Tribological Performances of FeS Solid Lubrication Duplex Layer under Liquid Paraffin Oil with n-Al₂O₃ Lubrication

Abstract:

FeS solid lubrication duplex layer was prepared on the surface of 45 steel by ion nitrocarburizing-ion sulphurizing process. The sulphide grains and holes all in micron and nano scale and distributing equably in the sulphide surface layer with 10 μm thickness of the duplex layer. The duplex layer is composed of FeS, FeS₂ and Fe₃N. Under liquid paraffin oil with 0.1wt% n-Al₂O₃ lubrication, the synergistic effect between n-Al₂O₃ and the duplex layer is produced, and the chemical reaction films including sulphide, sulphate and nitride is formed, which makes the friction factor of the duplex layer keep being the lowest and about 0.07, and the volume loss is reduced by 97% than that of the plain surface(rubbing for 10 min), and reduced by 92% and 21% than that of the sulphurized surface and the nitrocarburized surface, respectively.

• Periodical: Advanced Materials Research (Volumes 291-294)
• Pages: 1526-1531
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.291-294.1526
• Online since: July 2011
• Authors: C.H. Hu, Jian Huang, Hai Shan Zhao, Shi Ning Ma, Yu Lin Qiao
• Keywords: Chemical Reaction Film, FeS Solid Lubrication Duplex Layer, Friction-Reduction, N-Al₂O₃, Wear Resistance

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