Archives of Metallurgy and Materials

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Influence of the Quenching Rate on the Structure and Magnetic Properties of the Fe-Based Amorphous Alloy
Archives of Metallurgy and Materials - Tập 61 Số 1 - Trang 439-444 - 2016
M. Nabiałek
This paper presents the results of investigations into the structure, microstructure and magnetic properties of Fe61Co10Y8W1B20 amorphous alloy. The alloy samples were in two physical forms: (1) plates of approximate thickness 0.5 mm (so-called bulk amorphous alloys) and (2) a ribbon of approximate thickness 35 μm (so-called classic amorphous alloy). The investigations comprised: X-ray diffractome... hiện toàn bộ
Ab Initio Study of Structure, Electronic and Magnetic Properties of YFe5 Phase Compound in the DFT Formalism
Archives of Metallurgy and Materials - Tập 61 Số 1 - Trang 369-374 - 2016
K. Gruszka, M. Nabiałek, T. Noga
Paper presents results of studies on structural, electronic and magnetic properties of YFe5 compound using density functional theory (DFT) approach. The GGA functional with ultrasoft pseudopotentials were used as implemented in Quantum Espresso software. The structure of YFe5 compound was examined in three different states namely nonmagnetic, antiferromagnetic and ferromagnetic. Also two antiferro... hiện toàn bộ
Manufacturing of Porous Al-Cr Preforms for Composite Reinforcing Using Microwave Activated Combustion Synthesis
Archives of Metallurgy and Materials - Tập 59 Số 3 - Trang 1125-1127 - 2014
K. Naplocha, K. Granat
Abstract The combustion synthesis of porous skeletons (preforms) of intermetallic Al–Cr compounds intended for metal matrix composite MMC reinforcing was developed. Mixture of Al and Cr powders with granularity of −10, −44, −74mm were cold isostatic pressed and next ignited and synthetized in a microwave reactor under argon atmosphere (microwave-activated combustion synthesis MACS). In order to ig... hiện toàn bộ
The Influence of Mo Content on Phase Transformation in Ti-Mo Alloys
Archives of Metallurgy and Materials - Tập 62 Số 4 - Trang 2051-2056 - 2017
P. Sochacka, Andrzej Miklaszewski, M. Jurczyk
AbstractTitaniumβ-type alloys are a class of interesting biomaterials that can exhibit a unique combination of mechanical as well as physicochemical and biological properties. The aim of this study is to develop a titanium-molybdenum alloys (Ti-x at % Mo,x= 15 and 23). These materials were prepared by the combination of mechanical alloying and powder metallurgical process. The details of the proce... hiện toàn bộ
Quasi-Static and Dynamic Tensile Properties of Ti-6Al-4V Alloy
Archives of Metallurgy and Materials - Tập 58 Số 4 - Trang 1261-1265 - 2013
M. Wojtaszek, Tomasz Śleboda, A. Czulak, G. Weber, W. Hufenbach
Abstract Ti-6Al-4V alloy is widely used, mainly in aircraft industry, due to its low density, excellent corrosion/oxidation resistance and attractive mechanical properties. This alloy has relatively low formability, so forming parts of complex geometries out of this alloy requires precisely controlled thermomechanical processing parameters. In industrial conditions Ti-6Al-4V alloy is usually proce... hiện toàn bộ
Recent Developments on Discontinuous Precipitation
Archives of Metallurgy and Materials - Tập 62 Số 2 - Trang 955-968 - 2017
P. Ziȩba
AbstractThe discontinuous precipitation (DP) belongs to a group of diffusive solid state phase transformations during which the formation of a new phase is heterogeneous and limited to a migrating reaction front (RF). The use of analytical electron microscopy provided reliable information that there is no differences in the diffusion rate at the stationary grain boundary and moving RF of DP reacti... hiện toàn bộ
Microgravimetric Studies of Selenium Electrodeposition Onto Different Substrates
Archives of Metallurgy and Materials - Tập 59 Số 3 - Trang 871-877 - 2014
Remigiusz Kowalik
Abstract The mechanism of selenium electrodeposition from sulfuric acid solution on different substrates was studied with the electrochemical techniques. The cyclic voltammetry was combined with the quartz crystal microbalance technique to analyze selenium deposition process. The electrochemical reduction of selenous acid on gold, silver and copper electrodes was investigated. It was found that re... hiện toàn bộ
CARBIDES ANALYSIS OF THE HIGH STRENGTH AND LOW DENSITY Fe-Mn-Al-Si STEELS
Archives of Metallurgy and Materials -
Wojciech Borek, Liwia Sozańska-Jędrasik, J. Mazurkiewicz, Krzysztof Matus
The Characterization Of Cast Fe-Cr-C Alloy
Archives of Metallurgy and Materials - Tập 60 Số 2 - Trang 779-782 - 2015
K. Wieczerzak, Piotr Bała, Michał Stępień, Grzegorz Cios, Tomasz Kozieł
AbstractThe paper presents the results of the characterization of alloy from Fe-Cr-C (carbon content 0.79 wt.%) system including the microstructure, phase analysis, morphology and hardness in as cast state. The chemical composition was designed to create chromium-rich ferritic matrix with high volume fraction of carbides in form of interdendritic eutectics. The research was carried out on the cros... hiện toàn bộ
Effect of Welding Thermal Cycles on Microstructure and Mechanical Properties of Simulated Heat Affected Zone for a Weldox 1300 Ultra-High Strength Alloy Steel
Archives of Metallurgy and Materials - Tập 61 Số 1 - Trang 127-132 - 2016
M. S. Węglowski, M. Zeman, A. Grocholewski
In the present study, the investigation of weldability of ultra-high strength steel has been presented. The thermal simulated samples were used to investigate the effect of welding cooling time t8/5 on microstructure and mechanical properties of heat affected zone (HAZ) for a Weldox 1300 ultra-high strength steel. In the frame of these investigation the microstructure was studied by light and tran... hiện toàn bộ
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