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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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MOHYLA Petr VSB - Technical University of Ostrava, Ostrava, Czech Republic, EU petr.mohyla@vsb.cz
Co-authors:
SCHINDLEROVÁ Vladimíra
VONTOROVÁ Jiřina
TRAWINSKÁ Zuzana
Abstract:
This work deals with properties and microstructure of heat resistant chromium steel P92. This steel is considered to be one of the best modified 9-12 % Cr steel for the construction of coal power plants with ultra-super-critical steam parameters. [..]
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PARILÁK Ľudovít ŽP Research and Development Centre, Ltd., Kolkáreň 35, 976 81 Podbrezová, Slovak Republic, bekec@zelpo.sk
Co-authors:
BEKEČ Pavel
BERAXA Pavol
FUJDA Martin
Abstract:
The paper deals with influence of four temperatures of high temperature austenitization and two dwells on temperature on microstructure and substructure of heat-resistant 9CrNB steel. The microstructure consists of lathe martensite and bainite. [..]
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HORVÁTH Jakub CTU – Czech Technical University in Prague, Department of Materials Engineering, Prague, Czech Republic, EU, Jakub.Horvath@fs.cvut.cz, Michal.Junek@fs.cvut.cz, Marie.Rohlova@fs.cvut.cz, Jiri.Janovec@fs.cvut.cz
Co-authors:
JUNEK Michal
ROHLOVÁ Marie
JANOVEC Jiří
Abstract:
This paper documents the microstructure changes of steel SUPER 304H caused by high temperature overheating (1140 °C, 15 hours). The experimental material was firstly isothermally laboratory exposed about 30,000 hours at temperature 650 °C and then subject to high temperature overheating. [..]
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Chocholousek Michal CVR – Centrum vyzkumu Rez s.r.o., Husinec-Rez, Czech Republic, EU, michal.chocholousek@cvrez.cz
Co-authors:
Spirit Zbynek
Di Gabriele Fosca
Abstract:
Crack initiation of the ferritic martensitic steel T91 and austenitic steel 316L is currently under study. This is due to the evaluation ongoing in the EC for materials compatibility in Heavy Liquid Metals (HLM) environment, and, in particular, the issue of Liquid Metal Embrittlement.Slow Strain Rate Tensile (SSRT) tests were performed with flat specimens in PbBi at 300°C with oxygen content in the range of about 10-6 wt.% down to 10-12 wt.% and, for comparison in air, up to the point of maximal stress (without or with minimum necking). [..]
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KUČERA Pavel VÍTKOVICE CYLINDERS, a.s., Ostrava, Czech Republic, EU, pavel.kucera@cylinders.cz
Co-authors:
MAZANCOVÁ Eva
ŠOFER Michal
Abstract:
Steel 34CrMo4 is commonly used for a variety of high strength application in many industrial areas. Some of such applications are exposed to environment containing H2S and high humidity that can cause the SSC issue. [..]
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RUDOMILOVA Darya University of Chemistry and Technology Prague, Prague, Czech Republic, EU, darya.rudomilova@vscht.cz
Co-authors:
PROŠEK Tomáš
SCHIMO-AICHHORN Gabriela
MUHR Andreas
DUCHACZEK Hubert
LUCKENEDER Gerald
Abstract:
Growing efforts for weight and gas emission reduction in automotive industry led to development of advanced high strength steels (AHSS) with a very good strength-to-ductility balance. However, AHSS can be prone to hydrogen embrittlement, which leads to the degradation of mechanical properties, mainly ductility, in the presence of hydrogen. [..]
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FROCISZ Łukasz AGH University of Science and Technology, Faculty of Metals Engineering and Industrial Computer Science, A. Mickiewicza Av. 30, 30 – 059 Kraków, Poland, lfrocisz@agh.edu.pl
Co-authors:
KRAWCZYK Janusz
ŚLEBODA Tomasz
Abstract:
Nitrriding is a one of the processes which is used to increase material surface hardness. Nitrogen supersaturated layer on the material surface significantly decreases its friction coefficient. [..]
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SEVİNÇ Büşra Ankara Yıldırım Beyazıt University, Faculty of Natural Sciences, Department of Mechanical Engineering, Ankara, Turkey, acicek@ybu.edu.tr
Co-authors:
YAVUZ Ahmet
YILMAZ Muhammet Mustafa
ÇETİN Barış
UÇAK Necati
ÇİÇEK Adem
Abstract:
Manufacturing of the tensile test specimens with minimal surface defects and close tolerances are the key factors to achieve desirable and accurate mechanical properties. In addition, faster and cost-effective manufacturing methods with reliable results are also critical requirements. [..]
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ZIMINA Mariia Research Centre Rez, Husinec-Rez, Czech Republic, EU, mariia.zimina@cvrez.cz
Co-authors:
ŠVRČULA Petr
ZHÁŇAL Pavel
SRBA Ondřej
Abstract:
Development and maintenance of materials for nuclear power plants and aerospace usage is an important area of the materials science. It includes the study of various aspects of materials damage as well as an improvement and development of new observation and testing techniques. [..]
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DLOUHY Jaromir COMTES FHT a.s., Prumyslova 995, 334 41, Dobrany, Czech Republic, EU, jaromir.dlouhy@comtesfht.cz
Co-authors:
PODANY Pavel
NOVY Zbysek
Abstract:
This article is devoted to the influence of copper on the bainitic transformation. Copper addition hinders proeutectoid ferrite formation and thus is favourable for bainitization. [..]
