Instytut Podstawowych Problemów Techniki
Polskiej Akademii Nauk

Pracownicy

mgr inż. Piotr Jenczyk

Zakład Mechaniki Materiałów (ZMM)
Pracownia Warstwy Wierzchniej (PWW)
stanowisko: specjalista
doktorant
telefon: (+48) 22 826 12 81 wewn.: 149
pokój: 231
e-mail:
ORCID: 0000-0002-4788-0450

Ostatnie publikacje
1.  Ciurans-Oset M., Flasar P., Jenczyk P., Jarząbek D. M., Mouzon J., Akhtar F., Role of the microstructure and the residual strains on the mechanical properties of cast tungsten carbide produced by different methods, Journal of Materials Research and Technology, ISSN: 2238-7854, DOI: 10.1016/j.jmrt.2024.04.067, Vol.30, pp.3640-3649, 2024

Streszczenie:
Cast tungsten carbide (CTC) is a biphasic, pearlitic-like structure composed of WC lamellae in a matrix of W2C. Besides excellent flowability, spherical CTC powders exhibit superior hardness and wear resistance. Nevertheless, the available literature generally fails to explain the physical mechanisms behind such a phenomenon. In the present work, the microstructure and the mechanical properties of the novel centrifugally-atomized spherical CTC have been extensively investigated. This material exhibited an extremely fine microstructure, with WC lamellae of 27–29 nm in thickness and bulk lattice strains of 1.0–1.4 %, resulting in a microindentation hardness of 31.4 ± 1.6 GPa. The results of this study clearly show that centrifugally-atomized CTC is mechanically superior to both spheroidized CTC and conventional cast-and-crushed CTC. In addition, the effect of a series of heat treatments on the bulk fracture toughness and the fatigue life of entire CTC particles was also investigated. The reduction of residual stresses in the bulk of particles upon annealing dramatically increased the indentation fracture toughness, whereas the bulk microindentation hardness remained essentially unaffected. Regarding the fatigue life of entire particles under uniaxial cyclic compressive loading, local phase transformation phenomena at the surface of the particles upon heat treatment were concluded to play the most critical role. Indeed, the cumulative fatigue damage was minimized in surface-carburized CTC powders, where compressive stresses were induced at the outermost surface.

Słowa kluczowe:
Cast tungsten carbide, Microindentation hardness, X-ray diffraction, Lattice microstrains, Dislocation density, Compression

Afiliacje autorów:
Ciurans-Oset M. - inna afiliacja
Flasar P. - inna afiliacja
Jenczyk P. - IPPT PAN
Jarząbek D. M. - IPPT PAN
Mouzon J. - inna afiliacja
Akhtar F. - Luleå University of Technology (SE)
100p.
2.  Nosewicz S., Jenczyk P., Romelczyk-Baishya B., Bazarnik P., Jarząbek D.M., Majchrowicz K., Pakieła Z., Kowiorski K., Chmielewski M., The influence of spark plasma sintering on multiscale mechanical properties of nickel-based composite materials, MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, ISSN: 0921-5093, DOI: 10.1016/j.msea.2023.146001, Vol.891, pp.146001- , 2024

Streszczenie:
The paper presents a comprehensive investigation of the influence of the main process parameters of spark plasma sintering on the mechanical and microstructural properties of nickel-silicon carbide composites at various scales. Microstructure analysis performed by scanning and transmission electron microscopy revealed a significant interfacial reaction between nickel and silicon carbide due to the decomposition of silicon carbide. The chemical interaction of the matrix and reinforcement results in the formation of a multicomponent interphase zone formed by silicides (Ni31Si12 or/and Ni3Si) and graphite precipitates. Furthermore, several types of structure defects were observed (mainly nano/micropores at the phase boundaries). These significantly influenced the mechanical response of nickel-silicon carbide composites at different levels. At the macroscopic scale, uniaxial tensile tests confirmed that applying a 1000 oC sintering temperature ensured that the manufactured composite was characterised by satisfactory tensile strength, however, with a considerable reduction of material elongation compared to pure nickel. Moreover, the fractography study allowed us to identify a significant difference in the damage mode for certain nickel-silicon carbide samples. Secondly, the interface of the nickel matrix and silicate interphase was tested by bending with microcantilevers to evaluate its deformation behaviour, strength, and fracture characteristics. It was confirmed that a diffusive kind of interface, such as Ni-NiSi, demonstrates unexpected bonding properties with a relatively large range of plastic deformation. Finally, the nanoindentation of three main components of the nickel-silicon carbide composite was executed to evaluate the evolution of nanohardness, Young’s modulus, and elastic recovery due to the application of various spark plasma sintering conditions.

