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Conference Proceedings - METAL 2015
24th International Conference on Metallurgy and Materials
June 3rd - 5th 2015 / Hotel Voronez I, Brno, Czech Republic, EU
www.metalconference.eu
ISSN: 2694-9296
ISBN: 978-80-87294-58-1
Proceedings of the conference were published in Web of Science and Scopus.
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OSTROUSHKO Dmytro ÚMV-SAV, Wattsonova 47, 040 01 Košice, Slovak Republic, EU
Co-authors:
SAKSL Karel
BALGA Dušan
SZABO Juraj
DURISIN Martin
MILKOVIČ Ondrej
ZUBKO Pavol
Abstract:
A series of high entropy alloys (HEAs), Cr1-xCuxMnFeNi, was produced by a vacuum arc-melting method. The multi-element systems can crystallize as a single phase, despite containing multiple elements with different crystal structures which often exhibit unusual properties. [..]
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HOLEC Jan Czech Technical University in Prague, Faculty of Mechanical Engineering, Department of Materials Engineering
Co-authors:
CEJP Jiří
Abstract:
This paper assesses the possibilities of graphitic cast iron parts and components of hydraulic turbines. The experimental program evaluated the behavior of spheroidal and vermicular graphite under conditions which simulated challenging work environment hydraulic machines. [..]
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HASEGAWA Kunio Center of Advanced Innovation Technologies, VSB-Technical University of Ostrava, Czech Republic, EU
Co-authors:
STRNADEL Bohumir
LACROIX Valery
Abstract:
Delamination or laminar flaws were sometimes detected during manufacturing and/or plant operations. A laminar flaw is a subsurface flaw parallel to the rolling direction of the plate. [..]
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KUČERA Pavel Vitkovice Cylinders a.s., Technical department, Ostrava, Czech Republic, EU, pavel.kucera@vitkovice.cz
Co-authors:
MAZANCOVÁ Eva
Abstract:
Steel 34CrMo4 is world widely used steel type for the variety of products, for example forgings, castings, shafts, bars etc. Desired mechanical properties of mentioned steel can be achieved by various treatments such as in a metallurgical process by titanium, niobium, vanadium, zircon or nitrogen microalloying. [..]
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JUNEK Michal CTU in Prague, Faculty of Mechanical Engineering, Karlovo náměstí 13, Praha 2, Czech Republic, EU
Co-authors:
JANOVEC Jiří
Abstract:
For many years, low alloy CrMo(V) creep-resistant steels are applied for parts in the construction of energy and chemical structural units working under creep conditions (temperature about 550 °C and pressure about 15 MPa). These steels most often include creep-resistant steel 13CrMo4-4 (ČSN 15 121), 14MoV6-3 (ČSN 15 128), 10CrMo9-10 (ČSN 15 128). [..]
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KASL Josef Research and Testing Institute Plze, Ltd., Pilsen, Czech Republic, EU kasl@vzuplzen.cz, jandova@vzuplzen.cz, chvostova@vzuplzen.cz
Co-authors:
JANDOVÁ Dagmar
CHVOSTOVÁ Eva
Abstract:
Creep test to the rupture of the dissimilar weld joint made of COST FB2 and COST F martensitic steels was carried out at temperatures ranging from 550°C to 650°C in the stress range from 70 to 220 MPa. Creep rupture strength was evaluated using Larson-Miller parameter. [..]
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ŠVANTNER Michal UWB - University of West Bohemia, Pilsen, Czech Republic, EU, msvantne@ntc.zcu.cz, petrahon@ntc.zcu.cz
Co-authors:
HONNEROVÁ Petra
VOLÁK Josef
Abstract:
Active thermography is an advanced experimental procedure, which uses a non-contact measurement of tested materials thermal response after their external excitation. The material can be excited by a direct heating or using thermo-physical effects. [..]
