Wyniki wyszukiwania - BazTech

1

Tribological properties of oxide coatings produced on en aw-5251 alloy using different distances between electrodes

Bara Marek, Dwornicka Renata

Quality Production Improvement - QPI

|

2019

|

Vol. 1, Iss. 1

400--405

EN

The subject of the presented work was the analysis of the influence of the distance between the electrodes using in the coating process on the tribological properties of oxide coatings. Oxide coatings were prepared on EN AW-5251 aluminum alloy samples. The samples surfaces were subjected to hard anodizing process in a multicomponent electrolyte based on sulfuric acid with an addition of organic acids. Anodizing was carried out with a constant electric charge density of 180 A•min/dm2 . The distances between the electrodes for subsequent samples increased every 0.125 m up to 1 m. The tribological partner in a sliding couple with oxide layers was pin of PEEK/BG. Tribological tests were conducted on a T-17 tester in reciprocating motion, in technically dry friction conditions. Before and after tribological test, examination of the geometrical structure of counter-specimens’ surface was carried out using the Form Talysurf contact profilographometer, via a 3D method. The most satisfactory tribological parameters were obtained for the PEEK/BG association with the coating produced at a distance between the electrodes equal to 0.25 m.

2

Właściwości anodowej powłoki twardej modyfikowanej polimerem w zastosowaniach do węzłów o ruchu posuwisto-zwrotnym

Służałek G., Duda P., Wistuba H.

Tribologia

|

2012

|

nr 3

185-192

PL

W artykule przedstawiono charakterystyki tribologiczne kojarzenia trzpień-płaszczyzna w ruchu posuwisto-zwrotnym (Tester T-17 produkcji ITeE - PIB w Radomiu) w warunkach tarcia technicznie suchego. Poddano analizie przeciwpróbki wykonane z czystego APT i APT modyfikowanego polimerem. W artykule przedstawiono również badania stereometryczne i obserwacje mikroskopowe. Przeprowadzone badania i analiza wyników potwierdziły przydatność tak uszczelnionej warstwy do zastosowań na elementy ślizgowe w skojarzeniach o ruchu rewersyjnym. W pracy zamieszczono model 3D analizowanej warstwy.

EN

The paper represents the results of investigations conducted on a tribological test for technically dry conditions of the friction. Analysis of the stereological counter-specimen was subjected from AOC and AOC modified sealed up the polymers that is composites coats. Polymerisation occurred at a temperature below the recrystallization temperature of the alloy EN AW 5251. The values of the coefficient of the friction, the results of investigations AFM, and the parameters of the roughness were compared. The tribological properties of the composites are investigated using the pin-on-plate type wear tester T-17. This paper shows 3D models of the AOC modified polymer and the mechanism of wearing. Tribological measurements show the reduced wear and friction of the composite coatings as compared with the pure anodic oxide.

3

3D model of anodic oxide coating modified with carbon particles

Służałek G., Wistuba H., Kubica M.

Diagnostyka

|

2011

|

nr 3(59)

61-64

EN

In this paper shown three-dimensional model of composite hard anodic layer modified by carbon particles. Modifications were carried by vacuum sublimation by a graphite electrode. The modified layer is characterized by improved tribological properties (friction coefficient) compared to the unmodified layer. Test conditions and values of the coefficients of friction are presented for the combination of pin-on-disc pair in T-01M tester. The 3D model was made in parametric CAD program Solid Edge v19 pl, which allows to explain the decrease in the coefficient of friction.

PL

W pracy przedstawiono trójwymiarowy model kompozytowej warstwy ceramiczno-grafitowej powstałej w wyniku modyfikowania anodowej powłoki twardej. Modyfikacje przeprowadzono w procesie napylania próżniowego. Warstwa modyfikowana charakteryzuje się lepszymi właściwościami tribologicznymi (współczynnik tarcia) w porównaniu do warstwy niemodyfikowanej. Warunki badań oraz wartości współczynników tarcia zestawiono dla skojarzenia trzpień-tarcza testera T-01M. Model 3D warstwy wykonano w parametrycznym programie CAD Solid Edge v19, który pozawala na wyjaśnienie zmniejszenia się współczynnika tarcia.