The Effect of Particle Concentration and Magnetic Field on Tribological Behavior of Magneto-Rheological Fluid

Abstract:

In this paper, the effect of particle concentration and magnetic field on the tribological behavior of magneto-rheological (MR) fluid is investigated using a pin-on-disc tribometer. The wear loss and friction coefficient are measured to study the friction and wear properties of MR fluid. The morphology of the worn pin is also observed by scanning electron microscope (SEM) in order to analyze the wear mechanism. The results obtained in this work show that the wear loss and friction coefficient decrease with increasing particle concentration under the magnetic field. Furthermore, it is demonstrated that the magnetic field has a significant effect on improving tribological properties of MR fluid, especially the one with high particle concentration. The predominant wear mechanism of the MR fluid has been identified as abrasive wear.

• Periodical: Advanced Materials Research (Volumes 314-316)
• Pages: 58-61
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.314-316.58
• Online since: August 2011
• Authors: Wan Li Song, Chul Hee Lee, Seung Bok Choi, Myeong Woo Cho
• Keywords: Magnetic Field, Magnetorheological Fluid (MRF), Particle Concentration, Tribology, Wear

References

[1] A.G. Olabi and A. Grunwald: Mater. Design Vol. 28 (2007), pp.2658-2664

[2] P.L. Wong, W.A. Bullough, C. Feng and S. Lingard: Wear Vol. 247 (2001), pp.33-40

[3] J.W. Sohn, S.B. Choi, C.H. Lee and M.W. Cho: Adv. Mater. Res. Vol. 79-82 (2009), pp.83-86

[4] W.L. Song, S.B. Choi, J.Y. Choi and C.H. Lee: Tribol. T. DOI: 10.1080/10402004.2011.584365 (2010)