WA KALENGA Michel Kalenga University of Johannesburg, Johannesburg, Republic of South Africa, michelk@uj.ac.za; wnheta@uj.ac.za
Co-authors: NHETA Willie
Abstract: Carbon footprint has, for decades, become a centre of research regarding environmental threats that the world still faces. The impact of pyrometallurgical processes on the environment has played and still plays a role in the climate change. [..] Read more
FOGARAŠ Lukáš TUKE - Technical University of Košice, Košice, Slovak Republic, EU, lukas.fogaras@tuke.sk
Co-authors: HUBATKA Slavomír DEMETER Peter BUĽKO Branislav DEMETER Jaroslav HRUBOVČÁKOVÁ Martina ŠMIGURA Peter PYLYPENKO Andrii
Abstract: Hydrodynamic conditions in the tundish play a crucial role in ensuring the quality of liquid steel and the effectiveness of refining processes during continuous casting. The present study focuses on the numerical comparison of flow characteristics in a four-strand tundish under various geometric configurations of impact pads and positional deviations of the ladle shroud. [..] Read more
KOZA Kamil Institute of Technology and Business in České Budějovice, Faculty of Technology, Department of Applied Technologies and Materials Research, České Budějovice, Czech Republic, EU, kamil.koza@vste.cz, gryc@vste.cz, socha@vste.cz, svizelova@vste.cz
Co-authors: GRYC Karel SOCHA Ladislav SVIŽELOVÁ Jana KUBEŠ Roman SOCHACKÝ Václav
Abstract: Computed tomography (CT) was used to evaluate the internal quality of the zinc alloy castings. The castings are produced by high pressure die casting process from ZP0430 zinc alloy, which contains also aluminium and copper. [..] Read more
DEMETER Peter FMMR, TUKE - Faculty of Materials, Metallurgy and Recycling, Technical University of Košice, Slovakia, EU, peter.demeter@tuke.sk
Co-authors: BUĽKO Branislav FOGARAŠ Lukáš HUBATKA Slavomír DEMETER Jaroslav MAŠLEJOVÁ Alica DUBEC Dominik MIŠKOVIČOVÁ Zuzana HRUBOVČÁKOVÁ Martina ŠMIGURA Peter
Abstract: This study is focused on the numerical analysis of molten steel flow in the CC mold of a continuous casting machine for two different steel grades - ferritic low-carbon stainless steel 409L and normalized structural steel S275N, by EN 10025-3. The aim was to identify the influence of the physical and metallurgical properties of these steels on flow behavior and thermal conditions in the solidification zone. [..] Read more
KOMINEK Jan BUT – Brno University of Technology, Faculty of mechanical engineering, Brno, Czech Republic, EU, jan.kominek@vut.cz
Co-authors: KOTRBACEK Petr ADRIAEN Pepjin
Abstract: This study presents the experimental investigation of Heat Transfer Coefficient (HTC) distributions conducted within the framework of the European RFCS SmartCool project. The SmartCool project focuses on the development and implementation of a smart-controlled actuator system designed to homogenize the temperature distribution across the width of the transfer bar in hot strip mills. [..] Read more
KOZINA Franjo University of Zagreb Faculty of Metallurgy, Sisak, Croatia, EU, fkozin@simet.hr, zovko@simet.hr
Co-authors: ZOVKO BRODARAC Zdenka PETRIČ Mitja BURJA Jaka
Abstract: The goal of this review is to examine the possible use of ex-post quantitative fractography in development of aircraft design concepts. The resent investigations using quantitative fractography for the reconstitution of fatigue process history indicated limitations of fatigue crack growth and material toughness-based tests in interpreting fatigue behaviour. [..] Read more
Co-authors: GOSPODINOV Danail ILIEVA Mariana FERDINANDOV Nikolay DRAGANOV Ivo