Słowa kluczowe:
nickel-based composite,silicon carbide,spark plasma sintering,multiscale characterization,mechanical properties,nanoindentation,bending of microcantilevers

Afiliacje autorów:
Nosewicz S. - IPPT PAN
Jenczyk P. - IPPT PAN
Romelczyk-Baishya B. - Politechnika Warszawska (PL)
Bazarnik P. - Politechnika Warszawska (PL)
Jarząbek D.M. - IPPT PAN
Majchrowicz K. - inna afiliacja
Pakieła Z. - Politechnika Warszawska (PL)
Kowiorski K. - inna afiliacja
Chmielewski M. - Institute of Electronic Materials Technology (PL)
3.  Milczarek M., Jarząbek D., Jenczyk P., Bochenek K., Filipiak M., Novel paradigm in AFM probe fabrication: Broadened range of stiffness, materials, and tip shapes, TRIBOLOGY INTERNATIONAL, ISSN: 0301-679X, DOI: 10.1016/j.triboint.2023.108308, Vol.180, No.108308, pp.1-12, 2023

Streszczenie:
Atomic force microscopes could be used in wide range of nanotribology experiments but probes available on the market are only made of silicon or silicon nitride with a stiffness in the range of 0.01–100 N/m, which significantly limits the possible research. We strive to solve this problem by designing all-metal probes. The proposed fabrication method is characterised by the use of a copper substrate and electrodeposition in a mould prepared by indentation and photolithography. Prototype probes fabricated with this method were made of nickel with a stiffness of 20 N/m and 2800 N/m and were used for topography and friction measurements. Both the method and all-metal probes showed flexibility and great potential, especially in the field of nano/microtribology.

Słowa kluczowe:
Atomic force microscopy, Microfabrication, Cantilever, Metal probe, Friction, Nanotribology

Afiliacje autorów:
Milczarek M. - IPPT PAN
Jarząbek D. - IPPT PAN
Jenczyk P. - IPPT PAN
Bochenek K. - IPPT PAN
Filipiak M. - inna afiliacja
200p.
4.  Wilczewski S., Skórczewska K., Tomaszewska J., Osial M., Dąbrowska A., Nikiforow K., Jenczyk P., Grzywacz H., Graphene Modification by Curcuminoids as an Effective Method to Improve the Dispersion and Stability of PVC/Graphene Nanocomposites, Molecules, ISSN: 1420-3049, DOI: 10.3390/molecules28083383, Vol.28, No.8, pp.1-25, 2023

Słowa kluczowe:
graphene, curcuminoids, poly(vinyl chloride), nanocomposites stability, polymer films

Afiliacje autorów:
Wilczewski S. - inna afiliacja
Skórczewska K. - inna afiliacja
Tomaszewska J. - inna afiliacja
Osial M. - IPPT PAN
Dąbrowska A. - Uniwersytet Warszawski (PL)
Nikiforow K. - inna afiliacja
Jenczyk P. - IPPT PAN
Grzywacz H. - IPPT PAN
140p.
5.  Abramowicz M., Osial M., Urbańska W., Walicki M., Wilczewski S., Pręgowska A., Skórczewska K., Jenczyk P., Warczak M., Pisarek M., Giersig M., Upcycling of Acid-Leaching Solutions from Li-Ion Battery Waste Treatment through the Facile Synthesis of Magnetorheological Fluid, Molecules, ISSN: 1420-3049, DOI: 10.3390/molecules28062558, Vol.28, No.6, pp.2558-1-2558-16, 2023

