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Conference Proceedings - METAL 2019
28th International Conference on Metallurgy and Materials
May 22nd - 24th 2019 / Hotel Voronez I, Brno, Czech Republic, EU
www.metalconference.eu
ISSN: 2694-9296
ISBN: 978-80-87294-92-5
Proceedings of the conference were published in Web of Science and Scopus.
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SHURKIN Pavel National University of Science and Technology «MISiS», Moscow, Russian Federation, p.shurkin@misis.ru
Co-authors:
AKOPYAN Torgom
MUSIN Askar
DOI: https://doi.org/10.37904/metal.2019.742, 1210-1215
Abstract:
Three kinds of aluminum alloys based on Al-Zn-Mg system and doped with Ca, Ni and Ce were studied. Determination of hot tearing tendency, phase composition and structure formation investigation were conducted. [..]
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PIĄTKOWSKI Jarosław Silesian University of Technology, Faculty of Materials Engineering and Metallurgy, Katowice, Silesia, Poland, EU, jaroslaw.piatkowski@polsl.pl, pawel.gradon@polsl.pl, martyna.lachowska@polsl.pl
Co-authors:
GRADOŃ Paweł
LACHOWSKA Martyna
DOI: https://doi.org/10.37904/metal.2019.744, 1216-1221
Abstract:
Alloys with increased configurational entropy are new group of materials with very broad range of possible properties, but their application potential is currently limited because of complicated and inefficient manufacturing processes used mainly on laboratory scale. Paper presents the results of preliminary research aimed on manufacturing castings made of medium entropy alloys (MEA) by industry scale casting technologies. [..]
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SUSLU Yekta Berk Istanbul Technical University, Faculty of Chemical and Metallurgical Engineering, Istanbul, Turkey, ozgulkeles@itu.edu.tr
Co-authors:
ACAR Mehmet Sirac
MUTLU Muammer
KELES Ozgul
DOI: https://doi.org/10.37904/metal.2019.753, 1222-1229
Abstract:
Gas porosity is one of the most common casting defect in die cast parts and it has an undeniable effect on strength, leakage and heat treatability. Reducing and even preventing porosity level can be achieved by the integrative design of mold, vacuum system and optimized process parameters. [..]
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WIESZAŁA Robert Silesian University of Technology, Faculty of Transport, Gliwice, Poland, EU, Robert.wieszala@polsl.pl
Co-authors:
PIĄTKOWSKI Jarosław
KOZUBA Jarosław
DOI: https://doi.org/10.37904/metal.2019.769, 1230-1240
Abstract:
The paper determines the influence of presence of various manganese content (0.2; 0.4 and 0.6 wt%) on the course of the crystallisation process, mechanical properties and structure of alloy AlSi10Mg. Recycled secondary materials with elevated content of iron were used to prepare the cast of this silumin. [..]
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NOGA Piotr AGH – University of Science and Technology, Faculty of Non-Ferrous Metals, Cracow, Poland, EU, pionoga@agh.edu.pl
Co-authors:
ZWOLINSKI Adam
DOI: https://doi.org/10.37904/metal.2019.768, 1241-1246
Abstract:
Imposing large plastic deformation by SPD processes such as ECAP, HPT, ARB etc. in a relatively simple way enables to obtain material with high grain refinement. [..]
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LUCIAN Ciprian Pavel Politehnica University of Timisoara, Timisoara, Romania, EU, ciprian.lucian@student.upt.ro
Co-authors:
MITELEA Ion
UŢU Ion Dragoş
Crăciunescu Corneliu Marius
DOI: https://doi.org/10.37904/metal.2019.741, 1247-1252
Abstract:
The issues which appears at fusion welding of 6082 T6 aluminum alloy are connected with hot cracking (solidification and liquation crackings), porosity and over aging of a portion from heat-affected zone (HAZ). Relatively high thermal expansion and the wide range solidification temperature of the Al alloy are the main causes of susceptibility to welding cracking. [..]
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KOCICH Radim VSB - Technical University of Ostrava, Ostrava, Czech Republic, EU, radim.kocich@vsb.cz
Co-authors:
KUNČICKÁ Lenka
DOI: https://doi.org/10.37904/metal.2019.740, 1253-1259
Abstract:
Copper and aluminum are both widely applicable in a variety of industrial and commercial branches, from automotive to electrotechnics and laminated materials and clad composites are innovative and perspective solutions for various applications. This study deals with the investigation of structure development via internal stress analyses, grains size observation, and residual stress analyses within Al-Cu clad composites rotary swaged at room temperature and at 250 °C by optical and electron microscopy, EBSD analyses and microhardness measurements. [..]
