EFFECT OF RESIDUAL STRESS ON LOAD BEARING CAPACITY OF PVD COATED SURFACES
Journal Title: Tribologia - Year 2018, Vol 280, Issue 4
Abstract
The article presents the results of spherical indentation modelling of coating-substrate systems. Modelling was carried out using the finite element method. First of all, the effect of the coating thickness on system deformation and stress distribution was taken into analysis, assuming coating thicknesses of 1, 2, and 5 μm, which are typical for tribological applications as well as models with infinitely thick coating and without a coating. The evolution of maximum radial stresses in the indentation within 0 to 3N load is presented. A significant effect of the coating thickness on the value and location of the maximum stress concentration was observed. The effect of internal stresses on surface bearing capacity with PVD coatings was also analysed. The paper presents the possibility of creating failure maps of coating–substrate systems for the assumed mechanical properties of materials, which allows one to determine the load capacity of coated surface or choose the optimal coating thickness when the maximum strength and contact geometry are known.<br/><br/>
Authors and Affiliations
Kinga CHRONOWSKA-PRZYWARA, Marcin KOT
Keywords
Related Articles
- EP ID EP413440
- DOI 10.5604/01.3001.0012.7481
- Views 65
- Downloads 0
Wpływ rodzaju zagęszczacza na charakterystyki tribologiczne smarów plastycznych
W artykule przedstawiono wyniki badań wpływu fazy rozpraszanej na właściwości smarne wybranych kompozycji smarowych. Do wytworzenia smarów plastycznych użyto mineralnej bazy olejowej, którą następnie zagęszczono stearyni...
TRIBOLOGICAL PROPERTIES OF PLASMA SPRAYED Al2O3-13TiO2 NANOSTRUCTURED COATINGS
Ceramic materials are widely used in various industrial applications on components exposed to high temperature, wear, and corrosive conditions. Nowadays, nanostructured materials are of particular scientific interest bec...
Opis uszkodzeń warstwy DLC i podłoża Si w badaniach mikrotwardości z rejestracją sygnału EA
LONGITUDINAL MAGNETIC FIELD IN THE JOURNAL SLIDING BEARING GAP
In this paper, the authors present analytical and numerical modelling of the components of the vector magnetic field’s induction in the journal sliding bearing gap. This issue becomes important when a lubricating agent c...
Charakterystyki tribologiczne APT-T5W w aspekcie różnych węzłów tarcia i rodzajów ruchu
Celem artykułu jest przedstawienie właściwości tribologicznych powłok tlenku aluminium, które zostały wytworzone na stopie aluminium EN-AW-5251 metodą anodowania twardego. Powłoka tlenkowa posiada włóknistą strukturę i p...