Streszczenie:
The rapidly growing production and usage of lithium-ion batteries (LIBs) dramatically raises the number of harmful wastes. Consequently, the LIBs waste management processes, taking into account reliability, efficiency, and sustainability criteria, became a hot issue in the context of environmental protection as well as the scarcity of metal resources. In this paper, we propose for the first time a functional material—a magnetorheological fluid (MRF) from the LIBs-based liquid waste containing heavy metal ions. At first, the spent battery waste powder was treated with acid-leaching, where the post-treatment acid-leaching solution (ALS) contained heavy metal ions including cobalt. Then, ALS was used during wet co-precipitation to obtain cobalt-doped superparamagnetic iron oxide nanoparticles (SPIONs) and as an effect, the harmful liquid waste was purified from cobalt. The obtained nanoparticles were characterized with SEM, TEM, XPS, and magnetometry. Subsequently, superparamagnetic nanoparticles sized 15 nm average in diameter and magnetization saturation of about 91 emu g−1 doped with Co were used to prepare the MRF that increases the viscosity by about 300% in the presence of the 100 mT magnetic fields. We propose a facile and cost-effective way to utilize harmful ALS waste and use them in the preparation of superparamagnetic particles to be used in the magnetorheological fluid. This work describes for the first time the second life of the battery waste in the MRF and a facile way to remove the harmful ingredients from the solutions obtained after the acid leaching of LIBs as an effective end-of-life option for hydrometallurgical waste utilization.

Słowa kluczowe:
environment protection SPION, battery waste, toxic waste management, direct recycling, sustainability, circular economy, critical raw materials

Afiliacje autorów:
Abramowicz M. - Uniwersytet Warszawski (PL)
Osial M. - IPPT PAN
Urbańska W. - Wroclaw University of Science and Technology (PL)
Walicki M. - inna afiliacja
Wilczewski S. - IPPT PAN
Pręgowska A. - IPPT PAN
Skórczewska K. - inna afiliacja
Jenczyk P. - IPPT PAN
Warczak M. - Institute of Physical Chemistry, Polish Academy of Sciences (PL)
Pisarek M. - Institute of Physical Chemistry, Polish Academy of Sciences (PL)
Giersig M. - IPPT PAN
140p.
6.  Manecka-Padaż A., Jenczyk P., Pęcherski R., Nykiel A., Experimental investigation of Euler’s elastica: in-situ SEM nanowire post-buckling, BULLETIN OF THE POLISH ACADEMY OF SCIENCES: TECHNICAL SCIENCES, ISSN: 0239-7528, DOI: 10.24425/bpasts.2022.143648, Vol.70(6), No.e143648, pp.1-6, 2023

Streszczenie:
An in-situ nanoindenter with a flat tip was employed to conduct buckling tests of a single nanowire with simultaneous SEM imaging. A series of SEM images allowed us to calculate deflection. The deflection was confronted with the mathematical model of elastica. The post-buckling behaviour of nanowires is conducted in the framework of the nonlinear elasticity theory. Results show the significant effect of geometrical parameters on the stability of buckled nanowires.

Słowa kluczowe:
post-buckling, nanowire, nanomechanics

Afiliacje autorów:
Manecka-Padaż A. - IPPT PAN
Jenczyk P. - IPPT PAN
Pęcherski R. - IPPT PAN
Nykiel A. - inna afiliacja
100p.
7.  Wilczewski S., Skórczewska K., Tomaszewska J., Lewandowski K., Studziński W., Osial M., Jenczyk P., Grzywacz H., Domańska A., Curcuma longa L. Rhizome Extract as a Poly(vinyl chloride)/Graphene Nanocomposite Green Modifier, Molecules, ISSN: 1420-3049, DOI: 10.3390/molecules27228081, Vol.27, No.8081, pp.1-18, 2022

Streszczenie:
In this work, a method to increase the dispersion of graphene (GN) in the matrix of rigid
poly(vinyl chloride) (PVC) by using a natural plant extract from Curcuma longa L. (CE) is proposed. Currently, despite the increasing number of reports on the improvement of GN dispersion in PVC blends, still there is a need to find environmentally friendly and economical dispersion stabilizers. We proposed a stabilizer that can be easily obtained from a plant offering thermal stability and high effectiveness. PVC/GN nanocomposites stabilized with the proposed extract were investigated by SEM, AFM (structure), TGA, and Congo red test (thermal properties). Additionally, static and dynamic mechanical properties and electrical resistivity were measured. The use of CE as a graphene dispersant improved its dispersion in the PVC matrix, influenced tensile properties, increased the storage modulus and glass transition temperature, and extended the thermal stability time of nanocomposites. In this work, a CE extract is proposed as an efficient eco-friendly additive for the production of nanocomposites with an improved homogeneity of a nanofiller in the matrix and promising characteristics.

