Detail publikace
Vliv tenkých mezných filmů na povrchové nerovnosti mazaných kontaktů
KŘUPKA, I. HARTL, M.
Český název
Vliv tenkých mezných filmů na povrchové nerovnosti mazaných kontaktů
Anglický název
The influence of Thin Boundary Films on Real Surface Roughness in Thin Film, Mixed EHD Contact
Typ
článek v časopise - ostatní, Jost
Jazyk
en
Originální abstrakt
The behaviour of thin viscous boundary films in the rough surface rolling-sliding point contact operated under thin film lubrication conditions have been observed by thin film colorimetric interferometry. Changes in film thickness distribution within the lubricated contact between steel ball and glass disc were studies with both mineral base oil and mineral oil formulated with non-functionalized polyalkylmethacrylate (PAMA). Recent studies by other researchers showed that this polymer containing viscosity index improver exhibits some friction-reducing capabilities even though it forms only very thin boundary films on rubbing surfaces. Results obtained in the current study proved that thin viscous boundary films formed on rubbing surfaces can reduce asperities interactions of rubbing surfaces under very thin film conditions. Even though these boundary films do not separate rubbing surfaces completely they still can provide some protection of contacting bodies against excessive friction and wear.
Český abstrakt
Článek přináší původní výsledky výzkumu vlivu tenkých mezných filmů na chování mazaných kontaktů provozovaných za podmínek smíšeného mazání.
Anglický abstrakt
The behaviour of thin viscous boundary films in the rough surface rolling-sliding point contact operated under thin film lubrication conditions have been observed by thin film colorimetric interferometry. Changes in film thickness distribution within the lubricated contact between steel ball and glass disc were studies with both mineral base oil and mineral oil formulated with non-functionalized polyalkylmethacrylate (PAMA). Recent studies by other researchers showed that this polymer containing viscosity index improver exhibits some friction-reducing capabilities even though it forms only very thin boundary films on rubbing surfaces. Results obtained in the current study proved that thin viscous boundary films formed on rubbing surfaces can reduce asperities interactions of rubbing surfaces under very thin film conditions. Even though these boundary films do not separate rubbing surfaces completely they still can provide some protection of contacting bodies against excessive friction and wear.
Klíčová slova česky
Smíšené mazání; tloušťka mazacího filmu; mezné filmy
Klíčová slova anglicky
Mixed lubrication; Boundary films; Thickness; Polyalkylmethacrylate
Rok RIV
2007
Vydáno
01.10.2007
Nakladatel
Elsevier
Místo
Velká Británie
ISSN
0301-679X
Časopis
Tribology International
Ročník
40
Číslo
11
Strany od–do
1553–1560
Počet stran
8
BIBTEX
@article{BUT43777,
author="Ivan {Křupka} and Martin {Hartl},
title="The influence of Thin Boundary Films on Real Surface Roughness in Thin Film, Mixed EHD Contact",
journal="Tribology International",
year="2007",
volume="40",
number="11",
month="October",
pages="1553--1560",
publisher="Elsevier",
address="Velká Británie",
issn="0301-679X"
}