eprintid: 15117
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/01/51/17
datestamp: 2023-11-10 03:29:44
lastmod: 2023-11-10 03:29:44
status_changed: 2023-11-10 01:58:41
type: article
metadata_visibility: show
creators_name: Patil, N.A.
creators_name: Pedapati, S.R.
creators_name: Mamat, O.
creators_name: Lubis, A.M.H.S.
title: Morphological characterization, statistical modeling and wear behavior of AA7075-Titanium Carbide-Graphite surface composites via Friction stir processing
ispublished: pub
keywords: Aluminum; Dispersions; Friction; Friction stir welding; Graphitization; Metallic matrix composites; Nanoparticles; Titanium carbide; Wear of materials, Aluminium surface; Aluminum surface composite; Friction stir processing; Interaction effect; Rotational speed; Surface composites; TiC particles; Traverse speed; Wear behaviors; Wear-rate, Graphite
note: cited By 19
abstract: In this study, the wear behavior of AA7075-T6 has been significantly improved by encapsulating TiC and graphite nanoparticles using FSP. The wear tracks and debris SEM EDX analysis confirms that the prominent wear mechanism changed from fretting fatigue to abrasion due to the presence of TiC/Gr mechanically mixed layer at contacting surfaces. The tool rotational speed-w rpm (39), TiC/Gr vol (14), the interaction effect of tool rotational speed and TiC/Gr hybrid ratio HR (17) and interaction effect of tool traverse speed v-mm/min and vol (23) observed to be most influential factors. The lowest wear rate was observed for the Run 19 surface composite produced at lower rotational, traverse speeds and with higher volume percentage TiC/Gr with the weight ratio of 60:40. The ranges of parameters that hold suitable for retaining the inherent precipitates along with the dispersion of graphitized-TiC particles have been traced successfully, and the prediction equation of wear rate is defined. Subsequently, it has been validated through observed confirmation results. The predicted and experimental values showed a good association. The inherent isomorphous precipitates dissolution due to excessive intense plasticization has been confirmed through FESEM analysis. The interfacial bonding of TiC/graphite nanoparticles with the base alloy matrix was found to be the necessary condition in controlling the wear rate. The composites processed at lower tool stirring parameters have resulted in good wear properties since it retained inherent precipitates along with the dispersion of graphitized-TiC particles. The wear rate was found to be a function of graphite content inside composites. © 2021 The Author(s)
date: 2021
publisher: Elsevier Editora Ltda
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85107939356&doi=10.1016%2fj.jmrt.2021.02.054&partnerID=40&md5=989585e5d97819d10c77fff160071821
id_number: 10.1016/j.jmrt.2021.02.054
full_text_status: none
publication: Journal of Materials Research and Technology
volume: 11
pagerange: 2160-2180
refereed: TRUE
issn: 22387854
citation:   Patil, N.A. and Pedapati, S.R. and Mamat, O. and Lubis, A.M.H.S.  (2021) Morphological characterization, statistical modeling and wear behavior of AA7075-Titanium Carbide-Graphite surface composites via Friction stir processing.  Journal of Materials Research and Technology, 11.  pp. 2160-2180.  ISSN 22387854