AN ELECTROCHEMICAL PROCESSING STRATEGY FOR IMPROVING TRIBOLOGICAL PERFORMANCE OF AISI 316 STAINLESS STEEL UNDER GREASE LUBRICATION

Jiaojuan Zou, Maolin Li, Naiming Lin (), Xiangyu Zhang, Lin Qin and Bin Tang
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Jiaojuan Zou: Research Institute of Surface Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China
Maolin Li: Nuclear and Radiation Safety Center, MEP, Beijing 100082, P. R. China
Naiming Lin: Research Institute of Surface Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China
Xiangyu Zhang: Research Institute of Surface Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China
Lin Qin: Research Institute of Surface Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China
Bin Tang: Research Institute of Surface Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China

Surface Review and Letters (SRL), 2014, vol. 21, issue 01, 1-7

Abstract: In order to improve the tribological performance of AISI 316 stainless steel (316 SS) under grease lubrication, electrochemical processing was conducted on it to obtain a rough (surface texturing-like) surface by making use of the high sensitivity of austenitic stainless steel to pitting corrosion inCl--rich environment. Numerous corrosion pits or micro-ditches acted as micro-reservoirs on the obtained surface. While the grease could offer consistent lubrication, and then improve the tribological performance of 316 SS. Tribological behaviors of raw 316 SS and the treated sample were measured using a reciprocating type tribometer sliding againstGCr15steel counterpart under dry and grease lubrication conditions. The results showed that the mass losses of the two samples were in the same order of magnitude, and the raw sample exhibited lower friction coefficient in dry sliding. When the tests were conducted under grease lubrication condition, the friction coefficients and mass losses of the treated sample were far lower than those of the raw 316 SS. The tribological performance of 316 SS under grease lubrication was drastically improved after electrochemical processing.

Keywords: Electrochemical processing; tribology; performance; stainless steel; grease lubrication (search for similar items in EconPapers)
Date: 2014
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DOI: 10.1142/S0218625X14500061

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