uu.seUppsala University Publications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Grease lubricated fretting of silver coated copper electrical contacts
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Materials Sciences.ORCID iD: 0000-0002-4301-8038
ABB Corporate Research, Västerås, Sweden.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Materials Sciences.
2017 (English)In: Wear, ISSN 0043-1648, E-ISSN 1873-2577, Vol. 376, 634-642 p.Article in journal (Refereed) Published
Abstract [en]

Fretting of silver coated electrical contacts has been studied in a crossed cylinder contact model setup at varying displacement amplitude. The contacts have been tested dry (unlubricated) and lubricated with lithium complex (LiX) and polypropylene (PP) thickened greases. The same polyalphaolefin (PAO) base oil blend was used, hence the thickener is the only difference between the greases. At low displacement amplitude no large difference between dry and lubricated conditions was found. Contact welding occurs for all contacts, also the lubricated. The grease is ejected from the contact area after only a few fretting cycles and the contact welds. A positive effect of grease lubrication on friction and wear is primarily seen at high vibration amplitude, where gross slip is the prevailing fretting regime. For the LiX grease lubricated contacts, fretting at intermediate displacement amplitudes show to be the most critical and the wear marks show much surface damage. Here, the PP grease showed better lubricating effect than the LiX grease.

Place, publisher, year, edition, pages
2017. Vol. 376, 634-642 p.
Keyword [en]
Fretting, Grease lubrication, Electrical contacts, Lithium complex (LiX) grease, Polypropylene (PP) grease
National Category
Materials Engineering
Research subject
Engineering Science with specialization in Tribo Materials
Identifiers
URN: urn:nbn:se:uu:diva-329130DOI: 10.1016/j.wear.2017.02.022ISI: 000403904000074OAI: oai:DiVA.org:uu-329130DiVA: diva2:1148268
Conference
21st International Conference on Wear of Materials (WOM), MAR 26-30, 2017, Long Beach, CA
Funder
VINNOVA, 2015-01467
Available from: 2017-10-10 Created: 2017-10-10 Last updated: 2017-10-10Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Authority records BETA

Larsson, ElinKassman Rudolphi, Åsa

Search in DiVA

By author/editor
Larsson, ElinKassman Rudolphi, Åsa
By organisation
Applied Materials Sciences
In the same journal
Wear
Materials Engineering

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 49 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf