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research-article

Modelling of Abraded Surface Roughness and Wear Resistance of Aluminum Matrix Composites

[+] Author and Article Information
Santanu Sardar

Department of Mechanical Engineering P.O.- B. Garden, Howrah, West Bengal HOWRAH, WEST BENGAL 711103 India san_becme.rs2013@mech.iiests.ac.in

Susanta Kumar Pradhan

Department of Mechanical Engineering National Institute of Technology, Sikkim, Barfung Block Ravangla Sub-Division South Sikkim, Sikkim 737139 India susanta@nitsikkim.ac.in

Santanu Kumar Karmakar

Department of Mechanical Engineering, Indian Institute of Engineering Science and Technology, Shibpur Post- B.Garden. Howrah- 711103, WEST BENGAL 711103 India skk@mech.iiests.ac.in

Debdulal Das

Department of Metallurgy and Materials Engineering, Indian Institute of Engineering Science and Technology, Shibpur P.O.- B. Garden, Howrah, West Bengal HOWRAH, WEST BENGAL 711103 India debdulal_das@metal.iiests.ac.in

1Corresponding author.

Contributed by the Tribology Division of ASME for publication in the Journal of Tribology. Manuscript received February 11, 2019; final manuscript received April 25, 2019; published online xx xx, xxxx. Assoc. Editor: Yi Zhu.

ASME doi:10.1115/1.4043642 History: Received February 11, 2019; Accepted April 25, 2019

Abstract

Tribological characterizations of composites are primarily focused on evaluation of wear resistance (WR) and/or coefficient of friction, although roughness of abraded surfaces (RASs) is one of the key factors that also determines tribo-performances. This study aimed to model RAS in conjunction with WR considering experimental results of Al-matrix/alumina composites performed under two-body abrasion following central composite design method. Influences of different in-situ and ex-situ parameters on tribo-responses were analyzed and modelled using ANOVA, response surface method and multi-response optimization. The WR of the selected system was maximized at around 15 wt.% alumina at which RAS was also highest. Positive role of reinforcement on WR but its adverse effect on RAS was explained by micro-mechanisms of abrasion.

Copyright © 2019 by ASME
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