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Conference Proceedings - METAL 2017
26th International Conference on Metallurgy and Materials
May 24th - 26th 2017 / Hotel Voronez I, Brno, Czech Republic, EU
www.metalconference.eu
ISSN: 2694-9296
ISBN: 978-80-87294-79-6
Proceedings of the conference were published in Web of Science and Scopus.
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SCHREK Alexander Slovak University of Technology in Bratislava, Bratislava, Slovak Republic, EU
Co-authors:
ŠVEC Pavol
Abstract:
The forming properties and simulated side impact crash tests of two types of B-pillar reinforcements were analysed. The first B-pillar was drawn from simple blank made of dual phase steel DP600 with thickness of 1.2 mm. [..]
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SOBOTKA Jiří TUL - Technical University of Liberec, Studentská 1402/2, Liberec 1, 461 17, Czech Republic, EU, jiri.sobotka@tul.cz, pavel.solfronk@tul.cz, michaela.kolnerova@tul.cz, david.korecek@tul.cz
Co-authors:
SOLFRONK Pavel
KOLNEROVÁ Michaela
KOREČEK David
Abstract:
On the materials for car-bodies are posed quite tough requirements. As the most important of them there are tendencies to still lower car-body weight (to apply lightweight materials) as well as on the other hand also effort to improve its safety because of passengers. [..]
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KODZHASPIROV Georgii Peter the Great St.Petersburg Polytechnic University, St.Petersburg, Russian Federation, gkodzhaspirovr@gmail.com, maxteen@list.ru
Co-authors:
TERENTYEV Maxim
Abstract:
The hot deformation behavior of a modified nickel-based Nimonic 263 superalloy, based on the physical simulation using torsion tests at different deformation temperatures (1200°C, 1050°C and 900°C) and strain rates (0.01, 0.1 and 1 s-1) has been studied. The flow stress curves showed an initial strain-hardening followed by a peak stress revealing the occurrence of dynamic recrystallization. [..]
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THOMAS Piotr Department of Applied Computer Science and Armament Engineering, Faculty of Mechatronics and Machine Design, Kielce University of Technology, Kielce, Poland, EU, thomas@tu.kielce.pl
Abstract:
The experimental results of the combination extrusion process for ENAW-1050A aluminium alloy are presented. Depending on the punch and die sizes used, the tests were performed for three different values of relative strain in backward direction, 2, and a constant strain in forward direction, 1. [..]
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VALEŠ Michal CTU – Czech Technical University in Prague, Prague, Czech Republic, EU
Co-authors:
PAČÁK Tomáš
TATÍČEK František
Abstract:
Due to environmental concerns and safety regulations in the automotive industry the development of strong and lightweight cars has been a very significant topic in the last years. One of possible solutions to this matter is to use materials with lower density or lower thickness. [..]
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VOTAVOVÁ Helena Brno University of Technology, Heat Transfer and Fluid Flow Laboratory, Brno, Czech Republic, EU, votavova@lptap.fme.vutbr.cz, pohanka@fme.vutbr.cz
Co-authors:
POHANKA Michal
Abstract:
Hydraulic descaling is essential to obtaining a high-quality surface in hot-rolled steel. Descaling removes mill scales (mainly iron oxides) from the surface using high-performance water jets which break the structure of the scales and washes them off the steel strip. [..]
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ZHUCHKOVA Tatiana LSTU - Lipetsk State Technical University, Lipetsk, Russian Federation
Co-authors:
KOCZURKIEWICZ Bartosz
SHKATOV Valeriy V.
MAZUR Igor P.
Abstract:
In the article examined dependence of grain growth from soak time and temperature. It is researched influence of an initial grain size on stress-strain curves behaviour of steel C45, discussed the significance of this parameter in creation of prediction models of hot forming processes. [..]
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Fajkoš Rostislav BONATRANS GROUP a.s., Revoluční 1234, 735 94 Bohumín, Czech Republic, EU
Co-authors:
Zima Radim
Strnadel Bohumír
Abstract:
A new surface induction hardening technology was for the first time in Europe developed in BONARTANS GROUP Company for the purpose of increasing the safety and resistance of railway axles to fatigue damage. The operation of railway axles should fulfil two main demands: higher safety and low operation costs. [..]
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TESAŘ Jiří UWB - University of West Bohemia, Plzeň, Czech Republic,tesar@ntc.zcu.cz
Co-authors:
SKÁLA Jiří
ŠVANTNER Michal
NOVÁK Matyáš
Abstract:
Mechanical testing and cyclic fatigue testing belong to the important material examinations. Standard fatigue testing is mostly time-consuming and needs a number of identical samples that makes the testing expensive. [..]
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SKALNÝ Pavel VSB - Technical University of Ostrava, Ostrava, Czech Republic, EU
Co-authors:
PECHA Marek
Abstract:
Fracture surfaces of X70 steel DWTT broken samples are analysed using new surface evaluation concept. The presented approach is an alternative to an expert determining a ratio between the ductile and brittle fracture area. [..]
