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Conference Proceedings - METAL 2018
27th International Conference on Metallurgy and Materials
May 23rd - 25th 2018 / Hotel Voronez I, Brno, Czech Republic, EU
www.metalconference.eu
ISSN: 2694-9296
ISBN: 978-80-87294-84-0
Proceedings of the conference were published in Web of Science and Scopus.
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KWAPISZ Marcin Czestochowa University of Technology, Faculty of Production Engineering and Materials Technology, Czestochowa, Poland, kwapisz.marcin@wip.pcz.pl, garstka.tomasz@wip.pcz.pl, knapinski.marcin@wip.pcz.pl
Co-authors:
GARSTKA Tomasz
KNAPIŃSKI Marcin
Abstract:
The paper presents the characteristics and possibilities of a mill line based on a Duo D-300 mill located at the Institute of Metal Forming and Safety Engineering at the Czestochowa University of Technology. In 2012 year has been started new laboratory semi-industrial rolling mill. [..]
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MICHALSKI Jakub VSB - Technical University of Ostrava, Ostrava, Czech Republic, EU, jakub.michalski@vsb.cz, jakub.till@vsb.cz , jana.petru@vsb.cz, stanislav.rusz@vsb.cz, frantisek.spalek@vsb.cz
Co-authors:
TILL Jakub
PETRŮ Jana
ŠPALEK František
RUSZ Stanislav
ŠVEC Jiří
Abstract:
Over the last few years, the great attention was paid to materials with grain size of diameter smaller than 1 µm. These materials were classified as Ultra-Fine Grained (UFG) materials with diameter of grains of the order of 100 to 1000 nm and nano-materials (NC) with mean diameters of grains smaller than 50 nm. [..]
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MIŁEK Tomasz Kielce University of Technology, Faculty of Mechatronics and Mechanical Engineering, Al. Tysiąclecia Państwa Polskiego 7, 25-314 Kielce, Poland, EU, tmatm@tu.kielce.pl
Abstract:
The paper presents computer modelling and experimental results of investigations on pushing through a conical die process of round bars. The calculations were carried out using the commercial code QFORM-2D, based on the Finite Element Method (FEM). [..]
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Opěla Petr VSB – Technical University of Ostrava, Ostrava, Czech Republic, EU, petr.opela@vsb.cz
Co-authors:
Schindler Ivo
Rusz Stanislav
Ševčák Vojtěch
Abstract:
The peak point coordinates (i.e. peak stress, peak strain) play a significant role in case of a flow curve description. [..]
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OPIELA Marek Silesian University of Technology, Institute of Engineering Materials and Biomaterials, ul. Konarskiego 18a, 44-100 Gliwice, Poland, EU, marek.opiela@polsl.pl
Abstract:
The paper investigates the influence of hot-working parameters on the course of thermally activated dynamic and static processes in HSLA (High Strength Low Alloy) constructional steel, containing 0.17 % C,
1.37 % Mn and microadditions of Nb, Ti, V in the amounts of 0.025 %, 0.004 % and 0.019 %, respectively. In order to determine the stess - strain curves and the kinetics of recrystallization of plastically deformed austenite, the Gleeble 3800 thermomechanical simulator was used. [..]
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PESIN Alexander Nosov Magnitogorsk State Technical University, Magnitogorsk, Russian Federation, pesin@bk.ru, pustovoitov_den@mail.ru, fimapatisonchik@inbox.ru
Co-authors:
PUSTOVOYTOV Denis
BIRYUKOVA Olesya
Abstract:
Accumulative roll bonding (ARB) is one of the severe plastic deformation methods of producing ultrafine grained laminated metal composites (LMCs). This paper is focused on LMCs consisting of dissimilar bimetal system of aluminum alloys AA1050/AA6061. [..]
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PRESZ Wojciech Institute of Manufacturing Technologies, Warsaw University of Technology – Narbutta 85, 02-524 Warsaw, Poland, EU, w.presz@wip.pw.edu.pl
Abstract:
The method of determining the tendency to galling in microforming processes is introduced. The method consists in the drawing process of the strip with a width of 1-3 mm and a thickness of 0.3-1 mm using a cylindrical tool with a radius of 2.5 mm. [..]
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MICHALSKI Jakub VSB - Technical University of Ostrava, Ostrava, Czech Republic, EU, jakub.michalski@vsb.cz, jakub.till@vsb.cz , jana.petru@vsb.cz, stanislav.rusz@vsb.cz, frantisek.spalek@vsb.cz
Co-authors:
TILL Jakub
PETRŮ Jana
ŠPALEK František
RUSZ Stanislav
ŠVEC Jiří
Abstract:
Over the last few years, the great attention was paid to materials with grain size of diameter smaller than 1 µm. These materials were classified as Ultra-Fine Grained (UFG) materials with diameter of grains of the order of 100 to 1000 nm and nano-materials (NC) with mean diameters of grains smaller than 50 nm. [..]
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SCHREK Alexander Slovak University of Technology in Bratislava, Bratislava, Slovak Republic, EU, alexander.schrek@stuba.sk
Co-authors:
ŠVEC pavol
brusilová alena
Gábrišová Zuzana
POKUSOVÁ Marcela
Abstract:
The high-strength steels and tailor welded blanks (TWB) are applied in construction of cars parts to reduction of cars weight [1, 2]. The application of these materials brings possible complicatons during the forming when it proves the considerable influence of stress-strain characteristics differences of the individual parts of TWB what result in non-constant material flow and consequently a negative movement of the weld interface [3, 4]. [..]
