Institute of Fundamental Technological Research
Polish Academy of Sciences

Staff

Piotr Jenczyk, MSc

Department of Mechanics of Materials (ZMM)
Division of Surface Layers (PWW)
position: specialist
PhD student
telephone: (+48) 22 826 12 81 ext.: 149
room: 231
e-mail:
ORCID: 0000-0002-4788-0450

Recent publications
1.  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

Abstract:
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.

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

Affiliations:
Psiuk R. - IPPT PAN
Milczarek M. - IPPT PAN
Jenczyk P. - IPPT PAN
Denis P. - IPPT PAN
Jarząbek D. - IPPT PAN
Bazarnik P. - Warsaw University of Technology (PL)
Pisarek M. - other affiliation
Mościcki T. - IPPT PAN
2.  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

Abstract:
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.

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

Affiliations:
Nosewicz S. - IPPT PAN
Bazarnik P. - Warsaw University of Technology (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. - Warsaw University of Technology (PL)
Lewandowska M. - other affiliation
Pakieła Z. - Warsaw University of Technology (PL)
Huang Y. - Bournemouth University (GB)
Langdon T.G. - University of Southampton (GB)
3.  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

Abstract:
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.

Keywords:
experimental mechanics, tribology, co-electrodeposited composites

Affiliations:
Jenczyk P. - IPPT PAN
Grzywacz H. - IPPT PAN
Milczarek M. - IPPT PAN
Jarząbek D.M. - other affiliation
4.  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

Abstract:
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.

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

Affiliations:
Grzywacz H. - other affiliation
Milczarek M. - IPPT PAN
Jenczyk P. - IPPT PAN
Dera W. - IPPT PAN
Michałowski M. - Warsaw University of Technology (PL)
Jarząbek D.M. - other affiliation
5.  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

Abstract:
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.

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

Affiliations:
Alvi S. - other affiliation
Jarząbek D.M. - IPPT PAN
Kohan M.G. - other affiliation
Hedman D. - other affiliation
Jenczyk P. - IPPT PAN
Natile M.M. - other affiliation
Vomiero A. - other affiliation
Akhtar F. - other affiliation
6.  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

Abstract:
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.

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

Affiliations:
Jenczyk P. - IPPT PAN
Gawrońska M. - Warsaw University of Technology (PL)
Dera W. - IPPT PAN
Chrzanowska-Giżyńska J. - IPPT PAN
Denis P. - IPPT PAN
Jarząbek D.M. - IPPT PAN

Conference abstracts
1.  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

Patents
Filing No./Date
Filing Publication
Autors
Title
Protection Area, Applicant Name
Patent Number
Date of Grant
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
PL, Instytut Podstawowych Problemów Techniki PAN
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