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26 results on '"Matysiak, Hubert"'

1. Effect of Strain Range and Hold Time on High Temperature Fatigue Life of G17CRMOV5-10 Cast Alloy Steel

Author

Polnik Anna, Matysiak Hubert, Czarnewicz Sławomir, and Pakieła Zbigniew

Subjects
fatigue, lcf, hold time, strain, steam turbine, Transportation engineering, TA1001-1280
Abstract

In this work, cast steel G17CrMoV5-10 was investigated. The material subject to investigation as part of this study is commonly used to manufacture steam turbine casings. Modern steam turbines operate under elevated temperature and complex oscillated loads. Thus, the focus of this study was to investigate material under behavior during low cycle fatigue (LCF) test performance at 500°C with and without hold time in tension. During all types of test, cyclic softening of cast steel was noticed. Increasing of total strain rate and applying hold time significantly reduce fatigue life. During hold time, due to temperature and tension the material creep what is confirmed by increasing inelastic stain accommodation.

Published
2023
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9. The Influence of the Melt-Pouring Temperature and Inoculant Content on the Macro and Microstructure of the IN713C Ni-Based Superalloy

Author

Matysiak, Hubert, primary, Zagorska, Malgorzata, additional, Balkowiec, Alicja, additional, Adamczyk-Cieslak, Boguslawa, additional, Dobkowski, Krzysztof, additional, Koralnik, Mateusz, additional, Cygan, Rafal, additional, Nawrocki, Jacek, additional, Cwajna, Jan, additional, and Kurzydlowski, Krzysztof J., additional

Published
2015
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15. Microstructure of Haynes® 282® Superalloy after Vacuum Induction Melting and Investment Casting of Thin-Walled Components

Author

Matysiak, Hubert, Zagorska, Malgorzata, Andersson, Joel, Balkowiec, Alicja, Cygan, Rafal, Rasinski, Marcin, Pisarek, Marcin, Andrzejczuk, Mariusz, Kubiak, Krzysztof, Kurzydlowski, Krzysztof J., Matysiak, Hubert, Zagorska, Malgorzata, Andersson, Joel, Balkowiec, Alicja, Cygan, Rafal, Rasinski, Marcin, Pisarek, Marcin, Andrzejczuk, Mariusz, Kubiak, Krzysztof, and Kurzydlowski, Krzysztof J.

Abstract

The aim of this work was to characterize the microstructure of the as-cast Haynes® 282® alloy. Observations and analyses were carried out using techniques such as X-ray diffraction (XRD), light microscopy (LM), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray spectroscopy (EDS), wave length dispersive X-ray spectroscopy (WDS), auger electron spectroscopy (AES) and electron energy-loss spectrometry (EELS). The phases identified in the as-cast alloy include: γ (gamma matrix), γʹ (matrix strengthening phase), (TiMoCr)C (primary carbide), TiN (primary nitride), σ (sigma-TCP phase), (TiMo)2SC (carbosulphide) and a lamellar constituent consisting of molybdenum and chromium rich secondary carbide phase together with γ phase. Within the dendrites the γʹ appears mostly in the form of spherical, nanometric precipitates (74 nm), while coarser (113 nm) cubic γʹ precipitates are present in the interdendritic areas. Volume fraction content of the γʹ precipitates in the dendrites and interdendritic areas are 9.6% and 8.5%, respectively. Primary nitrides metallic nitrides (MN), are homogeneously dispersed in the as-cast microstructure, while primary carbides metallic carbides (MC), preferentially precipitate in interdendritic areas. Such preference is also observed in the case of globular σ phase. Lamellar constituents characterized as secondary carbides/γ phases were together with (TiMo)2SC phase always observed adjacent to σ phase precipitates. Crystallographic relations were established in-between the MC, σ, secondary carbides and γ/γʹ matrix.

Published
2013
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21. Solvothermal synthesis of nanocrystalline zinc oxide doped with Mn2+, Ni2+, Co2+ and Cr3+ ions

Author

Lojkowski, Witold, primary, Gedanken, Aharon, additional, Grzanka, Ewa, additional, Opalinska, Agnieszka, additional, Strachowski, Tomasz, additional, Pielaszek, Roman, additional, Tomaszewska-Grzeda, Anita, additional, Yatsunenko, Sergyi, additional, Godlewski, Marek, additional, Matysiak, Hubert, additional, and Kurzydłowski, Krzysztof J., additional

Published
2008
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22. Corrosion Resistance of Titanium Aluminide Layers on Two Phase (α+β) Ti6Al4V Titanium Alloy

Author

Sitek, R., Kaminski, Janusz, Pisarek, Marcin, Matysiak, Hubert, and Kurzydlowski, Krzysztof Jan