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JANDOVÁ Dagmar Research and Testing Institute Plzeň, Plzeň, Czech Republic, EU, jandova@vzuplzen.cz
Co-authors:
FEKETE Balazs
KASL Josef
JÓNI Bertalan
Abstract:
The fatigue properties and microstructure of 08Ch18N10T steel used for production of the interior of a pressure water reactor VVER 440 were investigated. The influence of the service conditions was simulated using thermo mechanical strain controlled low cycle fatigue tests in the range from 150°C to 270°C. [..]
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STRNADEL Bohumír Center of Advanced Innovation Technologies - VSB-Technical University of Ostrava, Ostrava, Czech Republic, EU, bohumir.strnadel@vsb.cz, kunioh@kzh.biglobe.ne.jp, pavel.skalny@vsb.cz
Co-authors:
HASEGAWA Kunio
SKALNÝ Pavel
Abstract:
Fracture surfaces of X70 steel DWTT broken samples are analyzed using statistical methods and fractal concepts. Applying self-affine fracture profile construction method and the first return probability method the Hurst exponent of ductile fracture areas has been found. [..]
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JURČI Peter Slovak University of Technology in Bratislava, Faculty of Materials Sciences and Technology in Trnava,Trnava, Slovakia, EU
Co-authors:
DOMÁNKOVÁ Mária
PTAČINOVÁ Jana
HUDÁKOVÁ Mária
Abstract:
The microstructure of sub-zero treated Vanadis 6 tool steel has been examined with reference to the same material without the application of sub-zero treatment. Changes in the microstructure were recorded using light microscopy, scanning electron microscopy and transmission electron microscopy. [..]
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FROCISZ Łukasz AGH University of Science and Technology, Faculty of Metals Engineering and Industrial Computer Science, Av. A. Mickiewicza 30 30-059 Krakow, e-mail address: lfrocisz@agh.edu.pl
Co-authors:
KRAWCZYK Janusz
BAŁA Piotr
MADEJ Marcin
Abstract:
The wear resistance of the material and the wear mechanism are considered as the most important properties of tool materials. Changes in microstructures of tool materials may also results in the wear mechanism changes. [..]
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BALÁŽOVÁ Mariana Welding Research Institute – Industrial Institute SR, Bratislava, Slovak Republic
Co-authors:
BRZIAK Peter
BALCAR Martin
JUNKER Martin
DOMOVEC Martin
Abstract:
Subject of this article are the results of gradient tubes analysis (material of the shell: 347H, material of the body: 11CrMo9-10) based on Amec Foster Wheele specifications requirement. The aim of the analysis was the determination of mechanical and technological properties of gradient tubes in order to install the gradient tubes in a commercial boiler. [..]
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DZIURKA Rafał AGH University of Science and Technology, Faculty of Metals Engineering and Industrial Computer Science, Cracow, Poland, EU
Co-authors:
CIOS Grzegorz
WIECZERZAK Krzysztof
Abstract:
The hereby work presents the influence of an additional annealing prior to heat treatment on the final properties of investigated steel. Often companies despite softened conditions of ordered materials are performing further annealing. [..]
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MORAVEC Jaromír Technical University of Liberec, Liberec, Czech Republic, EU, jaromir.moravec@tul.cz, josef.bradac@tul.cz, iva.novakova@tul.cz
Co-authors:
BRADÁČ Josef
BERAN David
NOVÁKOVÁ Iva
Abstract:
The by-pass station of steam turbines is a device, used to by-pass the steam from boiler to condenser by bypassing the turbine. It is especially used while starting operating conditions of the boiler, before putting the turbine-generator unit in service, or in the cases when the amount of stem produced in boiler is higher, then the amount of steam needed for operation of turbine and its accessories. [..]