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WĄSIK Anna AGH University of Science and Technology, Faculty of Non Ferrous Metals, Cracow, Poland, EU, anna.wasik@agh.edu.pl
Co-authors:
LESZCZYŃSKA-MADEJ Beata
MADEJ Marcin
DOI: https://doi.org/10.37904/metal.2019.767, 1260-1266
Abstract:
In the present work Al4Cu-SiC composites were fabricated in a rigid die on a single-action compaction press and then sintered under the nitrogen atmosphere. The SiC (< 2 µm) content was 5 and 10 wt%. [..]
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BAZHENOV Viacheslav National University of Science and Technology, Foundry Department, Moscow, Russian Federation, v.e.bagenov@gmail.com
Co-authors:
LI Anna
KOLTYGIN Andrey
KOMISSAROV Alexander
TAVOLZHANSKII Stanislav
TEN Denis
GAMIN Yury
KOMISSAROVA Julia
DOI: https://doi.org/10.37904/metal.2019.757, 1267-1272
Abstract:
Biodegradable implants are effective because of no revision surgery is needed for further implant removing. It was known that the Mg-Zn-Ca-(Mn) alloys are promising for biodegradable applications because of high biocompatibility and enough mechanical properties. [..]
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ZEMKOVÁ Mária Charles University, Faculty of Mathematics and Physics Department of Physics of Materials, Ke Karlovu 5, 12116 Prague, Czech Republic, EU, maria.zemkova@mff.cuni.cz
Co-authors:
LUKÁČ František
CINERT Jakub
BOHLEN Jan
MINÁRIK Peter
KRÁL Robert
DOI: https://doi.org/10.37904/metal.2019.743, 1273-1278
Abstract:
Magnesium alloy Mg-4Y-3Nd was prepared by spark plasma sintering technique. The gas-atomized powder was sintered at temperatures in the range of 400-500 °C and holding time up to 10 minutes. [..]
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MINÁRIK Peter Charles University, Department of Physics of Materials, Prague, Czech Republic, EU, peter.minarik@mff.cuni.cz
Co-authors:
Kozlík Jiří
Zemková Mária
Král Robert
DOI: https://doi.org/10.37904/metal.2019.763, 1279-1283
Abstract:
The gas-atomized powder prepared from AE42 magnesium alloy was mechanically milled at various conditions. The effect of milling on the size, morphology and particle microstructure was investigated. [..]
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KUNČICKÁ Lenka Institute of Physics of Materials, Academy of Science of Czech Republic, Brno, 61662, Czech Republic, kuncicka@ipm.cz
Co-authors:
KRÁL Petr
DVOŘÁK Jiří
KOCICH Radim
DOI: https://doi.org/10.37904/metal.2019.766, 1284-1290
Abstract:
The report presents results of the analyses of biocompatible WE 43 Mg-based alloy processed by friction stir processing (FSP) at two different rotational speeds of 400 rpm, and 1200 rpm. The structures were observed by scanning electron microscopy (SEM), electron backscattered diffraction (EBSD). [..]
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ŠAŠEK Stanislav Charles University, Department of Physics of Materials, Czech Republic, Prague, EU, sasekstanislav@seznam.cz
Co-authors:
STRÁSKÁ Jitka
MINÁRIK Peter
BOHLEN Jan
KUBÁSEK Jiří
DOI: https://doi.org/10.37904/metal.2019.765, 1291-1296
Abstract:
Two experimental magnesium alloys containing neodymium and zinc (Mg-5Nd-1Zn and Mg-1Nd-1Zn) were processed by severe plastic deformation (SPD) method - equal channel angular pressing (ECAP). The effect of SPD processing on the microstructure was studied by light microscopy (LM) and scanning electron microscopy (SEM) including electron backscatter diffraction (EBSD). [..]
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VÁVRA Tomáš Charles University, Department of Physics of Materials, Prague, Czech Republic, EU, tomvavra1@gmail.com
Co-authors:
KRÁL Robert
KUBÁSEK Jiří
ZEMKOVÁ Mária
MINÁRIK Peter
DOI: https://doi.org/10.37904/metal.2019.760, 1297-1301
Abstract:
Superplastic behavior of ultrafine-grained (UFG) magnesium alloy Mg-4Y-3RE (wt%) prepared by equal channel angular pressing (ECAP) was investigated at high strain rates. Eight passes through ECAP resulted in grain refinement down to ~340 nm and formation of a high volume fraction of fine secondary phase particles located at the grain boundaries and triple-points. [..]
