Publication detail

Effect of surface texturing on rolling contact fatigue within mixed lubricated non-conformal rolling/sliding contacts

VRBKA, M. ŠAMÁNEK, O. ŠPERKA, P. NÁVRAT, T. KŘUPKA, I. HARTL, M.

Original Title

Effect of surface texturing on rolling contact fatigue within mixed lubricated non-conformal rolling/sliding contacts

Type

journal article in Web of Science

Language

English

Original Abstract

The rolling contact fatigue (RCF) life of highly loaded machine components is significantly influenced by the surface roughness features so that there is a continuous effort to design the topography of rubbing surfaces to enhance lubrication efficiency and prolong the operation of machine components. It can be suggested from the recent experimental results that lubricant emitted from shallow micro-dents could effectively lift off the real roughness features and reduce the asperities interactions within rolling/sliding mixed lubricated contacts. Thereby the additional supply of lubricant from surface features could help to reduce the risk of surface damage through the reduction of the interaction of rubbing surfaces during start-up or starvation. However, the introduction of such roughness features into the rubbing surfaces of highly loaded non-conformal contacts should consider not only the effects on lubrication film thickness but also on RCF. That is why this study is focused on the effects of surface texturing on RCF within non-conformal rolling/sliding contacts operated under mixed lubrication conditions. The principal task has been whether possible beneficial effect on film thickness is not accompanied by the reduction in RCF life. Textures with various sizes of micro-dents and their arrangement within the contacts have been considered. It has been found that results obtained with textured surfaces have exhibited no obvious reduction in RCF. Conversely, some increase in RCF using textured surfaces was observed that could be attributed to the positive contribution of micro-dents working as lubricant micro-reservoirs that reduce asperities interactions. Nevertheless, further experiments are necessary to confirm this possible beneficial contribution of surface texturing on RCF.

Keywords

Mixed lubrication; Surface texturing; Rolling contact fatigue

Authors

VRBKA, M.; ŠAMÁNEK, O.; ŠPERKA, P.; NÁVRAT, T.; KŘUPKA, I.; HARTL, M.

RIV year

2010

Released

1. 8. 2010

Publisher

Elsevier

Location

Nizozemí

ISBN

0301-679X

Periodical

Tribology International

Year of study

43

Number

8

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1457

Pages to

1465

Pages count

9

URL

http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V57-4YC80X0-1&_user=640830&_coverDate=08/31/2010&_rdoc=20&_fmt=high&_orig=browse&_origin=browse&_zone=rslt_list_item&_srch=doc-info(%23toc%235779%232010%23999569991%231972701%23FLA%23display%23Volume)&_cdi=5779&_sort=d&_docanchor=&view=c&_ct=31&_acct=C000032308&_version=1&_urlVersion=0&_userid=640830&md5=108c1419edf700018a5af208e5692b22&searchtype=a

BibTex

@article{BUT50107,
  author="Martin {Vrbka} and Otakar {Šamánek} and Petr {Šperka} and Tomáš {Návrat} and Ivan {Křupka} and Martin {Hartl}",
  title="Effect of surface texturing on rolling contact fatigue within mixed lubricated non-conformal rolling/sliding contacts",
  journal="Tribology International",
  year="2010",
  volume="43",
  number="8",
  pages="1457--1465",
  issn="0301-679X",
  url="http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V57-4YC80X0-1&_user=640830&_coverDate=08/31/2010&_rdoc=20&_fmt=high&_orig=browse&_origin=browse&_zone=rslt_list_item&_srch=doc-info(%23toc%235779%232010%23999569991%231972701%23FLA%23display%23Volume)&_cdi=5779&_sort=d&_docanchor=&view=c&_ct=31&_acct=C000032308&_version=1&_urlVersion=0&_userid=640830&md5=108c1419edf700018a5af208e5692b22&searchtype=a"
}