Tomasz Polczyk

Tomasz Polczyk

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9
Publications
639
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16
Citations
Citations since 2016
9 Research Items
16 Citations
2016201720182019202020212022024681012
2016201720182019202020212022024681012
2016201720182019202020212022024681012
2016201720182019202020212022024681012

Publications

Publications (9)
Article
Oxidation resistance of γ - TiAl alloy RNT650 exposed to air and steam at 650 °C for 1000 h is reported. The samples were prepared either by conventional casting (CM) or electron beam melting (EBM). The materials were analysed using XPS, XRD, SEM and STEM/EDS techniques. Mass gains in both alloys were comparable and relatively small for air oxidati...
Article
Ti(C0.5,N0.5)-reinforced alumina matrix composites with an addition of 2 wt% ZrO2 were tested to determine residual stresses of Al2O3 and Ti(C0.5,N0.5) phases. The advanced sintering technique (spark plasma sintering ―SPS) at various temperatures of 1600ºC and 1700ºC was used. Vickers hardness HV1, Young’s modulus E, apparent density ρ and indentat...
Article
Full-text available
Magnesium alloys, due to their unique properties, low density and high strength properties, are becoming more frequently used in industrial applications. However, a limitation of their use may be the need to ensure high abrasive wear resistance and corrosion resistance. Therefore, magnesium alloys are often protected by applying protective coatings...
Article
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The aim of the paper was to investigate the air oxidation behaviour of pack aluminised steels exposed at 650 °C for 1000 h in static natural air atmosphere. The pack coatings were doped by rare elements such as gadolinium (Gd), cerium oxide (CeO2), and lanthanum (La) in order to enhance the corrosion resistance and plasticity of the deposited layer...
Article
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This study was carried out to evaluate a series of ceramic coatings in a sulfidation atmosphere containing 99% synthetic air and 1% H 2 S (vol.%) under a flow rate of 50 mL/min. The study was carried out at 773.15 K for 336 hours (heating rate 278.15 K/min). Chemically resistant glass enamels based on SiO 2 -B 2 O 3 -TiO 2 -Na 2 O compounds were de...
Article
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The increase in the use of magnesium alloys in industry has caused the growth of recycling of a great number of recyclable materials to be exploited. Therefore, recycling of the circulating scrap is getting a high priority technological issue. It is well known that this issue is really tough because of a considerably high reactivity and susceptibil...
Article
Full-text available
Ti(C,N)-reinforced alumina-zirconia composites with different ratios of C to N in titanium carbonitride solid solutions, such as Ti(C0.3,N0.7) (C:N = 30:70) and Ti(C0.5,N0.5) (C:N = 50:50), were tested to improve their mechanical properties. Spark plasma sintering (SPS) with temperatures ranging from 1600 °C to 1675 °C and pressureless sintering (P...
Article
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In this work, we report that modification of the chemical composition of grain boundaries of La2/3-xLi3xTiO3 double perovskite, one of the most promising Li-ion conducting solid electrolytes, can be a convenient and versatile way of controlling the space charge potential, leading to a mitigated electrical resistance of the grain boundaries. Two gro...
Article
The study was carried out in order to evaluate oxidation resistance of the ceramic coatings based on SiO2‐B2O3‐TiO2‐Na2O composition deposited on the low alloyed steel T/P22 (10H2M) surface exposed for 1000 hours at 540 °C in oxidation atmosphere. Kinetic data was recorded periodically every 250 hours; macro and micro analyses as well as chemical c...

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