Citation

ELTAYEB, N and YOUSIF, B and YAP, T (2008) An investigation on worn surfaces of chopped glass fibre reinforced polyester through SEM observations. Tribology International, 41 (5). pp. 331-340. ISSN 0301679X

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Abstract

The wear mechanisms of chopped strand mat (CSM) glass fibre reinforced polyester (CGRP) composite subjected to dry sliding against smooth stainless steel counterface (R-a=0.06 mu m) were studied using a pin-on-disc technique. The effects of normal load (30 - 90 N), sliding velocity (2.8 - 3.9 m/s) and sliding distance (0.7 - 3.5 km) on friction and wear behaviour of the CGRP composite in two different CSM orientations (parallel and anti-parallel) were measured. The worn surfaces of the CGRP composite specimens for each specific test condition were examined using scanning electron microscopy (SEM). Sliding in P-orientation exhibited lower friction coefficient at lower load and higher speed compared to AP-orientation. Meanwhile, sliding in AP-orientation exhibited (15%) less friction coefficient at higher load compared to P-orientation. At higher range of all tested parameters, AP-orientation exhibited less mass loss (16%) compared to the P-orientation. Interestingly, SEM observations showed various wear mechanisms that predominated by abrasive nature. Damage of different features in the matrix and CSM glass fibre associated with higher values of load, speed, and sliding distance such as micro- and macro-cracks in the matrix, interface separation, fibre debonding and fracture, and different sizes of fractured fibres were evident. (c) 2007 Elsevier Ltd. All rights reserved.

Item Type:	Article
Subjects:	T Technology > T Technology (General) Q Science > QA Mathematics > QA71-90 Instruments and machines > QA75.5-76.95 Electronic computers. Computer science
Divisions:	Faculty of Engineering and Technology (FET)
Depositing User:	Ms Suzilawati Abu Samah
Date Deposited:	14 Sep 2011 06:08
Last Modified:	13 Feb 2014 07:45
URII:	http://shdl.mmu.edu.my/id/eprint/2743

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