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TESAŘ Jiří University of West Bohemia, New Technologies - Research Centre, Plzeň, Czech Republic, tesar@ntc.zcu.cz
Co-authors:
ŠVANTNER Michal
SKÁLA Jiří
NOVÁK Matyáš
Abstract:
Testing of material fatigue properties belongs to important material examinations. A standard fatigue measurement is mostly a time-consuming and expensive experiment, among others due to a number of samples needed. [..]
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KONOPÍK Pavel COMTES FHT a.s., Průmyslová 955, 334 41 Dobřany, Czech Republic, pavel.konopik@comtesfht.cz
Co-authors:
DŽUGAN Jan
RUND Martin
PROCHÁZKA Radek
Abstract:
Many parts for automobiles and home electric appliances are made of steel sheets. In sheet metal forming processes, the knowledge of technological values, such as yield or tensile strength and r-value, enables a more precise control of processes and results in many benefits such as an improvement in yield efficiency in machining processes and a decrease in loss of material. [..]
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KARBOWNICZEK Miroslaw AGH - University of Science and Technology, Krakow, Poland, EU, mkarbow@agh.edu.pl
Co-authors:
MIGAS Piotr
MONDAL Manas Kumar
BANASIK Lukasz
SUWARA Estera
GUPTA Govind Sharan
Abstract:
Possibility of FeSiCr alloys production, with low content of carbon, in industrial conditions depends upon various factors like temperature of the solution, refining time, chemical compositions and others. In order to identify the evolution and behavior of solid inclusions in the solution, laboratory tests for alloys at high temperatures of 1400-1500 °C have been carried out. [..]
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BABINSKÝ Tomáš Brno University of Technology, Faculty of Mechanical Engineering, Brno, Czech Republic, T.Babinsky@seznam.cz
Co-authors:
DLUHOŠ Jiří
CANDEIAS Antoine
PETRENEC Martin
Abstract:
An effect of static recrystallization with inclusion interaction and a change of tensile mechanical properties of drawn free-cutting steel has been studied in the scanning electron microscope (SEM) equipped with a combined in-situ heating and tensile stage. The main goal of all in-situ tests was to effectively improve plasticity and optimize strength which is important for application of the final products from free-cutting steels. [..]
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BOZKURT Fatih Department of Mechanic, Materials and Machine Parts, Faculty of Transport Engineering, University of Pardubice, Pardubice, Czech Republic, fatih.bozkurt@student.upce.cz, premysl.hojka@upce.cz
Co-authors:
YURDAKUL Özgür
HOJKA Premysl
ROUTIL Ladislav
BALABAN Eren
ARTAGAN Salih Serkan
Abstract:
Non-seismically designed existing reinforced concrete (RC) structures are susceptible to any thermal effect. Indeed, difficulties arise even more in understanding the performance of buildings in fire due to the inherent complexity in the behavior of composite materials at elevated temperatures. [..]
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BOZKURT Fatih Department of Mechanic, Materials and Machine Parts, Faculty of Transport Engineering, University of Pardubice, Pardubice, Czech Republic, fatih.bozkurt@student.upce.cz
Co-authors:
SCHMIDOVÁ Eva
Abstract:
In this study the effect of notch angle on fracture toughness (KIC) of AISI 4340 steel is investigated by using circumferentially notched bar method. The specimens have three different notch angles 45°, 60°, 75° and specimen diameters (D) – notch diameters (d) ratio (D / d) keep constant as 1.2. [..]
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Bublíková Dagmar University of West Bohemia, RTI – Regional Technological Institute, Univerzitní 22, 06 14 Pilsen, Czech Republic, EU, natasha@rti.zcu.cza, hstankov@rti.zcu.czb, jeniceks@rti.zcu.czc, jandat@rti.zcu.czd
Co-authors:
Jirková Hana
Jeníček Štěpán
Janda Tomáš
Abstract:
The forging industry seeks ways to improve mechanical properties of forged parts without using costly alloyed steels or complicated and time-consuming post-forge heat treatment. One of the available options is Q&P processing (Quenching and Partitioning) of advanced high-strength martensitic steels. [..]
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BUCKI Tomasz Kielce University of Technology, Kielce, Poland, EU, e-mail: tbucki@tu.kielce.pl
Co-authors:
RZEPA Sylwia
MELZER Daniel
KONOPÍK Pavel
DŽUGAN Jan
RUND Martin
Abstract:
The effect of the strain rate on master curve of the martensitic chromium steel was examined. The tests were performed in both quasi-static and dynamic conditions. [..]
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VOLÁK Josef RTI – University of West Bohemia, Pilsen, Czech Republic, EU, volak@rti.zcu.cz
Co-authors:
BUNDA Zbyněk
VARNER Miroslav
KOULA Václav
MACH Josef
ŠTĚPÁNEK Martin
MENTL Václav
Abstract:
Description of the procedure and results are given for computer simulations of small punch test (SPT) performed on P92 structural steel. The maximum force calculated using the SPT simulation is about 5% higher than the measured value. [..]
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PARILÁK Ľudovít ŽP Research and Development Centre, Kolkáreň 35, 976 81 Podbrezová, Slovak Republic, EU, aparilak@zelpo.sk, b*burik@zelpo.sk, cbella@zelpo.sk, dmojzis.milan@zelpo.sk
Co-authors:
BURIK Peter
BELLA Peter
MOJŽIŠ Milan
KEJZLAR Pavel
Abstract:
Cold drawing of steel tubes is the manufacturing process characterized by anisotropic material flow during drawing. In this paper, the microstructural of the E235 hot rolled steel tube after normalizing and cold drawing were characterized by optical microscopy, EBSD (Electron BackScatter Diffraction) analysis performed on scanning electron microscope. [..]
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