Open Access Conference Proceedings

Abstract: Despite its relatively high cost, copper is still the most popular electroconductive material. Its electroconductivity can be affected via structure modifications introduced by shear mixing, i.e. [..] Read more

Abstract: This study deals with new generation of ODS alloys strengthened with a high-volume fraction of Y-nanooxides of 4 %. The ODS alloy is produced using powder metallurgy consisting of mechanical alloying of input powders followed by hot consolidation of canned powder using rotary swaging technology and secondary recrystallization to provoke coarse-grained microstructure. [..] Read more

Abstract: The paper deals with digital image processing methods, related to rolling mill. Image processing is a method, which is used to harvest useful data from digital images. [..] Read more

Abstract: This work deals with the study of structure and physical properties of 316 L austenitic stainless steel prepared by additive manufacturing and subsequently processed by the technology of rotary swaging. The semi-finished products were printed on a Renishaw 3D printing machine using the SLM (Selective Laser Melting) method, during which the metal powder is gradually sintered via cladding of individual layers using a powerful laser. [..] Read more

Abstract: The paper presents a modified microstructure evolution model that better considers the influence of strain induced precipitation (SIP) on static recrystallisation (SRX) kinetics. This is achieved by calculating the time for the 50 % softening t0.5 (s) by static recrystallisation separately for the situation when it does not occur and separately when SIP occurs. [..] Read more

Abstract: 42CrMo4 steels are widely used in automotive, aerospace applications and machine tools where wear resistance needs to be maintained throughout its lifetime. It is possible to change the initial microstructure of these steels with various heat treatments and improve their mechanical properties. [..] Read more

Abstract: In this paper, the effects of hydrogen charging and aging treatment on the cyclic plasticity of a S32304 lean duplex steel were investigated. The surface modifications were analyzed using atomic force microscopy and scanning electron microscopy. [..] Read more

Abstract: During the rotary friction welding process is a joint made at the interface of two materials using the parameters such as temperature, pressure, relative motion speed and the secondary parameter is time. This method offers a wide range of applications, especially when are welded rotating parts. [..] Read more

Abstract: The presence of primary Nb-particles and their morphology affected by changes in nickel concentration in the as-cast microstructure of stainless steels with 18 wt% Cr were analysed. The formation of primary particles is due to the decreasing solubility during cooling and solidification of the steel melt, and additionally, segregation of alloying elements occurs during solidification, which contributes to the formation of particles. [..] Read more

Abstract: The topic of low density steels, also called light weight steels, has gained new interest in the last decade. These steels have remarkably low densities around 6.7 kg/l. [..] Read more

Abstract: FRACTESUS (Fracture mechanics testing of irradiated RPV steels by means of sub-sized specimens) is a project supported by the European Commission HORIZON2020 programme. The project started in October of 2020 and will be finished in September of 2024. [..] Read more

Abstract: To ensure proper maintenance and remaining lifespan of railway axles it is important to correctly estimate its mechanical properties. In past many methods were introduced and standardized. [..] Read more

Abstract: Surface hardening is a process of forming high hardness layer at the surface of metal object, thus improving wear resistance without the need for hardening whole section. It allows reduce stress, deformations and cost of the finished product compared to through thickness hardening. [..] Read more

Abstract: Heat treatment is usually preferred to achieve the pre-determined material properties of steel components thereby suited for several engineering applications. Gas quenching after austenitisation in vacuum is an established process for this purpose, as it is clean and environment friendly. [..] Read more

Abstract: Hydrogen has a strong potential for use as an alternative fuel provided that it can be stored in a safe and efficient way. One possibility is to store it as a solid hydride using suitable metals or alloys. [..] Read more

Abstract: Laser cladding, which is surface modification technology, is based on melting with a laser beam by spraying powder on the base metal and generated by depositing the layers. In this study, the Metco 42C martensitic stainless steel powder material was cladded on the FGS600-3A ductile cast iron used in sheet metal forming molds. [..] Read more

Abstract: Atmospheric corrosion can seriously affect the performance of steel structures over long periods of time. Standards and codes represent the general guidelines and suggest general protection techniques to prevent structures from corrosion damage. [..] Read more

Abstract: The possible differences in the protective performance of Zn and MIO pigmented epoxy coatings for different times of exposure performed during 533 hrs in 0.05 M NaCl were confirmed by new interpretation of ENA data in combination with single frequency (1 kHz) impedance test results. By this approach changes of resistivity and dielectric constant (identified on tested coating system at different times of exposure) can be related to delamination tendency as well as changing possibilities for new defects formation in tested type of coating for different time of exposure.. [..] Read more

Abstract: In the present study, surface laser boronizing technique was applied to improve wear resistance of maraging steel (MSt) parts manufactured by selective laser melting (SLM). Samples for investigation were manufactured of DIN 1.2709 steel powder using Concept Laser M3 equipment. [..] Read more

Abstract: Boronizing is a thermochemical process in which the boron atoms are introduced into the steel surfaces. During this process, the boride layers with high hardness, wear- and corrosion-resistance are formed. [..] Read more