Open Access Conference Proceedings

Abstract: This paper briefly describes how to estimate numerically the quantitative uncertainty of potentiodynamic polarization curves obtained from a charge transfer controlled reaction in the case of working electrodes made from C45 steel with specific coatings (WC-Co, WC-Co-Al2O3 and a reference without coatings). The processed dataset was created during a real physicochemical experiment, but potentiostat/galvanostat transformed the dataset of measurements into parameters of Tafel’s lines without uncertainty estimation. [..] Read more

Abstract: This paper deals with the influence of the EDM process parameters on the surface roughness of AlNiCo alloys. A BP 93L machine with an electronic generator was used to perform the machining. [..] Read more

Abstract: This article presents the results of studying the structural-phase state changes of Ti-Al coatings on the surface of titanium synthesized by mechanical alloying. The study of the substrate-coating boundary showed the practical absence of traces of diffusion of the coatings in the titanium substrate after the mechanical alloying process. [..] Read more

Abstract: The paper devotes to study of hydrogen and deuterium storage and research of capturing hydrogen and deuterium in tungsten samples irradiated with plasma beam. The paper shows that some changes occur in the surface like relief propagation caused by heterogeneous surface etching after irradiation with hydrogen plasma. [..] Read more

Abstract: Planar micro structuring of thin metallic layers allows to achieve required surface properties of metallic layers covering bulk materials. Recently, the arrangement of micro holes or pillars placed around the primary spiral according to a phyllotactic model was presented. [..] Read more

Abstract: The induction hardening is a well-developed technology in many industrial applications, e.g. automotive, tool manufacturing, casting technology, sheet metal forming etc. [..] Read more

Abstract: The hybrid coatings prepared on aluminum substrates were the object of a study of their tribological properties. An amorphous oxide layers Al2O3 were obtained on aluminum alloy EN AW 5251. [..] Read more

Abstract: Additive manufacturing offers great potential for producing metal parts with a high degree of geometrical complexity and high mechanical properties. However, the number of alloys in the form of powder material that can be applied in these technologies are limited at the moment. [..] Read more

Abstract: This paper represents the layer-by-layer synthesis results of the specimens obtained by laser cladding (LC) method. For basic material was used heat-resistant nickel alloy Inconel 625 constituting spherical shape powder. [..] Read more

Abstract: The as-cast AA5754 and AA6082 alloys with Sc,Zr-addition were investigated during isochronal annealing from room temperature up to 510 °C. Precipitation reactions were studied by electrical resistivity, hardness measurements and differential scanning calorimetry. [..] Read more

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

Abstract: Using aluminum bronze and titanium foils, CuAl10Fe3Mn2 - intermetallic phases laminated composites have been fabricated through reactive bonding at 875 °C in vacuum. Investigations were concerned with the structural transformations of a bronze - Ti couple boundary. [..] Read more

Abstract: Hot-compression tests of the alloys Ni-Al-Zr were performed. The tests were performed on the equipment Gleeble 3800 at 800 °C. [..] Read more

Abstract: Nd-Fe-B permanent magnets are key materials in the electric power system and they are indispensable for the future success of environmentally beneficial technologies. The hysteretic characteristics of sintered Nd-Fe-B magnets are highly sensitive to their microstructure and composition of phases. [..] Read more

Abstract: This paper presents the results of research on the possibilities of producing and using Cu / Al2O3 composite material fabricated by powder metallurgy. The starting materials for obtaining the composites were commercial powders: Cu and Al2O3. [..] Read more

Abstract: A new method is proposed to estimation of hydrogen pressure in equilibrium with hydride phase in a hydrogen storage material. It is applicable both for hydrogen absorption and desorption in cases where the hydride phase is formed by nucleation and growth mechanism. [..] Read more

Abstract: Different welding parameters (welding current 165 A, 180 A, and 200 A) and weld groove angle values were changed in order to evaluate mechanical properties of Tungsten Inert Gas (TIG) welded. Different groove angles (60°, 70°, 80°, and 90°) have been chosen to identify the peculiarities of weldment structure formation and the resultant quality of the weld. [..] Read more

Abstract: A metal matrix composite - consisting of a matrix of medium entropy alloy CoCrNi and Mo as reinforcement - is reported on the present study. The composite was produced by mechanical alloying (MA) in combination with spark plasma sintering (SPS). [..] Read more

Abstract: In 2018 it is 150 years since D.K. Chernov, the metallurgical science expert, made the report on the results of the research of the Fe-C alloy samples and ingots and for the first time ascertained the presence of the critical points, i.e. [..] Read more

Abstract: The paper investigates the influence of the layer thickness and the laser spot diameter in the process of selective laser melting, as well as subsequent heat treatment on the structural-phase composition and mechanical properties of the manufactured parts. The possibility of manufacturing parts with a tailored structure from an Inconel 718 superalloy using selective laser melting is demonstrated by varying the technological parameters of the process. [..] Read more