Słowa kluczowe:
nanocomposites,graphene,poly(vinyl chloride),curcuma extract

Afiliacje autorów:
Wilczewski S. - inna afiliacja
Skórczewska K. - inna afiliacja
Tomaszewska J. - inna afiliacja
Lewandowski K. - inna afiliacja
Studziński W. - inna afiliacja
Osial M. - IPPT PAN
Jenczyk P. - IPPT PAN
Grzywacz H. - IPPT PAN
Domańska A. - inna afiliacja
140p.
8.  Jenczyk P., Jarząbek D.M., Lu Z., Gadalińska E., Levintant-Zayonts N., Zhang Y., Unexpected crystallographic structure, phase transformation, and hardening behavior in the AlCoCrFeNiTi0.2 high-entropy alloy after high-dose nitrogen ion implantation, Materials & Design, ISSN: 0264-1275, DOI: 10.1016/j.matdes.2022.110568, Vol.216, pp.110568-1-11, 2022

Streszczenie:
Harsh environments, such as nuclear power plants, require the development of materials with stable properties when exposed to radiation/bombardment conditions. In this work, a bulk high-entropy alloy (HEA) was implanted with nitrogen ions accelerated at 50 kV to induce and study crystal structural defects. X-ray powder diffraction (XRD) showed that the studies HEA consisted of two phases—σ and body-centered cubic (BCC)—and underwent the σ to BCC phase transformation due to ion bombardment. Unexpectedly, XRD peaks of implanted samples could not be assigned to any known simple nitride, a finding that suggests the creation of new high- or medium-entropy ceramics. Studies of the mechanical and tribological properties with the use of nanoindentation and scratch tests revealed a hardening of both phases of the implanted surface and higher wear resistance. There were also surprising increases in the hardness-to-Young’s modulus ratio and elastic recovery for both phases. The results are promising not only for the nuclear applications, but also for space applications, mechanical engineering, and tribology.

Słowa kluczowe:
high-entropy alloys, high-entropy ceramics, ion implantation, irradiation, phase transformation

Afiliacje autorów:
Jenczyk P. - IPPT PAN
Jarząbek D.M. - IPPT PAN
Lu Z. - University of Science and Technology Beijing (CN)
Gadalińska E. - Institute of Aviation (PL)
Levintant-Zayonts N. - IPPT PAN
Zhang Y. - University of Science and Technology Beijing (CN)
140p.
9.  Grzywacz H., Jenczyk P., Milczarek M., Michałowski M., Jarząbek D.M., Burger model as the best option for modeling of viscoelastic behavior of resists for nanoimprint lithography, Materials, ISSN: 1996-1944, DOI: 10.3390/ma14216639, Vol.14, No.21, pp.6639-1-12, 2021

Streszczenie:
In this study, Atomic Force Microscopy-based nanoindentation (AFM-NI) with diamond-like carbon (DLC) coated tip was used to analyze the mechanical response of poly(methyl methacrylate) (PMMA) thin films (thicknesses: 235 and 513 nm) on a silicon substrate. Then, Oliver and Pharr (OP) model was used to calculate hardness and Young’s modulus, while three different Static Linear Solid models were used to fit the creep curve and measure creep compliance, Young’s modulus, and viscosity. Values were compared with each other, and the best-suited method was suggested. The impact of four temperatures below the glass transition temperature and varied indentation depth on the mechanical properties has been analyzed. The results show high sensitivity on experiment parameters and there is a clear difference between thin and thick film. According to the requirements in the nanoimprint lithography (NIL), the ratio of hardness at demolding temperature to viscosity at molding temperature was introduced as a simple parameter for prediction of resist suitability for NIL. Finally, thinner PMMA film was tentatively attributed as more suitable for NIL.

