mgr inż. Hanna Słomińska

Zakład Mechaniki Doświadczalnej (ZMD)
Pracownia Technologicznych Zastosowań Laserów (PTZL)
stanowisko: laborant
telefon: (+48) 22 826 12 81 wew.: 236
pokój: 034
e-mail: hslom

Ostatnie publikacje
1.Psiuk R., Słomińska H., Hoffman J., Mościcki T., Super-hard films W-B and W-Ti-B deposited from targets sintered by SPS method, Metal Forming, ISSN: 0867-2628, Vol.XXX, No.2, pp.107-120, 2019

Streszczenie:

With increasing demand for high-performance and long-lasting cutting and forming tools, the members of this expanding class of superhard metals hold promise to address the shortcomings of traditional tool materials. Those shortcoming include their high cost (silicon nitride, cubic boron nitride, and diamond), their inability to cut ferrous metals due to chemical reactions (diamond), instability in the presence of humidity (cubic boron nitride) and relatively low hardness (tungsten carbide). Also the increasing industrial demand for protective coatings with high hardness, good elastic properties and thermal stability calls for the investigation of new material systems. Although transition metal (TM) nitrides are successfully applied for different tasks in automotive or aero-space industries, the search for improved materials is an ongoing topic, being far from its end. In this work the study on deposition of thin films made of new super-hard materials (SHM) such as tungsten boride are presented. Additionally, the influence of doping by titanium of those materials is investigated. Investigated films were deposited by the pulsed laser deposition method. The used targets were synthetized by SPS method. The powders of boron and tungsten in 4.5 to 1 molar faction were used. The films deposited by PLD method have stoichiometric composition such as used targets. The WB2 and WB3 phase are dominant. Research carried out using SEM, XRD and nanoindentation test showed that the phase composition of the targets is more important in the case of laser deposition than magnetron. All obtained layers are very hard and thermally stable. In the case of magnetron sputtering, smooth layers were obtained while the layers deposited by the laser have a very high roughness. Titanium doping increases the amount of WB3 phase in the sintered discs, while it has no significant effect on the properties of the deposited layers.

Słowa kluczowe:

laser ablation, tungsten borides doped titanium, plasma sintering

Afiliacje autorów:

Psiuk R.-IPPT PAN
Słomińska H.-IPPT PAN
Hoffman J.-IPPT PAN
Mościcki T.-IPPT PAN
10p.
2.Gloc M., Słomińska H., Ciupiński Ł., Hydrogen Influence on Microstructure and Properties of Novel Explosive Welded Corrosion Resistant Clad Materials, DEFECT AND DIFFUSION FORUM, ISSN: 1662-9507, DOI: 10.4028/www.scientific.net/DDF.382.167, Vol.382, pp.167-172, 2018

Streszczenie:

The aim of this work was to investigate whether the explosively welded metals are susceptible to hydrogen degradation. The materials described in this article are widely used nickel alloy Inconel C-276 and super duplex steel SAF 2507 as clad materials for their superior resistance to corrosive environment and low alloy steel P355NH as a base material. It was observed that at the explosive bonded interface between the base steel and the stainless steel some local melting zones are formed. It was found that the cathodic hydrogen charging causes changes in the microstructure of bonded materials and decreases the shear strength of bonds as well as the corrosion resistance of clads.

Słowa kluczowe:

novel materials, explosive welding, hydrogen degradation

Afiliacje autorów:

Gloc M.-Warsaw University of Technology (PL)
Słomińska H.-other affiliation
Ciupiński Ł.-Warsaw University of Technology (PL)

Abstrakty konferencyjne
1.Mościcki T., Psiuk R., Słomińska H., Influence of titanium addition on the phase composition and properties of tungsten borides thin films, PLATHINIUM, Plasma Thin film International Union Meeting, 2019-09-23/09-27, Antibes (FR), pp.1-2, 2019
2.Psiuk R., Słomińska H., Chrzanowska-Giżyńska J., Mościcki T., Supertwarde warstwy W-B i W-Ti-B osadzane z tarcz spiekanych metodą SPC, I Ogólnopolskie Seminarium Spark Plasma Sintering, 2018-10-24/10-24, Poznań (PL), pp.25-25, 2018
3.Chrzanowska-Giżyńska J., Denis P., Psiuk R., Słomińska H., Mihailescu I., Ristoscu C., Mościcki T., Szymański Z., Thin WBx and WXTi1-xB2 films deposited by combined magnetron sputtering and pulsed laser deposition technique, ICPEPA-11, 11th International Conference on Photo-Excited Processes and Applications, 2018-09-10/09-14, Vilnius (LT), No.P2, pp.113-113, 2018
4.Słomińska H., Psiuk R., Chrzanowska-Giżyńska J., Mościcki T., The effect of titanium incorporation on the properties of W-Ti-B superhard films deposited by PLD and MS methods, NANOSMAT, 13th International Conference on Surfaces, Coatings and Nanostructured Materials, 2018-09-11/09-14, Gdańsk (PL), No.33, pp.16-17, 2018