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Slurry Pump Impeller Wear: Testing
Erosion wear is a process that accompanies the facility for hydraulic transportation of solids. Since the pump is one of the vital parts of this facility, the working life of the pump is conditioned b...

Study of Wear Self-Repair of Steel 100Cr6 Rubbed With Lubricants Modified With Schiff Base Copper Complex

J. Tribol.  -- July 2010 --  Volume 132,  Issue 3, 034504 (5 pages)
doi:10.1115/1.4001963

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Author(s):
Xinlei Gao
School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, Hubei Province 430023, P. R. China

Li Wu
Wuhan Research Institute of Materials Protection, Wuhan, Hubei Province 430030, P. R. China; School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan, Hubei Province 430074, P. R. China

Jian Li and Wanzhen Gao
Wuhan Research Institute of Materials Protection, Wuhan, Hubei Province 430030, P. R. China
Preparation of a Cu (II) chelate of bis(salicylaldehyde)ethylenediamine was carried out directly in epoxidized rape oil via a water/oil microemulsion reactor. Detailed characterization of the friction of boundary lubrication produced by epoxidized rape oil with and without the Cu (II) chelate of bis(salicylaldehyde)ethylenediamine was performed in reciprocating sliding tests with a microtribometer. In the presence of a modification of the epoxidized rape oil with 2 wt % of the Cu (II) chelate of bis(salicylaldehyde)ethylenediamine, the friction coefficient decreased by 15%. The Cu (II) chelate of bis(salicylaldehyde)ethylenediamine served as the additive in the epoxidized rape oil and self-assembled on the surface of 100Cr6 steel. The self-assembled monolayer was detected with atomic force microscopy and scanning electron microscopy, and characterized with cyclic voltammetry. It was verified by energy dispersive spectroscopy and X-ray photoelectron spectroscopy analyses that steel/steel rubbing pairs underwent a selective transfer of organic substance and copper, as a result of lubrication with the modified lubricant. It indicated that the modification of epoxidized rape oil with Cu (II) chelate of bis(salicylaldehyde)ethylenediamine led to wear self-repair on the steel surface, with selective transfer of a film of organic substance and copper metal.

©2010 American Society of Mechanical Engineers

History: Received 30 November 2009; revised 3 June 2010; published 21 July 2010
doi: http://dx.doi.org/10.1115/1.4001963

KEYWORDS and PACS

Keywords
PACS
  • 81.40.Pq
    Friction, lubrication, and wear
  • 62.20.Qp
    Friction, tribology and hardness
  • 82.80.Ej
    X-ray, Mössbauer, and other γ-ray spectroscopic chemical analysis methods
  • 82.80.Pv
    Electron spectroscopy (chemical analysis)
  • 82.80.Fk
    Electrochemical analytical methods
  • YEAR: 2010

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PUBLICATION DATA

Doc Type:
Technical Brief, Technical Note, Brief Note
Coden:
JOTRE9
ISSN:
0742-4787 (print)   1528-8897 (online)
Publisher:
AIP is a member of CrossRef ASME

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