Słowa kluczowe:
PMMA, atomic force microscopy-based nanoindentation, Young’s modulus, hardness, viscosity, Burger creep model, nanoimprint lithography

Afiliacje autorów:
Grzywacz H. - IPPT PAN
Jenczyk P. - IPPT PAN
Milczarek M. - IPPT PAN
Michałowski M. - Politechnika Warszawska (PL)
Jarząbek D.M. - IPPT PAN
140p.
10.  Psiuk R., Milczarek M., Jenczyk P., Denis P., Jarząbek D., Bazarnik P., Pisarek M., Mościcki T., Improved mechanical properties of W-Zr-B coatings deposited by hybrid RF magnetron – PLD method, APPLIED SURFACE SCIENCE, ISSN: 0169-4332, DOI: 10.1016/j.apsusc.2021.151239, Vol.570, pp.151239-1-11, 2021

Streszczenie:
In this work, novel W-Zr-B coatings were developed by a hybrid process combining pulsed laser deposited ZrB2 and radio frequency magnetron sputtered W2B5. The influence of the laser power density on the structure and mechanical properties of the deposited films was studied. Addition of zirconium causes a change in the structure of the deposited films from columnar to mainly amorphous. The nanoindentation tests and compression of nanopillars showed that doped W-Zr-B layers are still super-hard and incompressible in comparison to WB2 films without doping, but they change their behaviour from brittle to ductile. Films obtained with a fluence of 1.06 J/cm2 are superhard (H = 40 ± 4 GPa) and incompressible (12 ± 1 GPa), but possess a relatively low Young’s modulus (E = 330 ± 32 GPa) and a high elastic recovery (We = 0.9). Further increase in the fluence causes films to consist of deeply embedded fragments of laser ablated ZrB2 target in the deposited layer. Taking into account that the particles are made of ZrB2 which possess extraordinary thermal properties, and the matrix is made of W-Zr-B, a super-hard material, such a composite can also be interesting for industrial applications.

Słowa kluczowe:
superhard tungsten borides, hybrid magnetron sputtering – pulsed laser deposition, nanopillar compression

Afiliacje autorów:
Psiuk R. - IPPT PAN
Milczarek M. - IPPT PAN
Jenczyk P. - IPPT PAN
Denis P. - IPPT PAN
Jarząbek D. - IPPT PAN
Bazarnik P. - Politechnika Warszawska (PL)
Pisarek M. - Institute of Physical Chemistry, Polish Academy of Sciences (PL)
Mościcki T. - IPPT PAN
140p.
11.  Nosewicz S., Bazarnik P., Clozel M., Kurpaska Ł., Jenczyk P., Jarząbek D., Chmielewski M., Romelczyk-Baishya B., Lewandowska M., Pakieła Z., Huang Y., Langdon T.G., A multiscale experimental analysis of mechanical properties and deformation behavior of sintered copper–silicon carbide composites enhanced by high-pressure torsion, ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING, ISSN: 1644-9665, DOI: 10.1007/s43452-021-00286-4, Vol.21, pp.131-1-19, 2021

Streszczenie:
Experiments were conducted to investigate, within the framework of a multiscale approach, the mechanical enhancement, deformation and damage behavior of copper–silicon carbide composites (Cu–SiC) fabricated by spark plasma sintering (SPS) and the combination of SPS with high-pressure torsion (HPT). The mechanical properties of the metal–matrix composites were determined at three different length scales corresponding to the macroscopic, micro- and nanoscale. Small punch testing was employed to evaluate the strength of composites at the macroscopic scale. Detailed analysis of microstructure evolution related to SPS and HPT, sample deformation and failure of fractured specimens was conducted using scanning and transmission electron microscopy. A microstructural study revealed changes in the damage behavior for samples processed by HPT and an explanation for this behavior was provided by mechanical testing performed at the micro- and nanoscale. The strength of copper samples and the metal–ceramic interface was determined by microtensile testing and the hardness of each composite component, corresponding to the metal matrix, metal–ceramic interface, and ceramic reinforcement, was measured using nano-indentation. The results confirm the advantageous effect of large plastic deformation on the mechanical properties of Cu–SiC composites and demonstrate the impact on these separate components on the deformation and damage type.