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DITTRICH Jana Department of Physics of Materials, Charles University, Prague, Czech Republic, EU, dittrich.jan@gmail.com, jan.capek@gmail.com, knapek@karlov.mff.cuni.cz, peter.minarik@mff.cuni.cz
Co-authors:
ČAPEK Jan
KNAPEK Michal
MINÁRIK Peter
DOI: https://doi.org/10.37904/metal.2019.755, 1302-1307
Abstract:
Advanced in-situ and ex-situ methods were used to reveal active deformation mechanisms during deformation of magnesium alloy with a strong texture. Three sets of samples were prepared from the rolled sheet of commercial AZ31 alloy with respect to its strong basal texture – normal direction (ND), rolling direction (RD) and 45° between RD and ND, and were deformed in both compression and tension. [..]
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LAPIN Juraj Institute of Materials and Machine Mechanics, Slovak Academy of Sciences, Bratislava, Slovakia, EU, juraj.lapin@savba.sk
DOI: https://doi.org/10.37904/metal.2019.747, 1308-1313
Abstract:
In-situ TiAl-based matrix composites reinforced with ceramic particles can improve the deficiency of lightweight TiAl-based alloys at high temperatures and facilitate their industrial applications using well-known and widely applied processing technologies. Carbide particles show a significant role in toughening and reinforcing of TiAl-based matrix composites. [..]
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ŠTAMBORSKÁ Michaela Institute of Materials & Machine Mechanics, Slovak Academy of Sciences, Bratislava, Slovakia, EU, michaela.stamborska@savba.sk, juraj.lapin@savba.sk, oto.bajana@savba.sk
Co-authors:
LAPIN Juraj
BAJANA Oto
DOI: https://doi.org/10.37904/metal.2019.746, 1314-1319
Abstract:
Analytical and numerical analyses of room temperature compressive deformation behavior of cast in-situ composites with the chemical compositions Ti-44.6Al-7.9Nb-3.6C-0.7Mo and Ti-44.9Al-7.5Nb-4.9C-0.6Mo-0.1B (at%) were performed. The microstructural evaluation was carried out by scanning electron microscopy (SEM) and SEM in back scattered electron (BSE) mode. [..]
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LAPIN Juraj Institute of Materials and Machine Mechanics, Slovak Academy of Sciences, Bratislava, Slovakia, EU, juraj.lapin@savba.sk, kateryna.kamyshnykova@savba.sk
Co-authors:
KAMYSHNYKOVA Kateryna
DOI: https://doi.org/10.37904/metal.2019.748, 1320-1326
Abstract:
Samples of in-situ TiAl-based matrix composite reinforced with Ti2AlC particles were prepared by vacuum induction melting of a charge with a nominal composition Ti-47Al-5Nb-1C-0.2B (at%) in graphite crucibles and centrifugal casting into a graphite mould. The as-cast samples were subjected to hot isostatic pressing (HIP) and multi-step heat treatments. [..]
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KLIMOVÁ Alena Institute of Materials and Machine Mechanics, Slovak Academy of Sciences, Dúbravská cesta 9/6319, 845 13 Bratislava 3, Slovak Republic, EU, *alena.klimova@savba.sk
Co-authors:
LAPIN Juraj
DOI: https://doi.org/10.37904/metal.2019.749, 1327-1332
Abstract:
The effect of Al content on morphology, chemical composition, nanohardness and elastic modulus of primary (Ti,Nb)2AlC particles was investigated in in-situ composites with nominal composition Ti-xAl-8Nb-1Mo-0.1B-3.7C (at%), where x ranged from 38 to 45 at%. The in-situ composites were prepared by vacuum induction melting in the graphite crucibles and consecutive tilt casting into a graphite mould. [..]
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PELACHOVÁ Tatiana Institute of Materials and Machine Mechanics, Slovak Academy of Sciences, Dúbravská cesta 9, 845 13 Bratislava, Slovak Republic, EU, tatiana.pelachova@savba.sk
Co-authors:
LAPIN Juraj
DOI: https://doi.org/10.37904/metal.2019.751, 1333-1338
Abstract:
The fracture initiation and propagation was studied in a novel in-situ Ti-44.5Al-8Nb-4.8C-0.8Mo-0.1B (at%) composite reinforced with carbide particles. The composite was prepared by vacuum induction melting in graphite crucibles and precise casting into graphite mould. [..]
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