVD. [..] Read more

Abstract: The surface properties of hydroxyapatite (HA) deposited on the Ti-6Al-4V substrates by plasma spraying were studied. Two different plasma spray technologies (hybrid plasma spray system (WSP-H) and conventional atmospheric plasma spray technology (APS)) and two various feedstock (suspension for WSP-H and powder for APS) were used for deposition of HA layers potentially suitable for bio-applications. [..] Read more

Abstract: The paper presents the properties of diamond-like carbon (DLC) coatings deposited by PVD technique. Their properties were determined by the analysis of the structure and texture of the films and by hardness and tribological testing. [..] Read more

Abstract: The foregoing thesis presented different viabilities of the vibratory tumbling as a processing of the finishing surface of sprocket wheels. The sprocket wheels were EN AW 2017A aluminum of alloy and they were made with the method of machining. [..] Read more

Abstract: The paper deals with the investigations which consisted in conducting the process of hardfacing of steel sheets from X10CrMoNb9-1 steel. There were two different coatings marked to sheets through the TIG method. [..] Read more

Abstract: The results of corrosion resistance of aluminum alloy 5754 used as a construction material in the automotive industry has been presented in the paper. The samples of aluminum alloy were exposed to acetic salt spray, containing copper chloride as a corrosion initiator, according to ISO 9227: 2012 and the following methods: linear polarization, potentiodynamic cyclic voltametry according to PN-EN ISO 10271: 2012 and impedance spectroscopy according to PN-EN ISO 16773: 2009. [..] Read more

Abstract: The paper describes processes of edge deburring and surface polishing with ceramic tools based on aluminium oxide. It presents the construction of basic types of tools and their practical industrial applications, and evaluates the influence of machining parameters on surface roughness.. [..] Read more

Abstract: The article presents the impact of cutting inserts with coatings on the roughness of the milled surface. Two types of coated steel inserts were selected for the research purpose. [..] Read more

Abstract: The purpose of this paper is to analyze mechanical properties of steel long weld structures. The main role of welding conditions in connected with materials, alloy elements in steel and filer materials, welding technology, state of stress and temperature. [..] Read more

Abstract: In the article, the authors attempted to quantify  description of the Al2O3/WS2 oxide layers. The description were carried out using image analysis and stereological methods. [..] Read more

Abstract: The paper describes a non-parametric approach to the statistical analysis performed on data obtained during investigation on the airfoil blade traces. This approach releases us from limits of many conditions. [..] Read more

Abstract: The surface layer properties of super-hard materials may be modified by a laser beam treatment and the regular texturization is one of possible approaches. The designed experiment was conducted based on two main controlled factors: the average diameter of cavities and the level of the blackening. [..] Read more

Abstract: AA 6101 wire alloy has been used in the electric transmission lines in company of the cable industries of Biskra (Algeria) for several years. In this work, the AA 6101 alloy was subjected to recrystallization annealing treatment at 400 °C and holding for 30 min, to see the effects of this treatment on the mechanical and electrical properties of drawn Al-Mg-Si wire. [..] Read more