Please use this identifier to cite or link to this item:
Title: Effects of normal load on single-pass scratching of polymer surfaces
Authors: Sinha, S.K. 
Lim, D.B.J.
Keywords: Polymers
Scratch hardness
Issue Date: 7-Apr-2006
Citation: Sinha, S.K., Lim, D.B.J. (2006-04-07). Effects of normal load on single-pass scratching of polymer surfaces. Wear 260 (7-8) : 751-765. ScholarBank@NUS Repository.
Abstract: The effects of normal load and the resulting scratch depth on scratch force profile, scratch hardness and the mechanisms of deformation and material removal for a number of industrially important polymers are studied. Upon scratching by a 30° angled conical tip, the mean tangential or scratch force is found to be linearly related to the normal load at lower speed (0.2 mm s-1); however, at higher scratching speed (2.0 mm s-1), there is a decrease in the slope of the scratch force versus normal load curve for all polymers. The phenomenon of stick-slip is severe at higher normal loads and scratch depths for the polymers that show ductile nature. The scratch hardness for softer polymers tends to decrease with normal load, whereas for harder polymers, scratch hardness increases for intermediate loads and tends to decrease at very high loads. The deformation mechanism, to a large extent, is insensitive to the imposed normal load or the depth of scratching; however, material removal and debris formation process depends upon the scratch depth. © 2005 Elsevier B.V. All rights reserved.
Source Title: Wear
ISSN: 00431648
DOI: 10.1016/j.wear.2005.04.018
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.


checked on Sep 19, 2018


checked on Sep 10, 2018

Page view(s)

checked on Jun 14, 2018

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.