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The Damage Mechanisms under Different Fretting Modes of Bonded Molybdenum Disulfide Coating

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Abstract:

Fretting wear tests of bonded MoS2 coating under radial and composite fretting mode have been carried out on a new fretting rig. The maximum applied load was respectively 200N, 400N and 800N with a constant loading speed of 12mm/min. Dynamic analyses in combination with microscopic examinations through SEM and XPS have been performed. Experimental results showed that such MoS2 coating exhibited an excellent radial fretting damage resistance, and its damage strongly depended upon the applied maximum loads and inclined angle under composite fretting condition. The fretting damage mechanism of MoS2 coating also discussed under different fretting modes. The XPS analysis revealed that the oxidation of MoS2 crystal was played an important role in damage. The fretting wear of MoS2 coating was mainly represented by the mechanism of delamination and oxidation wear under composite fretting conditions.

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Periodical:

Materials Science Forum (Volumes 475-479)

Pages:

1545-1550

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.475-479.1545

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Cite this paper

Online since:

January 2005

Authors:

Min Hao Zhu, Zhong Rong Zhou

Keywords:

Composite Fretting, Fretting Wear, MoS2 Bonded Solid Lubricant Coating, Radial Fretting

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© 2005 Trans Tech Publications Ltd. All Rights Reserved

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References

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