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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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ĎURICA Juraj Slovak University of Technology, Faculty of Materials Science and Technology in Trnava, Jána Bottu 2781/25, 917 24 Trnava, Slovakia, EU, juraj.durica@stuba.sk
Co-authors:
JURČI Peter
KUSÝ Martin
PTAČINOVÁ Jana
SAHUL Martin
PAŠÁK Matej
Abstract:
The microstructure, the phase constitution and hardness of Cr-V ledeburitic tool steel Vanadis 6 subjected to sub-zero treatment with several soaking time in nitrogen vapors have been investigated. The metallurgical aspects include reducing the amount of retained austenite and increasing carbide count, so wear resistant and dimensional stability are better as compared to conventionally heat treated material. [..]
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LIPIŃSKI Tomasz University of Warmia and Mazury in Olsztyn, The Faculty of Technical Sciences, St: Oczapowskiego 11, 10-957 Olsztyn, Poland, tomaszlipinski.tl@gmail.com
Abstract:
Steel S235JR is one of the most popular structural material using on welding constructions. The microstructure of this steel consists of two phases: ferrite and perlite. [..]
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HOLEŠINSKÝ Jan ArcelorMittal Ostrava a.s., Ostrava, Czech Republic, EU, jan.holesinsky@arcelormittal.com
Co-authors:
VODÁREK Vlastimil
VOLODARSKAJA Anastasia
Abstract:
Dissimilar welds are widely used in tubular systems of power plant boilers to compensate for different operating conditions. Redistribution of interstitial elements across the fusion line is regarded to be the most dangerous degradation mechanism in heterogeneous welds. [..]
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SIMON Natanael University Politehnica of Timisoara, Faculty of Mechanical Engineering, Timisoara, Romania, EU
Co-authors:
MITELEA Ion
BURCĂ Mircea
UŢU Ion Dragoş
Abstract:
The CMT/CMTP braze-welding process is characterized by interruption of a short-arc at low welding current values, which is controlled by an invertor source. Thereby, the used energy is lowered by short time (about 1 μs) before reignition of the electric arc. [..]
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CHABOK Ali Department of Advanced Production Engineering, Engineering and Technology Institute Groningen, University of Groningen, Nijenborgh 4, 9747 AG, the Netherlands
Co-authors:
VAN DER AA Ellen
DE HOSSON Jeff
PEI Yutao
Abstract:
Two welding schemes of single and double pulse were used for the resistance spot welding of DP1000 dual phase steel. The changes in the mechanical performance and variant pairing of martensite under two different welding conditions were scrutinized. [..]
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STEPNOV Alexey Research and Production Enterprise “Center for Plasma Spraying” LLC, Vladimir, Russian Federation
Co-authors:
PAVLOV Artem
BELYAEV Igor
KIREEV Andrei
PRUSOV Evgeny
Abstract:
Nanoporous ceramic products from pure aluminum oxide were fabricated by plasma spraying method. The deposition process consists of passing of sprayed material particles with high velocity through plasma flow and subsequent coating of these particles on the surface of rotating metal forming mandrel. [..]
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DI GABRIELE Fosca Centrum Vyzkumu Rez, CVR, Husinec-Rez, Czech Republic
Co-authors:
LORINCIK Jan
HALODOVA Patricie
DUCHON Jan
HOJNA Anna
Abstract:
Compatibility of structural materials with a coolant, in conditions relevant to power plant operation, is a field of research of primary importance to nuclear safety. The current work describes the behaviour of T91 steels, under such conditions. [..]
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ERİŞİR Ersoy Kocaeli University, Faculty of Engineering, Kocaeli, Turkey, eerisir@kocaeli.edu.tr
Co-authors:
BİLİR Oğuz Gürkan
ARARAT Özge
Abstract:
Bearing steels are used for parts requiring high hardness and wear resistance. Conventional hardening of the bearing steel is carried out at 840-870 °C after reheating of the initial structure of ferrite and carbides. [..]
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SIMIONESCU Dinu „Politehnica“ University of Timisoara, Timisoara, Romania, EU
Co-authors:
MITELEA Ion
BURCĂ Mircea
Abstract:
Since thermomechanical treatments favors increased mechanical resistance characteristics of steels, their degree of alloying is lower than that of any found in normalized steel with the same strength.This is extremely beneficial for the weldability of steel.To prevent the emergence of unwanted micro-structural transformations in welded joint areas (softening HAZ, excessive growth of grain, cold cracking), the present paper aims to implement the narrow gap MAG welding of steel X65M intended for the fabrication of pipeline used for the transportation of natural gases and liquid hydrocarbons.Root and hot layers have been welded using MAG spray arc and the fill layers in pulsed current.The equipment used is composed by an internal welding machine for the root pass and external one with two welding torches for the fill layers, where the pipe is fix and the welding equipment make an downward vertical orbital movement around the pipe.Assessments of the quality of the welds are done through macro- and micrographic analyzes in conjunction with sclerometer examinations.
