Tribological Properties of Cr Coating Lubricated with Different Lubricants

Abstract:

In this paper, Cr coatings were prepared onto AISI 1045 steel substrates using medium frequency magnetic sputtering process, and were analyzed using the X-ray diffraction (XRD). Five kinds of lubricants were chosen and evaluated as lubricants for Cr coatings/AISI 52100 steel contacts at room temperature. The tribological properties of the lubricants were investigated using a ball-on-disk type UMT reciprocating friction tester. The results indicated that the 1-ethyl-3-hexylimidazolium hexafluorophosphate (L-P206) ILs has excellent friction-reducing properties, the friction coefficient kept at a relatively stable value of 0.036, however pure liquid paraffin has the lowest wear volume value. The Cr coatings using different lubricants show different tribology properties. The worn surfaces of Cr coatings were observed and analyzed using a scanning electron microscope (SEM).

• Periodical: Advanced Materials Research (Volume 651)
• Pages: 470-473
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.651.470
• Online since: January 2013
• Authors: Xin Feng, Xiang Yu Ge
• Keywords: Cr Coatings, Friction, Lubricant, SEM, Wear, XPS Analysis

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