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STEFANIK Andrzej Czestochowa University of Technology, Czestochowa, Poland, EU, stefanik@wip.pcz.pl
Co-authors:
MRÓZ Sebastian
SZOTA Piotr
Abstract:
Limit values of the normalized Cockroft – Latham criterion for different range of temperature and strain rates may be determined by using the comparative method for the uniaxial tensile test of notched specimens. Uniaxial tension of notched specimens was performed on a multi-function metallurgical process simulator, Gleeble 3800. [..]
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STUDECKÝ Tomáš COMTES FHT a.s., Průmyslová 995, Dobřany, 334 41, Czech Republic, EU, tomas.studecky@comtesfht.cz
Co-authors:
KOUKOLÍKOVÁ Martina
RUND Martin
Abstract:
The ultra-fine grained austenitic AISI 304 stainless steel sheets were prepared using various rolling techniques. The room temperature symmetric rolling (SR) as well as the sub-zero temperature cryorolling (CR) were performed. [..]
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LATOCHA Mario VŠB – Technical University of Ostrava, Faculty of Metallurgy and Materials Engineering, 17.listopadu 15, 708 33 Ostrava, Czech Republic, ivo.schindler@vsb.cz
Co-authors:
ŠEVČÁK Vojtěch
SCHINDLER Ivo
OPĚLA Petr
KAWULOK Petr
JUHÁR Ľuboš
Abstract:
Reversible two-stand two-high laboratory mill TANDEM was used to study the effect of simulation parameters on the final properties of HSLA steel strip with 0.08 % C, 1.26 % Mn, 0.05 % Ti and 0.03 % Nb. The flat samples were heated at 1230 °C for 20 or 60 minutes and rolled from thickness of 24.0 mm to 3.2 mm by 6 passes. [..]
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TILL Jakub VSB - Technical University of Ostrava, Ostrava, Czech Republic, EU, jakub.till@vsb.cz , jakub.michalski@vsb.cz, jana.petru@vsb.cz, frantisek.spalek@vsb.cz
Co-authors:
MICHALSKI Jakub
PETRŮ Jana
ŠPALEK František
Abstract:
Achieving a very high degree of deformation in sheet metal forming is a very complex problem. It is the main prerequisite for achieving an ultra-fine grain structure in the material. [..]
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TURŇA Ján ŽP Research and Development Centre, 976 81 Podbrezová, Slovak Republic, EU, turna.jan@zelpo.sk
Co-authors:
PARILÁK Ľudovít
MAŤAŠ Pavol
KVAČKAJ Tomáš
BILÍK Jozef
Abstract:
This paper deals with optimization of roll cooling during hot rolling of tubes in stretch reducing mill (SRW) in Železiarne Podbrezová. Temperature of the tube after rolling in SRW should be higher than Ar3 as much as 30 - 50 °C. [..]
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VALEŠ Michal CTU – Czech Technical University in Prague, Prague, Czech Republic, EU, michal.vales@fs.cvut.cz
Co-authors:
CHRÁŠŤANSKÝ Lukáš
TATÍČEK František
PAČÁK Tomáš
Abstract:
Modern approaches and materials must be used to achieve mass reduction of car body parts. Important step is to depict processing of these materials in detail. [..]
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VOTAVOVÁ Helena Brno University of Technology, Heat Transfer and Fluid Flow Laboratory, Brno, Czech Republic, EU, Helena.Votavova@vut.cz, Michal.Pohanka@vut.cz
Co-authors:
POHANKA Michal
Abstract:
The manufacturing of high quality steels is connected to high temperatures at which the material reacts with the surrounding atmosphere. A layer of iron oxides (scales) is formed on the surface of the steel. [..]
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YILDIRIMOĞUZ Melih Çelik Halat ve Tel Sanayi A.Ş – Kartepe, Kocaeli, Turkey, TR, myildirimoguz@celikhalat.com.tr
Co-authors:
ESEN Sevim Gökçe
CEDİMAĞAR Murat Alper
Abstract:
The cold drawn wires are used to spring manufacturing in automotive and whiteware equipment. The most important mechanical properties of the wire used in spring production are tensile strength and minimum number of twists in the torsion test. [..]
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JURČI Peter Faculty of Materials Sciences and Technology in Trnava, Bottova 25, 917 24 Trnava, Slovakia, p.jurci@seznam.cz
Abstract:
Ledeburitic steels based on Cr- or Cr-V alloying belong to the most important cold-work tool materials for large series manufacturing. To enable high production stability, the tools must withstand various types of degradation processes. [..]
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DVORAK Jiri Institute of Physics of Materials, Academy of Sciences of the Czech Republic, Žižkova 22, CZ-616 62 Brno, Czech Republic, EU, dvorak@ipm.cz
Co-authors:
KRAL Petr
KVAPILOVA Marie
HRBACEK Karel
SKLENICKA Václav
Abstract:
Two cast and heat-treated NbC and TaC – strengthened cobalt superalloys have been developed for an investment casting of spinner discs for glass wool industry. In this work constant load creep tests in tension were carried out in argon atmosphere at three testing temperature 900, 950 and 1000 °C and at the initial applied stresses ranging from 40 to 200 MPa. [..]
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JANOUŠEK Jaromír CVR – Research Centre Řež, Plzeň, Czech Republic, EU, jas@cvrez.cz
Co-authors:
SAUZAY Maxime
POHJA Rami
HOLMSTRÖM Stefan
Abstract:
The data presented here were obtained as part of the European FP7 MatISSE project to model the softening and relaxation behaviour of Grade 91 steel under creep-fatigue loading because this type of thermal loading is a major degradation mechanism in fast reactors. The supporting tests were focused on strain controlled low cycle fatigue tests with different strain amplitudes (εa = 0.45 %, 0.35 % and 0.25 %) and different tension hold times (1 and 12 hours) for temperature 600°C. [..]
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