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GODBOLE Kirtiratan Department of Materials Science and Metallurgical Engineering Indian Institute of Technology Hyderabad, Telangana, Hyderabad, India, ms13p1003@iith.ac.in
Co-authors:
PANIGRAHI Bharat B.
DAS Chittaranjan
Abstract:
Martensitic stainless steels are broadly used in industrial applications where demands for higher strength, hardness and wear resistance are high. Tempering treatment plays a crucial role on performance of such steels. [..]
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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:
Electro-slag remelting is one of the ways to produce high-strength metal. For this reason, the machining of electro-slag metal is difficult. [..]
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OLARU Paul SETEC- SCO Expert, Luzern, Switzerland
Abstract:
One solution to overcoming these challenges is to optimize by tailoring microstructures of the copper plates used in the new tundish plate’s critical components. An approach that has proven effective in improving the thermal resistance of material to intergranular degradation is grain boundary junction in copper (GBJC) [1]. [..]
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ALTIERI Welder UPM – Mackenzie Presbyterian University, São Paulo, Brazil, BR
Co-authors:
FALDINI Sonia
VATAVUK Jan
Abstract:
Austenitic Stainless Steel is known as responsible for the largest manufacturing share of stainless steel. Different processes, as well as the addition of alloying elements affects the microstructure, which provides specific properties to each steel grade. [..]
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BAŃKOWSKI Damian Kielce University of Technology, Kielce, Poland, EU, dbankowski@tu.kielce.pl
Co-authors:
SPADŁO Sławomir
Abstract:
This article discusses experimental results obtained for elements made of a wear - and abrasion-resistant steel, Hardox400, finished using a non-conventional method. The analysis focused on the relationship between of the tumbling time and the radius of rounding. [..]
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BENA Traian „Politehnica“ University of Timisoara, Timisoara, Romania, EU
Co-authors:
MITELEA Ion
BORDEASU Ilare
UTU Ion Dragos
CRACIUNESCU Corneliu Marius
Abstract:
Samples made of nodular cast iron FGN 400-15 have been heat treated by oil quenching from 850 °C followed by tempering at 450 °C. The objective of the paper aimed the microstructure modification and improvement of the mechanical properties and wear resistance by cavitation. [..]
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BOZKURT Fatih University of Pardubice, Jan Perner Transport Faculty, Pardubice, Czech Republic
Co-authors:
SCHMIDOVÁ Eva
Abstract:
Fracture toughness (KIC) is the one of the most important parameters for evaluating the fracture resistance of the machine elements or structural parts subjected to cyclic loading. These cyclic stresses can cause damage or premature failure. [..]
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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:
ŠVÁBENSKÁ Eva
HAPLA Miroslav
ONDRŮŠEK Čestmír
SCHNEEWEISS Oldřich
Abstract:
Surface coating of electrical steel sheets is very important due to minimizing eddy current losses in electrical machines. The quality of coating can differ according to the composition. [..]
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VOLÁK Josef University of West Bohemia, Regional Technological Institute, Univerzitní 8, Pilsen 306 14 Czech Republic, EU, volak@rti.zcu.cz, bunda@rti.zcu.cz
Co-authors:
BUNDA Zbyněk
MENTL Václav
MACH Josef
ŠTĚPÁNEK Martin
Abstract:
The paper deals with the use of small samples for fatigue tests of two types of steels used for power plant components. The main advantage of small fatigue samples is the possibility of their use in cases, where sufficient amount of material is not available for standard test specimens manufacturing. [..]
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CONSTANTINESCU Dan University Politehnica of Bucharest, Faculty of Materials Science and Engineering, Romania, EU
Co-authors:
CÂRLAN Beatrice Adriana
SOHACIU Mirela
Abstract:
In archaeology, the Iron Age is the period when the iron usage and the technological processes of its obtaining were the most important for the society. The Iron Age is the last period from the system of the three ages of classifying the prehistoric societies, preceded by the Bronze Age. [..]
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DEPCZYŃSKI Wojciech Kielce University of Technology, Poland, EU, wdep@tu.kielce.pl
Abstract:
The compression strength is well characterized by the ability to transfer compressive stresses through porous materials. It can be determined by examining the material on the endurance machine in a single-axis compression test. [..]
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