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 38
- Downloads 0
TRIBOLOGICAL PROPERTIES OF BEARING STEEL AFTER HYBRID TREATMENT, COMBINED DIFFUSION CHROMIZING WITH THE PVD METHOD
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 nitri...
THE INFLUENCE OF MODIFIED ADDITIVE ON USING PROPERTIES OF ECOLOGICAL GREASES
In this article, the investigation result on the influence of additive silica and Teflon on lubricating properties of selected lubricated compositions are presented. For modification of greases made on silica-mineral and...
ESTIMATION OF THE EFFICIENCY OF BREAKING SYSTEMS FOR VEHICLES USING A TEST STAND
An attempt at an estimation of vehicles braking system efficiency, after corrosion exposure in humid conditions, is described. Based on brake test bench examinations, it is stated that halting a vehicle with mass higher...
WPŁYW STRUKTURY GEOMETRYCZNEJ POWIERZCHNI TARCZ STALOWYCH NA TARCIE I ZUŻYCIE FRETTINGOWE
W badaniach zastosowano tester tribologiczny Optimol SRV5. Kulka ze stali 100Cr6 o twardości 60 HRC kontaktowała się z tarczą o średnicy 10 mm wykonaną ze stali 42CrMo4 o twardości 47 HRC w warunkach frettingu. Temperatu...
Klasyfikowanie jakości samochodowych olejów przekładniowych metodą szokowego zacierania testowej przekładni zębatej