Journal of Central South University

, Volume 18, Issue 5, pp 1326–1333 | Cite as

Tribological characteristics and self-repairing effect of hydroxy-magnesium silicate on various surface roughness friction pairs

  • Bo Zhang (张博)
  • Bin-shi Xu (徐滨士)Email author
  • Yi Xu (许一)
  • Bao-sen Zhang (张保森)


Tribological characteristics and self-repairing effect of hydroxy-magnesium silicate (HMS) dispersed in lubricant oil on steel-to-steel friction pairs with various surface roughness were analyzed. The friction-reduction, anti-wear and self-repairing performance of various surface roughness friction pairs were examined by friction testing machine. An operation comparison was made between SJ10W-40 lubricant with and without HMS. The surface morphology and elementary composition of the grinding cracks were analyzed by scanning electron microscope (SEM) and energy dispersive spectrometer (EDS). The results show that the lubrication state changes from boundary lubrication into mixed lubrication after operation in lubricant with HMS. The friction-reduction, anti-wear and self-repairing performance of the friction pairs with various surface roughness are distinctly different. There is a repairing film whose material is different from substrate material on the grinding cracks. In addition, Si, Mg, O, Al and other elements are deposited on the repairing film which contains nanocrystals of these elements. And HMS self-repairing material possesses superior performance of friction-reduction, anti-wear and self-repairing effects.

Key words

hydroxy-magnesium silicate surface roughness friction wear self-repairing 


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Copyright information

© Central South University Press and Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Bo Zhang (张博)
    • 1
    • 2
  • Bin-shi Xu (徐滨士)
    • 1
    Email author
  • Yi Xu (许一)
    • 1
  • Bao-sen Zhang (张保森)
    • 1
    • 3
  1. 1.National Key Laboratory for RemanufacturingAcademy of Armored Forces EngineeringBeijingChina
  2. 2.The Chinese People’s Liberation Army 91278 TroopsDalianChina
  3. 3.School of Materials Science and EngineeringShanghai Jiaotong UniversityShanghaiChina

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