Słowa kluczowe:
copper–silicon carbide composite, high-pressure torsion, metal–matrix composites, multiscale analysis, nano-indentation, small punch test

Afiliacje autorów:
Nosewicz S. - IPPT PAN
Bazarnik P. - Politechnika Warszawska (PL)
Clozel M. - National Centre for Nuclear Research (PL)
Kurpaska Ł. - National Centre for Nuclear Research (PL)
Jenczyk P. - IPPT PAN
Jarząbek D. - IPPT PAN
Chmielewski M. - Institute of Electronic Materials Technology (PL)
Romelczyk-Baishya B. - Politechnika Warszawska (PL)
Lewandowska M. - inna afiliacja
Pakieła Z. - Politechnika Warszawska (PL)
Huang Y. - Bournemouth University (GB)
Langdon T.G. - University of Southampton (GB)
140p.
12.  Jenczyk P., Grzywacz H., Milczarek M., Jarząbek D.M., Mechanical and tribological properties of co-electrodeposited particulate-reinforced metal matrix composites: a critical review with interfacial aspects, Materials, ISSN: 1996-1944, DOI: 10.3390/ma14123181, Vol.14, No.12, pp.3181-1-36, 2021

Streszczenie:
Particulate-reinforced metal matrix composites (PRMMCs) with excellent tribo-mechanical properties are important engineering materials and have attracted constant scientific interest over the years. Among the various fabrication methods used, co-electrodeposition (CED) is valued due to its efficiency, accuracy, and affordability. However, the way this easy-to-perform process is carried out is inconsistent, with researchers using different methods for volume fraction measurement and tribo-mechanical testing, as well as failing to carry out proper interface characterization. The main contribution of this work lies in its determination of the gaps in the tribo-mechanical research of CED PRMMCs. For mechanical properties, hardness is described with respect to measurement methods, models, and experiments concerning CED PRMMCs. The tribology of such composites is described, taking into account the reinforcement volume fraction, size, and composite fabrication route (direct/pulsed current). Interfacial aspects are discussed using experimental direct strength measurements. Each part includes a critical overview, and future prospects are anticipated. This review paper provides an overview of the tribo-mechanical parameters of Ni-based co-electrodeposited particulate-reinforced metal matrix composite coatings with an interfacial viewpoint and a focus on hardness, wear, and friction behavior.

Słowa kluczowe:
experimental mechanics, tribology, co-electrodeposited composites

Afiliacje autorów:
Jenczyk P. - IPPT PAN
Grzywacz H. - IPPT PAN
Milczarek M. - IPPT PAN
Jarząbek D.M. - inna afiliacja
140p.
13.  Grzywacz H., Milczarek M., Jenczyk P., Dera W., Michałowski M., Jarząbek D.M., Quantitative measurement of nanofriction between PMMA thin films and various AFM probes, MEASUREMENT, ISSN: 0263-2241, DOI: 10.1016/j.measurement.2020.108267, Vol.168, pp.108267-1-13, 2020

Streszczenie:
This study reports the quantitative, precise and accurate results of nanoscale friction measurements with the use of an Atomic Force Microscope calibrated with a precise nanoforce sensor. For this purpose, three samples of spin-coated thin Polymethylmethacrylate (PMMA) films were prepared with the following thicknesses: 235, 343, and 513 nm. Three different AFM probes were used for the friction measurements: with diamond-like carbon (DLC) tip with a small (15 nm) or big (2 µm) tip radius, and a reference silicon tip with a small (8 nm) radius. The results show that in all of the studied cases, the coefficient of friction strongly depends on the applied load, being much higher for a lower load. Furthermore, a strong relation of the friction force on the cantilever's geometry, the scanning velocity, and the film thickness was observed.

Słowa kluczowe:
lateral force microscopy, friction, thin PMMA films, atomic force microscope, DLC coatings, adhesion

Afiliacje autorów:
Grzywacz H. - inna afiliacja
Milczarek M. - IPPT PAN
Jenczyk P. - IPPT PAN
Dera W. - IPPT PAN
Michałowski M. - Politechnika Warszawska (PL)
Jarząbek D.M. - inna afiliacja
200p.
14.  Alvi S., Jarząbek D.M., Kohan M.G., Hedman D., Jenczyk P., Natile M.M., Vomiero A., Akhtar F., Synthesis and mechanical characterization of a CuMoTaWV high-entropy film by magnetron sputtering, ACS Applied Materials and Interfaces, ISSN: 1944-8244, DOI: 10.1021/acsami.0c02156, Vol.12, No.18, pp.21070-21079, 2020

