Publication detail

The influence of Thin Boundary Films on Real Surface Roughness in Thin Film, Mixed EHD Contact

KŘUPKA, I. HARTL, M.

Original Title

Type

journal article - other

Language

English

Original Abstract

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.

Keywords

Mixed lubrication; Boundary films; Thickness; Polyalkylmethacrylate

Authors

KŘUPKA, I.; HARTL, M.

RIV year

2007

Released

1. 10. 2007

Publisher

Elsevier

Location

Velká Británie

ISBN

0301-679X

Periodical

Tribology International

Year of study

Number

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1553

Pages to

1560

Pages count

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",
  pages="1553--1560",
  issn="0301-679X"
}