Comparison friction and wear properties of overbased calcium sulfonate complex grease and polyurea grease

Yong Jian Gao, Xiang Yu Ge, Zhen Zhong Wen, Yan Qiu Xia

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)

Abstract

The friction and wear properties of the overbased calcium sulfonate complex grease and polyurea grease were evaluated using an Optimol SRV reciprocating friction and wear tester under the boundary lubrication conditions. The morphologies of the worn surfaces of the AISI 52100 steel discs were observed using a scanning electron microscope (SEM). In addition, the elemental compositions and chemical states of several typical elements on the worn surfaces of the AISI 52100 steel discs were examined by means of X-ray photoelectron spectroscopy (XPS). The results show that the overbased calcium sulfonate complex greases and polyurea grease have stable friction coefficients as low as 0.10-0.11. The calcium sulfonate complex grease has better wear resistance properties than polyurea grease, polyurea grease has better reducing friction properties than calcium sulfonate complex grease, According to the XPS analyses, it is considered that the formation of tribochemical films led to lower friction coefficient and high wear resistance.

Original languageEnglish
Title of host publicationResources and Sustainable Development
PublisherTrans Tech Publications Ltd.
Pages2484-2487
Number of pages4
ISBN (Print)9783037857441
DOIs
Publication statusPublished - 2013
Externally publishedYes
Event2013 2nd International Conference on Energy and Environmental Protection, ICEEP 2013 - Guilin, China
Duration: 19 Apr 201321 Apr 2013

Publication series

NameAdvanced Materials Research
Volume734-737
ISSN (Print)1022-6680

Conference

Conference2013 2nd International Conference on Energy and Environmental Protection, ICEEP 2013
Country/TerritoryChina
CityGuilin
Period19/04/1321/04/13

Keywords

  • Calcium sulfonate complex grease
  • Friction and wear
  • Polyurea grease
  • SEM

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