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KUČERA Pavel VÍTKOVICE CYLINDERS Inc., Ruská 24/83, Ostrava, Czech Republic, EU, pavel.kucera.@vitkovice.cz
Co-authors:
MAZANCOVÁ Eva
Abstract:
Paper deals with the martensitic stainless steel (MSS) after reversed extrusion and broaching, quenching into polymer from austenitization temperature of 1130 °C and subsequently tempered at 480 °C with final cooling in the air. Wall thickness of cylinders corresponded to 5 mm. [..]
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DI GABRIELE Fosca Centrum Vyzkumu Rez, CVR, Husinec-Rez, Czech Republic, fosca.di_gabriele@cvrez.cz
Co-authors:
LORINCIK Jan
CHOCHOLOUSEK Michal
HOJNA Anna
Abstract:
The ferritic martensitic steel T91 is among the candidate materials for internal structural components of future Heavy Liquid Metal cooled reactors. The position of T91 on the list of the candidate materials is now being questioned due to the evidence of its sensitivity to liquid metal embrittlement (LME), mainly in PbBi eutectic. [..]
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SCHMIDOVÁ Eva University of Pardubice, Faculty of Transport Engineering, Pardubice, Czech Republic, eva.schmidova@upce.cz
Co-authors:
CULEK Bohumil
HOJKA Přemysl
Abstract:
Paper presents the analyses of high strength steels type of MnB5, widely used for auto-body passive safety parts. Different surface treatment towards to weldability optimization was subjects of performed experiments. [..]
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CHUMANOV Ilya South Ural State University (national research university), Faculty of Engineering and Technology, Zlatoust, Russian Federation
Co-authors:
ANIKEEV Andrey
Abstract:
Heat treatment is the most widespread treatment of metal products. The modes of heat treatment are developed for most existing metals. [..]
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SKUBISZ Piotr AGH University of Science and Technology in Cracow, Department of Metals Engineering and Industrial Computers Science, Mickiewicz 30 Ave, Cracow, Poland
Abstract:
The presented study is focused on elaboration of the processing conditions of forging and controlled cooling for medium-carbon steel alloyed with micro additions, so as to meet the requirements of special civil engineering applications. Based on assumption of utilization of the heat attained in the forged part after hot deformation, austempering cycles were investigated so as to meet the microstructure-property combination required by special application. [..]
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SELYUTINA Nina Saint Petersburg State University, Saint Petersburg, Russian Federation
Co-authors:
PETROV Yuri
Abstract:
Dynamic yield stress values predicted within the structural-temporal approach based on the incubation time concept and those found from the popular empirical Johnson–Cook and Cowper-Symonds formulas and its known modification are compared with the examples of high strength steels and nickel alloy subjected to high-rate plastic deformation. It is shown that the structural–temporal approach is an efficient and convenient tool for calculations in a much wider range of deformation rates. [..]
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ŽĎÁNSKÝ Ondřej University of West Bohemia, Plzen, Czech Republic, EU
Co-authors:
KŘÍŽ Antonín
ŠIMEČEK Jiří
Abstract:
The key characteristic of austenitic Hadfield steel is high resistance to the abrasion wear. Different applications mean various operating conditions and different types of abrasive wear.This paper compares the two abrasive resistance testing methods on rolled sheets of manganese (Hadfield) steel. [..]
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KAIJALAINEN Antti Materials and Production Engineering – University of Oulu, Oulu, Finland, EU
Co-authors:
SAASTAMOINEN Ari
HANNULA Jaakko
HEIKKALA Jouko
KESTI Vili
SUIKKANEN Pasi
PORTER David
KÖMI Jukka
Abstract:
In the present study, direct-quenched steel with and without tempering at 600 °C has been studied in order to evaluate the possibilities of widening the range of strengths that can be produced from a single base composition. Microstructural studies of direct-quenched (DQ) and direct-quenched and tempered (DQT) steels showed that, in both cases, the microstructure consisted of mainly bainite formed from highly pancaked prior austenite grains, the main difference being a larger carbide size in the tempered condition. [..]
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KONSTANTINOV Dmitrii Nosov Magnitogorsk State Technical University, Magnitogorsk, Russian Federation
Co-authors:
KORCHUNOV Alexey
SHIRYAEV Oleg
EMALEEVA Dinara
CHUKIN Mikhail
Abstract:
Cold-drawn high-carbon steel wire with pearlite microstructure is one of the most popular raw material for modern reinforcing ropes. Lamellae thinning, changes in interlamellar interface and metallographic texture, strain localization are the main property-forming phenomena in the wire drawing process. [..]
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JURČI Peter Faculty of Materials Sciences and Technology in Trnava, Paulínská 16, 917 24 Trnava, Slovakia
Co-authors:
PTAČINOVÁ Jana
HUDÁKOVÁ Mária
DOMÁNKOVÁ Mária
Abstract:
Favourable impact of sub-zero treatment on variety of important properties of tools is known over a long period. Alternatively, metallurgical principles responsible for elevated hardness, improved wear performance, changes in the tempering response and toughness, and better dimensional stability are known only over the last few years, and they have never been presented in all their complexity. [..]
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