Paper Title:
Elevated Temperature Wear of Submicron Al2O3 Reinforced 6061 Aluminum Composite
  Abstract

The effects of load and temperature on wear behavior of 6061 Aluminum alloy matrix composite reinforced with 20% Al2O3 (submicron) particulates against AISI 4041 steel disc were studied at elevated temperatures ranging from 25oC to 300oC. Mild and severe wear regions separated by a transition region were observed at all temperatures with a difference of two orders of magnitude between mild and severe wear. The critical loads observed at 100oC, 200oC and 300oC were 40 N (2 MPa), 30 N (1.53 MPa) and 15 N (0.76 MPa) respectively indicating that wear resistance of the composite decreases with increase in temperature. Scanning electron microscopy revealed that wear was accompanied by extensive thermal softening of the matrix, in addition to particulate fracture due to high shear strain generated from the contacts and material transfer to the counterface. The wear rates were reduced in the mild wear regime due to oxidation of the iron counterface and deposition of oxides on the contact surfaces evident by EDS analysis.

  Info
Periodical
Advanced Materials Research (Volumes 83-86)
Edited by
M. S. J. Hashmi, B. S. Yilbas and S. Naher
Pages
1288-1296
DOI
10.4028/www.scientific.net/AMR.83-86.1288
Citation
A.M. Al-Qutub, I. Allam, A. Al Hamed, A. Elaiche, "Elevated Temperature Wear of Submicron Al2O3 Reinforced 6061 Aluminum Composite", Advanced Materials Research, Vols. 83-86, pp. 1288-1296, 2010
Online since
December 2009
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Rimma Lapovok
Abstract:Equal Channel Angular Extrusion (ECAE) has become a very popular tool for studying the evolution of microstructure and properties under...
37
Authors: Hyo Jin Kim, Do Won Seo, Jae Kyoo Lim, Toru Fujii
417
Authors: Jin Feng Bai, Shi Yong Wu, Shao Feng Li, Wei Chen, Yan Li
Abstract:A novel tube-form asymmetrical carbon membrane based on phenol-formaldehyde resin (PFR) is proposed in this paper. The membrane is composed...
457
Authors: Imre Kientzl, János Dobránszky
Abstract:In this study Nextel 440 type alumina fibre reinforced aluminium matrix composite wires were investigated. Composite wires produced using...
105
Authors: Szilvia Eosoly, Stefan Lohfeld, Dermot Brabazon
Abstract:Selective laser sintering (SLS) has the potential to fabricate bioresorbable polymer / ceramic composite scaffolds with pre-designed external...
659