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Parametric study on the dry sliding wear behaviour of AA6082–T6/TiB2 in situ composites using response surface methodology

  • Gurpreet SinghEmail author
  • Sammy Lap-Ip Chan
  • Neeraj Sharma
Technical Paper

Abstract

Present work deals with the parametric study of dry sliding wear behaviour of TiB2-reinforced aluminium matrix composites (AMCs). Aluminium 6082-T6 alloy specimens reinforced with 0, 3, 6, 9 and 12 wt% of TiB2 particles were fabricated by the in situ reaction of K2TiF6 and KBF4 in heated liquid aluminium. Experiments were conducted to study the wear behaviour of AA6082–T6/TiB2 composites using pin-on-disc apparatus at room temperature. Weight percentage of reinforcement, sliding speed, load and sliding distance were the process parameters studied in the present investigation, with five different levels of each parameter. The parametric optimization was done employing response surface methodology. The results confirmed that an increase in the amount of reinforcement and sliding speed decreased the wear loss, and an increase in load and sliding distance increased the wear in TiB2-reinforced AMCs. However, the relative significance of these parameters on the sliding wear resistance of the AMCs was very much different. Analysis of variance showed that the sliding distance was the most dominating factor with 65.28% to influence the wear loss in the fabricated composites; it was preceded by the sliding speed with 14.78%, load (9.39%) and reinforcement percentage (3.86%), respectively. The present model was validated by conducting confirmation tests. Thus in this work an accurate wear model has been developed, and it can be used as a predictive tool for wear applications.

Keywords

AA6082–T6/TiB2 composites Sliding wear Response surface methodology Predictive tool 

Notes

Acknowledgements

The authors wish to express their gratitude to the authorities of Mechanical Engineering Department, Thapar University, Patiala, for providing the experimental facilities to conduct the work for this study.

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Copyright information

© The Brazilian Society of Mechanical Sciences and Engineering 2018

Authors and Affiliations

  • Gurpreet Singh
    • 1
    Email author
  • Sammy Lap-Ip Chan
    • 2
  • Neeraj Sharma
    • 3
  1. 1.AIT, Amity UniversityNoidaIndia
  2. 2.School of Materials Science and EngineeringUniversity of New South WalesSydneyAustralia
  3. 3.Department of Mechanical EngineeringMaharishi Markandeshwar (Deemed to be University), MullanaAmbalaIndia

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