Abstract: One of the major benefits of low-carbon steels is their cost-effectiveness which makes them a preferable choice for a wide range of applications. In this study mechanical behaviour of mild low-carbon steels is investigated, especially the change of yield strength and tensile strength after plastic deformation and a specific type of heat treatment - firing of enamelled steels.Furthermore, the present work includes investigations about opportunities for computer simulations and prediction of changes in mechanical properties. [..] Read more
MARUŠÁKOVÁ Daniela CVŘ – Centrum Výzkumu Řež, Hlavní 130, Husinec-Řež, 250 64, Czech Republic, EU, daniela.marusakova@cvrez.cz
Co-authors: FUKAČ Rostislav MELICHAR Tomáš VÍT Jan
Abstract: A characteristic feature of advanced energy devices, such as Generation IV nuclear reactors, is operation combining high temperatures and pressures of working media. One of the key issues is ensuring the tightness of joints of metal components at very high temperatures (above 600 °C). [..] Read more
BAŁAGA Zbigniew Czestochowa University of Technology, Czestochowa, Poland, EU, zbigniew.balaga@pcz.pl
Co-authors: OPYDO Michał DUDEK Agata
Abstract: This paper presents the results of a failure analysis of a suspension spring from a passenger vehicle, with a focus on the impact of long-term operation under real road conditions. The investigated spring, originating from a 2008 Peugeot vehicle, failed after 14 years of service and approximately 225,000 km of mileage. [..] Read more
DLOUHÝ Jaromír COMTES FHT a.s., Průmyslová 995, 334 41, Czech Republic, EU, jdlouhy@comtesfht.cz
Co-authors: MOTYČKA Petr MAŠEK Bohuslav NOVÝ Zbyšek
Abstract: The QP process enables to achieve excellent combination of strength and ductility in low alloyed steels. However, the process itself is rather difficult to implement into a serial production of high strength parts as it is demanding precisely controlled temperature cycle for each part. [..] Read more
KANDER Jan MATERIÁLOVÝ A METALURGICKÝ VÝZKUM, Ostrava, Czech Republic, EU, jan.kander@mmvyzkum.cz
Co-authors: ČÍŽEK Petr ROŽNOVSKÁ Gabriela JONŠTA Petr
Abstract: The European Union is committed to replacing natural gas with hydrogen by 2050 as part of its search for clean and sustainable energy sources. Given these goals, it is crucial to examine the materials used in current gas infrastructure and assess their susceptibility to hydrogen embrittlement, a common form of material degradation induced by hydrogen. [..] Read more
NOVÁK Dalibor VSB - Technical University of Ostrava, Ostrava, Czech Republic, EU, dalibor.novak@vsb.cz
Co-authors: ŘEHÁČKOVÁ Lenka NOVÁK Vlastimil MATÝSEK Dalibor KAWULOKOVÁ Monika SMETANA Bedřich
Abstract: Chromium low alloy steels exhibit a favourable balance of enhanced corrosion resistance and mechanical strength, characteristics that are critically beneficial for a wide array of structural applications. The distinct properties of these materials, in conjunction with their cost-effectiveness, render low-alloy chromium steels particularly advantageous across numerous industries without compromising safety or performance. [..] Read more
KUBOŇ Zdeněk 1MATERIALS AND METALLURGICAL RESEARCH s.r.o., Ostrava, Czech Republic, EU, creep.lab@mmvyzkum.cz
Co-authors: JANČÍKOVÁ Helena ROŽNOVSKÁ Gabriela
Abstract: The article describes the corrosion attack and premature damage in stainless steel drinking water piping installed in a hospital. After only two years of service, intensive pitting and crevice corrosion was observed near welded joints, resulting in wall perforation. [..] Read more