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ADAMASZEK Krzysztof BOSMAL Automotive Research & Development Institute, Bielsko-Biala, Poland, EU krzysztof.adamaszek@bosmal.com.pl, jan.nowak@bosmal.com.pl, zbigniew.jurasz@bosmal.com.pl
Co-authors:
NOWAK Jan
JURASZ Zbigniew
Abstract:
The corrosion behaviour of four grades of valves steels i.e.; X33CrNiMn23-8, X50CrMnNiNbN21-9, X33CrNiMnN23-8, X50CrMnNiNbN21-8, X53CrMnNiN20-8 and X55CrMnNiN20-8 in combustion gases of fuel oil with different quantities of FAME (Fatty Acid Methyl Esters) has been studied. In this work, the results of kinetic oxidation of above mentioned valve steels in combustion gases from diesel engine with 5, 10, 20% [v/v] of FAME are presented. [..]
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ANDRSOVA Zuzana Institute for Nanomaterials, Advanced Technologies and Innovations, Technical University of Liberec, Studentska 2, 461 17, Liberec 1, zuzana.andrsova1@tul.cz, +420 48 535 3128
Co-authors:
VOLESKY Lukas
SKRBEK Bretislav
SEJNOHOVA Ivana
Abstract:
This paper summarizes the most important results of research dealing with the use of the magnetic spot-pole method and measurement of ultrasonic wave velocity for process control of castings made from austempered ductile, grey and vermicular-graphite irons. It describes the most important dependencies between the measured physical quantities on the specific structure of these materials, especially the content of retained austenite. [..]
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BULÍN Tomáš Brno University of Technology, Faculty of Electrical Engineering and Communication, Technická 3058/10, 616 00 Brno, Czech Republic
Co-authors:
HAPLA Miroslav
ROUPCOVÁ Pavla
ONDRŮŠEK Čestmír
SCHNEEWEISS Oldřich
Abstract:
Steel, which was designated to process as high-grade and hardening of surface was investigated from the point of views of magnetic and transport properties. The aim of this study is to describe the magnetic behavior, electrical resistivity and thermal conductivity of this material in case that it is applied for the components of magnetic circuits or some parts in an electrical equipment. [..]
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BURIK Peter Technical University of Liberec, Faculty of Mechanical Engineering, Department of Material Science, Liberec, Czech Republic, EU, peter.burik@tul.cz
Co-authors:
PEŠEK Ladislav
Abstract:
The macroscopic mechanical properties of steel are highly dependent upon microstructure, crystallographic orientation of grains and distribution of each phase present etc. Nanomechanical testing using depth sensing indentation (DSI) provides a straightforward solution for quantitatively characterizing each of phases in microstructure because it is very powerful technique for characterization of materials in small volumes. [..]
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CIEŚLA Marek Silesian University of Technology, Faculty of Materials Science and Metallurgy, Katowice, Poland, EU, marek.ciesla@polsl.pl, grzegorz.junak@polsl.pl
Co-authors:
JUNAK Grzegorz
Abstract:
The paper presents the research on low-cycle fatigue of selected wrought light metal alloys, applied inter alia in the aviation technology. The material for the research consisted of hot-worked rods made of AZ31 magnesium alloy, dual-phase Ti-6Al-4V titanium alloy and 2017A (T451) aluminium alloy. [..]
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KAWULOKOVÁ Monika VŠB-TUO, Faculty of Metallurgy and Materials Engineering (FMME), 17. listopadu 15/2171, CZ 708 33, Ostrava - Poruba, Czech Republic, monika.kawulokova@vsb.cz
Co-authors:
ZLÁ Simona
DOBROVSKÁ Jana
SMETANA Bedřich
KALUP Aleš
STROUHALOVÁ Michaela
VONTOROVÁ Jiřina
VÁLEK Ladislav
ROSYPALOVÁ Silvie
FRANCOVÁ Hana
Abstract:
The paper deals with the study of phase transformations temperatures of real peritectic micro alloyed steel grade. Phase transformations temperatures were obtained using Differential Thermal Analysis (DTA) and Setaram Setsys 18TM laboratory system. [..]
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