THE PHYSICAL AND MECHANICAL PROPERTIES OF (Ti, Hf, Zr, Nb, V, Ta) N COATINGS DEPOSITED IN THE VACUUM-ARC PROCESS
Journal Title: Tribologia - Year 2016, Vol 269, Issue 5
Abstract
Nitride nanostructured coatings, which are based on high entropy alloys implanted with high doses of N + ions to 10X18 cm2 with an energy of 60 KeV were investigated. The coatings were deposited by vacuum circuit-arc method of cathode evaporation on steel samples when applying different potential on the steel substrate and the residual pressure in the chamber. The chamber was supplied by molecular nitrogen for nitride formation. Several methods such as SIMS, EDS, and XRD were used for elemental composition analysis of the coating. A scanning electron microscope with energy dispersive spectrometry was used in order to study the surface of the multi-component coatings and their elemental composition and distribution of elements on the surface coating. Nanohardness and elastic modulus were studies in dynamic mode at Triboindentor. Introduction of N atoms into the lattice led to the formation of solid solution. Nanostructured coatings obtained by vacuum-arc deposition with high micro-strain action show high hardness values (up to 32 GPa) due to the difference in atomic radius of the crystal lattices metal components. The coefficient of friction was in the range of 0.18 to 0.25. Deposited nanostructured films with the given mechanical properties may be used for wear resistant or protective coatings.<br/><br/>
Authors and Affiliations
Y. O. TLEUKENOV, A. D. POGREBNJAK, S. V. PLOTNIKOV, N. K. ERDYBAEVA
Keywords
Related Articles
- EP ID EP242339
- DOI 10.5604/01.3001.0010.6700
- Views 55
- Downloads 0
INTERACTIONS BETWEEN LUBRICANT AND STEEL SUBSTRATE – A CONCEPTUAL METHOD OF ANALYSIS
The paper demonstrates the methods for the analysis of the interaction between lubricant and steel substrate and presents the obtained results. The samples to be tested were commercially available greases as well as grea...
THE INFLUENCE OF MACHINING PARAMETERS ON THE PLACE OF FORMATION AND INTENSITY OF THE WEAR PROCESS OF DRILLS
To determine the wear of drills during their operation, at constant cutting parameters during the one approved tool life under the cut, a series of durability tests of drills made of HS2-5-1 were carried out. The study w...
THE INFLUENCE OF SOLID LUBRICANTS USED FOR THE LUBRICATION OF WHEEL FLANGES ON RAILWAYS TO REDUCE THE CORROSION OF RAILS
The paper presents the influence of selected solid lubricants used for the lubrication of wheel flanges of railways on the formation and development of corrosion. Tested solid lubricants consisted primarily of graphite,...
PORÓWNANIE ZUŻYCIA SMAROWANYCH WODĄ ŁOŻYSK ŚLIZGOWYCH Z PANWIAMI Z NBR ORAZ PTFE
Nadmierne zużycie czopa wału okrętowego może być spowodowane wieloma czynnikami, np. warunkami pracy (temperatura, prędkość poślizgu, naciski, rodzaj czynnika smarnego), rodzajem materiału zastosowanego na panwie łożysk...
STUDY OF THE MODULUS OF ELASTICITY AND THE MICROHARDNESS CHANGES OF NIKASIL COATINGS IN CYLINDER SLEEVES OF COMBUSTION ENGINES DUE TO WEAR
Coatings on surfaces of internal combustion engine elements are commonly used to protect against excessive wear. One of them, frequently applied on sleeve surface of motorcycle engines, is made of Nicasil alloy. As prese...