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, Volume 11, Issue 2, pp 1047–1053 | Cite as

Friction and Wear Behavior of AA 7075- Si3N4 Composites Under Dry Conditions: Effect of Sliding Speed

  • Mir Irfan Ul HaqEmail author
  • Ankush Anand
Original Paper

Abstract

In this paper, the effect of sliding speed on tribological properties of AA7075-Si3N4 composites has been investigated. The tribological testing was carried on a unidirectional pin on disc tribometer at three different sliding speeds (1 m/s, 4 m/s, and 7 m/s) at a constant load of 30 N. The wear loss increased with an increase in speed and coefficient of friction decreased with an increase in speed. The morphologies of the worn samples were investigated by SEM and it was observed that in case of unreinforced alloy and lower concentrations (2 wt% and 4 wt%) delamination was the dominant wear mechanism and, in case of higher Si3N4content (8 wt%) abrasive wear was the dominant wear mechanism. Heavy plastic deformation and deeper grooves were observed in case of higher speeds. Mechanically Mixed Layer (MML) formation was also confirmed by EDS. The developed material could serve various high speed sliding wear applications in automotive sector.

Keywords

Alumunium Wear Friction Composite 

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Notes

Acknowledgements

The authors would like to thank the staff of Central Workshop, Shri Mata Vaishno Devi University who extended their help during the course of sample fabrication. The help rendered by SAI Labs Patiala, Punjab (India) for the SEM and EDS is also acknowledged.

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Copyright information

© Springer Nature B.V. 2018

Authors and Affiliations

  1. 1.School of Mechanical EngineeringShri Mata Vaishno Devi UniversityKatraIndia

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