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"
}