Streszczenie:
Development of high-entropy alloy (HEA) films is a promising and cost-effective way to incorporate these materials of superior properties in harsh environments. In this work, a refractory high-entropy alloy (RHEA) film of equimolar CuMoTaWV was deposited on silicon and 304 stainless-steel substrates using DC-magnetron sputtering. A sputtering target was developed by partial sintering of an equimolar powder mixture of Cu, Mo, Ta, W, and V using spark plasma sintering. The target was used to sputter a nanocrystalline RHEA film with a thickness of ~900 nm and an average grain size of 18 nm. X-ray diffraction of the film revealed a body-centered cubic solid solution with preferred orientation in the (110) directional plane. The nanocrystalline nature of the RHEA film resulted in a hardness of 19 ± 2.3 GPa and an elastic modulus of 259 ± 19.2 GPa. A high compressive strength of 10 ± 0.8 GPa was obtained in nanopillar compression due to solid solution hardening and grain boundary strengthening. The adhesion between the RHEA film and 304 stainless-steel substrates was increased on annealing. For the wear test against the E52100 alloy steel (Grade 25, 700-880 HV) at 1 N load, the RHEA film showed an average coefficient of friction (COF) and wear rate of 0.25 (RT) and 1.5 (300 °C), and 6.4 × 10^–6 mm^3/N m (RT) and 2.5 × 10^–5 mm^3/N m (300 °C), respectively. The COF was found to be 2 times lower at RT and wear rate 10^2 times lower at RT and 300 °C than those of 304 stainless steel. This study may lead to the processing of high-entropy alloy films for large-scale industrial applications.

Słowa kluczowe:
high-entropy alloys, magnetron sputtering, spark plasma sintering, mechanical properties, wear

Afiliacje autorów:
Alvi S. - Luleå University of Technology (SE)
Jarząbek D.M. - IPPT PAN
Kohan M.G. - Luleå University of Technology (SE)
Hedman D. - Luleå University of Technology (SE)
Jenczyk P. - IPPT PAN
Natile M.M. - inna afiliacja
Vomiero A. - Luleå University of Technology (SE)
Akhtar F. - Luleå University of Technology (SE)
200p.
15.  Jenczyk P., Gawrońska M., Dera W., Chrzanowska-Giżyńska J., Denis P., Jarząbek D.M., Application of SiC particles coated with a protective Ni layer for production of Ni/SiC co-electrodeposited composite coatings with enhanced tribological properties, CERAMICS INTERNATIONAL, ISSN: 0272-8842, DOI: 10.1016/j.ceramint.2019.08.063, Vol.45, No.17B, pp.23540-23547, 2019

Streszczenie:
In this paper, the mechanical properties of composites consisting of electroplated Ni and co-electrodeposited SiC particles, coated with a thin protective layer of Ni, were studied. The protective layer was on the SiC particles prior to adding them to the electrolyte bath. It was demonstrated that due to the application of the protective layer it was possible to decrease sliding friction force, and improve the wear resistance, of the composite coatings in comparison with standard electroplated composite coatings made of Ni and co-electrodeposited pure SiC particles. Coating SiC particles with Ni was achieved by means of a PVD process. The main advantage of this step is avoiding oxidation of the surface of the particles during the contact with an electrolyte. Particles protected from oxidation lead to stronger interfacial bonding between the matrix and the reinforcement. Furthermore, better bonding protects the SiC particles from being extracted from the matrix by a counter-probe during friction and wear tests. The influence of the particle's concentration is studied. A smaller friction force and constant wear rate was observed.

Słowa kluczowe:
wear, friction, interfacial bonding strength, metal matrix composites, silicon carbide, electrodeposited nickel

Afiliacje autorów:
Jenczyk P. - IPPT PAN
Gawrońska M. - Politechnika Warszawska (PL)
Dera W. - IPPT PAN
Chrzanowska-Giżyńska J. - IPPT PAN
Denis P. - IPPT PAN
Jarząbek D.M. - IPPT PAN
100p.