DULIŠKOVIČ Josef Research and Testing Institute Plzen Ltd., Pilsen, Czech Republic, EU, duliskovic@vzu.cz, jirkova@vzu.cz, kasl@vzu.cz
Co-authors: JIRKOVÁ Hana KASL Josef
Abstract: The growing concern for environmental sustainability in industrial processes has led to the development of an environmentally friendly electrolyte for hydrogen embrittlement testing of steels. In this study, a new electrolyte composed of sodium dihydrogen phosphate (NaH2PO4), disodium hydrogen phosphate (Na2HPO4), L-cysteine (C3H7NO2S), and citric acid (C6H8O7) was tested as an alternative to the conventional 0.5 N sulfuric acid (H2SO4) electrolyte combined with thiourea (CH4N2S). [..] Read more
HRABOVSKÁ Kamila VSB - Technical University of Ostrava, Department of Physics, Ostrava, Czech Republic, EU, kamila.hrabovska@vsb.cz, ondrej.zivotsky@vsb.cz, lucie.gembalova@vsb.cz
Co-authors: ŽIVOTSKÝ Ondřej GEMBALOVÁ Lucie SLEZÁK Martin VÁŇOVÁ Petra MATÝSEK Dalibor RUSZ Stanislav PALČEK Peter
Abstract: The study is focused on changes in the structural and physical properties of AISI 304 austenitic stainless steel subjected to severe plastic deformation at room temperature. The steel was deformed using two methods: applying compressive forces of 100 kN and 150 kN and using the Dual Rolling Equal Channel Extrusion (DRECE) technique. [..] Read more
GĄDEK-MOSZCZAK Aneta Cracow University of Technology, Cracow, Poland, EU, aneta.gadek-moszczak@pk.edu.pl
Abstract: Digital image analysis in the study of geometric structures of machine parts and engineering materials is a complex issue that the author tries to systematize and generalize, treating it as a process. The article proposes a comprehensive approach independent of the observation scale, material type, and purpose of analysis. [..] Read more
GOKHMAN Aleksandr COMTES FHT a.s., Prumyslova 995, 334 41 Dobrany, Czech Republic, EU, pavel.salvetr@comtesfht.cz
Co-authors: NOVÝ Zbyšek SALVETR Pavel KOTOUS Jakub
Abstract: The contribution of microstructure elements to the yield strength of medium carbon 54SiCr6 steel was investigated. The microstructure was examined using scanning electron microscopy, transmission electron microscopy, electron back scattering diffraction and X-ray diffraction. [..] Read more
KHAZALI Mohammad S. Al Faculty of Civil Engineering, Brno University of Technology, Veveří 331/95, 602 00 Brno, Czech Republic, EU, mohammad.sami.al.khazali@vutbr.cz
Co-authors: MIARKA Petr MALÍKOVÁ Lucie SEITL Stanislav
Abstract: Although high-strength structural steels deliver excellent strength-to-weight ratios, their fatigue reliability drops sharply once corrosion pits develop. In this study, S460 specimens were corroded in controlled salt spray cycles. [..] Read more
ROZUMOVÁ Lucia Research Centre Řež s.r.o., Husinec – Řež, Czech Republic, EU, lucia.rozumova@cvrez.cz
Co-authors: PAZDEROVÁ Martina KOŠEK Lukáš
Abstract: Among the advanced reactor designs of the fourth generation of nuclear reactors, the Lead-cooled Fast Reactor (LFR) stands out as one of six distinct types. The corrosion damage of the steels, it is caused by liquid metal acting on the structural material, which is considered a significant obstacle in the development of the fast reactors concept. [..] Read more
KROBOTOVÁ Anna Faculty of Mechanical Engineering, Technical University of Liberec, Liberec, Czech Republic, EU, anna.krobotova@tul.cz, totka.bakalova@tul.cz, michal.krafka@tul.cz, lucie.svobodova@tul.cz, magdalena.mrozek@tul.cz
Co-authors: BAKALOVA Totka KRAFKA Michal SVOBODOVÁ Lucie MRÓZEK Magdalena TOMKOVÁ Blanka KEJZLAR Pavel
Abstract: Read more
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