Open Access Conference Proceedings

Abstract: The microstructure and mechanical properties of high strength low-carbon steel, an austenitic stainless steel and the bimetallic semi-product produced from these steels were investigated. Two steels, an S700MC-type high strength low-carbon steel and a 316L-type austenitic stainless steel, were used as the layer materials for bimetallic semi-product, which was produced by electro-slag cladding. [..] Read more

Abstract: The subject of the paper is finding optimal setting of the laser power for the utility properties of the surface roughness parameter in the Additive technology by SLM method for differently large overhangs. The overhangs created on the sides, which are not supported by a supporting structure and are not designed in any way for printing by Additive technology. [..] Read more

Abstract: The continuous increase in the demand for electricity, the need to increase the power and of power units, efficiency causes the development and researches of dedicated materials. These materials work in extremely harsh conditions, they must be resistant to high temperatures, sudden changes of temperature and deformation. [..] Read more

Abstract: Austenitic stainless steel with higher chromium and nickel contain are often used as popular material in the energetics, chemical, food processing and medical applications. That material has a suitable combination of strength and corrosion properties for a given purpose. [..] Read more

Abstract: 42SiCr steel is a middle carbon, low alloyed steel with (in wt. %) 0.4C, 1.3Cr, 0.6Mn and 2Si. [..] Read more

Abstract: Modern blocks of fossil fuel power plants designed for steam temperatures above 600 °C require advanced stainless steels in superheater or reheater systems. Great attention is paid to the exploitation of new steel grades with higher material properties. [..] Read more

Abstract: At present, reinforced concrete or steel sheets with glass enamel are used for the construction of bioreactors, fermentation and storage tanks of biogas stations. To a lesser extent, corrosion-resistant steels are used and, in smaller dimensions, also plastics or fiberglass. [..] Read more

Abstract: In this paper, the authors attempt to select the technological parameters of laser padding of spring steel. The coating material was prepared in the form of Al2O3 powder paste. [..] Read more

Abstract: The article presents the research results on acoustic emission (AE) generated by process of friction stir welding of sheets made of dissimilar aluminium alloys (AW-5083 and AW-7020). Nowadays acoustic emission method is used in many fields of science, including in the diagnosis of machining and joining processes such as turning, grinding, milling, welding, etc.Friction Stir Welding (FSW) – a new technology can be successfully used for butt welding of different types of aluminium alloy sheets. [..] Read more

Abstract: One of the greatest problems of modern production techniques is the achievement of an appropriate quality at minimal costs and accompanied by the production efficiency increase. Therefore while designing the production process, the technology used should have a considerable influence on the durability and reliability of machine parts to be produced. [..] Read more

Abstract: This paper aim to be considered a review of the own researches realized in the non-conventional treatments domain in the magnetic field. The magnetic field applied under certain conditions, during the cooling process of the steel samples in the case of the improvement treatments, modifies the mechanical properties of the steel.It is important to take in consideration the improvement of the mechanical properties of a Cr-Mo alloyed steel used for the construction of the industrial machines parts. [..] Read more

Abstract: The possible effects on the protective performance of zinc-rich paints (ZRP) modified by combination of Zn dust with Al paste were investigated using electrochemical noise analysis (ENA). The role of two different Zn contents was tested for two different ZRP formulations prepared with the same vol. [..] Read more

Abstract: The paper introduces the results from experiments for surface quench hardening by hollow cathode arc discharge in vacuum. The used method is an alternative to traditional laser and plasma methods for surface hardening. [..] Read more

Abstract: Thermal spraying technology today belongs to manufacturing technologies that significantly reduce production costs while achieving high utility performance. The paper focuses on the methodology of testing of selected technological tests, especially bending and twist tests, metallography and porosity analysis of layers made by HVOF technology. [..] Read more

Abstract: Hard particles used in combination with iron-based matrix are applied in a wide range of areas. It is used for screw conveyors, de-baler knives or mining gear teeth. [..] Read more

Abstract: Research conducted in many scientific centers on the operational properties of machine parts has shown that one of the critical components affecting the fatigue strength of parts is the condition of the surface integrity of their ingredients. In the case of elements produced by electrical discharge machining, the processes occurring during removal of the material: thermal and chemical, constitute the surface layer with different properties to the bulk material. [..] Read more

Abstract: In the presented paper the subject related to the heat treatment (HT) of hot-dip zinc coating was initiated. Authors assumed that in the future widely understood optimization of coating HT will results in both mechanical as well as functional properties improvement. [..] Read more

Abstract: The paper presents the possibility of using the ImageJ computer program for image analysis as a method of assessing the proportion of sample surfaces occupied by corrosion. The program allows to calculate the size of any graphic selection and calculates the number of pixels contained in it, can also measure distances and angles between points or elements of images. [..] Read more

Abstract: The paper presents research on fractal analysis of martensitic steel X39Cr13 used for the manufacturing of surgical instruments. Fractal analysis was performed on samples subjected to sequential processes: annealing, surface treatment and sterilization. [..] Read more

Abstract: Hastelloy C-276 is commercially used representative of Ni-based superalloys family which is widely applied due to good corrosion and wear resistance. In this work the HVOF sprayed and post heat treated coatings of Hastelloy C-276 are studied. [..] Read more