TRIBOLOGICAL PROPERTIES OF BEARING STEEL AFTER HYBRID TREATMENT, COMBINED DIFFUSION CHROMIZING WITH THE PVD METHOD
Journal Title: Tribologia - Year 2018, Vol 282, Issue 6
Abstract
The objective of the research in this work was the modification of the structure of chromized carbide layers on a bearing steel surface by the combination of diffusion chromizing with subsequent treatment, chromium nitride deposition by the PVD method, carried out to improve their tribological properties. As a result, CrC+CrN type hybrid layers on the surface of bearing steel were obtained. For comparison, the properties of single chromized carbide layers produced on a bearing steel surface in diffusion chromizing by the pack powder method were tested. Investigations of the layers’ microstructures, phase composition, depth profiles of elements in the layer diffusion zone, and hardness were carried out. Tribological properties (linear wear) of the layers were performed by means of taper-three rolls tests. It has been proved, that the resistance to abrasive wear of the CrC+CrN type hybrid layers is almost two times higher than that for single CrC carbide layers.<br/><br/>
Authors and Affiliations
Bogdan BOGDAŃSKI, Ewa KASPRZYCKA
Keywords
Related Articles
- EP ID EP432511
- DOI 10.5604/01.3001.0012.8410
- Views 34
- Downloads 0
A TRIBOLOGICAL DEVICE FOR TESTS IN DIFFICULT EXPLOITATION CONDITIONS OF BEARING COMPONENTS WITH A MODIFIED SURFACE LAYER
This paper describes the construction of a tribological device in ring-on-shaft configuration. The constructed set-up is available for investigations of sliding bearing components for AIRBUS aircraft ventilation systems....
BADANIE WŁAŚCIWOŚCI ŻELIWA SFEROIDALNEGO STOPOWANEGO LASEROWO
Zwrócono uwagę na możliwości wykorzystania stopowania laserowego borem w odniesieniu do elementów wykonanych z żeliwa. Zaprezentowano wyniki badań pozwalające na wytworzenie ciągłej warstwy na powierzchni zewnętrznej tul...
THE INFLUENCE OF RESEARCH PARAMETERS ON FRICTION COEFFICIENTS FOR THE TEXTURING OF BOTH SLIDING SURFACES
To obtain the effect of texturing both sides of sliding surfaces, investigations were made to determine the impact of basic parameters like sliding speed and normal force on friction force. During the investigation, samp...
TRIBOLOGICAL PROPERTIES OF ACRYLONITRILE- -BUTADIENE RUBBER COMPOSITES CONTAINING CARBON NANOTUBES
The influence of carbon nanotubes addition on tribological properties of elastomer composites was studied. Butadiene-acrylonitrile rubber (NBR) composites containing 1-5 phr of multiwall carbon nanotubes (MWCNT) and cure...
IMPROVING THE WORKING CONDITIONS OF FRICTION BY USING OPERATION ADDITIVES TO LUBRICATING OIL
This paper presents the results of laboratory testing and verification on the actual technical facilities for lubricating oil CE/SF SAE 15W/40 and modified operational preparations with chemicals based on solid lubricant...