Abstrakty konferencyjne
1.  Nosewicz S., Jenczyk P., Jarząbek D., Strojny-Nędza A., Kaszyca K., Kowiorski K., Bazarnik P., Pakieła Z., Romelczyk Baishya B., Chmielewski M., Multiscale investigation of microstructural and mechanical properties of spark plasma sintered Ni-SiC composites, AMT'2023, Advanced Materials and Technologies Conference, 2023-06-18/06-21, Wisła (PL), pp.1, 2023

Streszczenie:
In the case of the sintering of composite materials exhibiting mutual solubility, intermediate phases with varying concentrations of elements may appear during the densification process. Microstructural and structural changes, especially in the area of the interface, strongly influence mechanical or thermal properties [1]. A good example of such materials is nickel – silicon carbide composites. At elevated temperatures nickel reacts with silicon carbide, which causes total SiC decomposition, and as a result, new Ni-Si phases are formed and free carbon is precipitated within the reaction zone. In this work, nickel-silicon carbide composites were obtained via the Spark Plasma Sintering method. The detailed microstructural analyses using X-ray diffraction, Raman spectroscopy, scanning electron microscopy and transmission electron microscopy revealed the material’s evolution during sintering. To investigate the correlation between microstructure and properties of obtained materials, the mechanical test at three different length scales (in macro-, micro- and nanoscale) was conducted. To evaluate the strength of Ni-SiC composites at a macroscopic scale the uniaxial tensile and compression tests were employed. The sample deformation and failure mechanism for different stages of sintering were analyzed. The strength of the nickel-silicon carbide interface was determined by bending tests of micro-cantilever beams. Nanoindentation was used to evaluate the hardness of each composite component. The conducted research revealed a strong relation between mechanical strength and sintering conditions.

Afiliacje autorów:
Nosewicz S. - IPPT PAN
Jenczyk P. - IPPT PAN
Jarząbek D. - IPPT PAN
Strojny-Nędza A. - Institute of Electronic Materials Technology (PL)
Kaszyca K. - Lukasiewicz Institute of Microelectronics and Photonics (PL)
Kowiorski K. - inna afiliacja
Bazarnik P. - Politechnika Warszawska (PL)
Pakieła Z. - Politechnika Warszawska (PL)
Romelczyk Baishya B. - inna afiliacja
Chmielewski M. - Institute of Electronic Materials Technology (PL)
2.  Jarząbek D.M., Jenczyk P., Włoczewski M., Microstructure and tribology of nitrided heterogenious eutectic high entropy alloys, FEMS EUROMAT 2023, 17th European Congress and Exhibition on Advanced Materials and Processes, 2023-09-03/09-07, Frankfurt n/Menem (DE), pp.1-1, 2023
3.  Jenczyk P., Jarząbek D.M., Gadalińska E., Levintant-Zayonts N., Lu Z., Zhang Y., Nitrogen ion implantation of AlCoCrFeNiTi0.2 High Entropy Alloy, FEMS EUROMAT 2023, 17th European Congress and Exhibition on Advanced Materials and Processes, 2023-09-03/09-07, Frankfurt n/Menem (DE), pp.1-1, 2023
4.  Jenczyk P., Jarząbek D., Milczarek M., Levintant-Zayonts N., Gadalińska E., High-dose ion implantation: hardening behavior in AlCoCrFeNiTi0.2 high-entropy alloy, NuMat2022, The Nuclear Materials Conference, 2022-10-24/10-28, Ghent (BE), pp.1-1, 2022
5.  Manecka-Padaż A., Pęcherski R.B., Jenczyk P., Jarząbek D., The assessment of the elastic stability of the one-dimensional nanostructures, 9th Wdzydzenaum Workshop on FLUID – SOLID INTERACTION, 2021-09-05/09-10, Wdzydze Kiszewskie (PL), pp.17, 2021
6.  Jenczyk P., Jarząbek D.M., Influence of protective Ni coating on SiC particles on tribological properties of coelectrodeposited Ni-SiC composite coating, EUROMAT 2019, European Congress and Exhibition on Advanced Materials and Processes 2019, 2019-09-01/09-05, Stockholm (SE), pp.763, 2019

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pdf
431750
2019-11-08
BUP 10/2021
2021-05-17
Jarząbek D.M., Jenczyk P.
Urządzenie do zastosowania jako łożysko lub prowadnica liniowa, sposób jego wykonania oraz jego zastosowanie jako siłomierza
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