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The Wear & Friction Characteristics of Glass-Epoxy Composites for Coal Handling Parts in Thermal Power Plants


Affiliations
1 Department of Mechanical Engineering, BMS College of Engineering, Bangalore-560019, India
2 Materials Technology Division, Central Power Research Institute, Bangalore – 560 080, India
     

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The comparative performance of plain Glass-Epoxy (G-E) system with graphite(2.5wt.%) as filler has been reported for slide wear and friction behavior using pin-on-disc setup under varying loads and sliding velocities. This material is intended for use in coal handling systems. Besides slide wear and coefficient of friction (μ) measurements, examination of worn surface features by scanning electron microscope has been carried out to support the slide wear data. The slide wear data reveal that with increase in sliding speed, wear loss of both G-E composite and G-E plain system increase. Further it is seen that the G-E graphite filled system shows the least wear loss compared to plain G-E system. This trend is observed for all the three loads employed in this work. It is observed that the graphite bearing and plain G-E samples display a rise in the value of μ, when both load and sliding velocity are increased. The coefficient of friction of graphite G-E shows the least compared to plain G-E system irrespective of the load and the sliding velocity employed.


Keywords

Glass-epoxy (G-E), Pin-on-disc, Sliding wear, Graphite filler, SEM observations
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  • The Wear & Friction Characteristics of Glass-Epoxy Composites for Coal Handling Parts in Thermal Power Plants

Abstract Views: 275  |  PDF Views: 0

Authors

V. Bharathi
Department of Mechanical Engineering, BMS College of Engineering, Bangalore-560019, India
M. Ramachandra
Department of Mechanical Engineering, BMS College of Engineering, Bangalore-560019, India
S. Srinivasa
Department of Mechanical Engineering, BMS College of Engineering, Bangalore-560019, India
P. Sampathkumaran
Materials Technology Division, Central Power Research Institute, Bangalore – 560 080, India
S. Vynatheya
Materials Technology Division, Central Power Research Institute, Bangalore – 560 080, India
Seetharamu S.
Materials Technology Division, Central Power Research Institute, Bangalore – 560 080, India

Abstract


The comparative performance of plain Glass-Epoxy (G-E) system with graphite(2.5wt.%) as filler has been reported for slide wear and friction behavior using pin-on-disc setup under varying loads and sliding velocities. This material is intended for use in coal handling systems. Besides slide wear and coefficient of friction (μ) measurements, examination of worn surface features by scanning electron microscope has been carried out to support the slide wear data. The slide wear data reveal that with increase in sliding speed, wear loss of both G-E composite and G-E plain system increase. Further it is seen that the G-E graphite filled system shows the least wear loss compared to plain G-E system. This trend is observed for all the three loads employed in this work. It is observed that the graphite bearing and plain G-E samples display a rise in the value of μ, when both load and sliding velocity are increased. The coefficient of friction of graphite G-E shows the least compared to plain G-E system irrespective of the load and the sliding velocity employed.


Keywords


Glass-epoxy (G-E), Pin-on-disc, Sliding wear, Graphite filler, SEM observations



DOI: https://doi.org/10.33686/prj.v9i4.189551