Abstract

The paper presents results of investigations into the structure and corrosion resistance of Ti-Al diffusion layers produced on two phase (a+b) Ti6Al4V alloy by Chemical Vapour Deposition (CVD). The process was carried out in aluminium chloride (AlCl3) mixed with argon atmosphere. Surface topography and microstructure characterization of the coatings were examined by scanning electron microscopy (SEM). The local chemical composition witch 1 μm lateral resolution was measured via EDS. The phase content was investigated by X-ray diffraction and analysis of the chemical composition of the surface by XPS. Corrosion resistance was tested using the potentiodynamic method in 0.1M Na2SO4 and 0.1M H2SO4 solutions at the room temperature. Their resistance to high temperature at atmospheric pressure was tested by 24-hours cycling to 700°C. The results indicate that the layers produced on the Ti6Al4V titanium alloy exhibit a very good adhesion combined with exceptional corrosion resistance, especially high at high temperatures.

Published
2010
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23. Organic Viscosity Modifiers for Controlling Rheology of Ceramic Slurries Used in the Investment Casting

Author

Ferenc-Dominik, Julia, Matysiak, Hubert, and Kurzydlowski, Krzysztof Jan

Abstract

The paper presents results of the study on the rheology modifiers of ceramic slurries used in the investment casting. The ceramic slurries used in the study were based on aluminum oxide powder in silica sol binder. Following modifiers were used as thickening agents: mpj, locust bean and xanthan gums. The influence of the substances on the slurry viscosity were tested with a silica sol binder before application to the ceramic slurries. The viscosity measurements were carried out with the use of ARES and Brookfield rheometres. The results obtained demonstrate the potential of employing the investigated substances as rheology modifiers for ceramic slurries used in the investment casting.

Published
2006
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24. Corrosion Resistance of Titanium Aluminide Layers on Two Phase (α+β) Ti6Al4V Titanium Alloy

Author

Sitek, R., Kaminski, Janusz, Pisarek, Marcin, Matysiak, Hubert, and Kurzydlowski, Krzysztof Jan

Abstract

The paper presents results of investigations into the structure and corrosion resistance of Ti-Al diffusion layers produced on two phase (a+b) Ti6Al4V alloy by Chemical Vapour Deposition (CVD). The process was carried out in aluminium chloride (AlCl3) mixed with argon atmosphere. Surface topography and microstructure characterization of the coatings were examined by scanning electron microscopy (SEM). The local chemical composition witch 1 μm lateral resolution was measured via EDS. The phase content was investigated by X-ray diffraction and analysis of the chemical composition of the surface by XPS. Corrosion resistance was tested using the potentiodynamic method in 0.1M Na2SO4 and 0.1M H2SO4 solutions at the room temperature. Their resistance to high temperature at atmospheric pressure was tested by 24-hours cycling to 700°C. The results indicate that the layers produced on the Ti6Al4V titanium alloy exhibit a very good adhesion combined with exceptional corrosion resistance, especially high at high temperatures.

Published
2006
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26. Microstructure of Haynes ® 282 ® Superalloy after Vacuum Induction Melting and Investment Casting of Thin-Walled Components.

Author

Matysiak H, Zagorska M, Andersson J, Balkowiec A, Cygan R, Rasinski M, Pisarek M, Andrzejczuk M, Kubiak K, and Kurzydlowski KJ

Abstract

The aim of this work was to characterize the microstructure of the as-cast Haynes ® 282 ® alloy. Observations and analyses were carried out using techniques such as X-ray diffraction (XRD), light microscopy (LM), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray spectroscopy (EDS), wave length dispersive X-ray spectroscopy (WDS), auger electron spectroscopy (AES) and electron energy-loss spectrometry (EELS). The phases identified in the as-cast alloy include: γ (gamma matrix), γ' (matrix strengthening phase), (TiMoCr)C (primary carbide), TiN (primary nitride), σ (sigma-TCP phase), (TiMo)₂SC (carbosulphide) and a lamellar constituent consisting of molybdenum and chromium rich secondary carbide phase together with γ phase. Within the dendrites the γ' appears mostly in the form of spherical, nanometric precipitates (74 nm), while coarser (113 nm) cubic γ' precipitates are present in the interdendritic areas. Volume fraction content of the γ' precipitates in the dendrites and interdendritic areas are 9.6% and 8.5%, respectively. Primary nitrides metallic nitrides (MN), are homogeneously dispersed in the as-cast microstructure, while primary carbides metallic carbides (MC), preferentially precipitate in interdendritic areas. Such preference is also observed in the case of globular σ phase. Lamellar constituents characterized as secondary carbides/γ phases were together with (TiMo)₂SC phase always observed adjacent to σ phase precipitates. Crystallographic relations were established in-between the MC, σ, secondary carbides and γ/γ' matrix.

Published
2013
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