Hostname: page-component-78c5997874-lj6df Total loading time: 0 Render date: 2024-11-17T19:36:02.009Z Has data issue: false hasContentIssue false
  • English
  • Français

Grooves in scratch testing

Published online by Cambridge University Press:  31 January 2011

Witold Brostow ,
Wunpen Chonkaew ,
Lev Rapoport ,
Yakov Soifer ,
Armen Verdyan  and
Yakov Soifer
Witold Brostow*
Affiliation:
Laboratory of Advanced Polymers & Optimized Materials (LAPOM), Department of Materials Science and Engineering, College of Engineering, University of North Texas, Denton, Texas 76203-5310
Wunpen Chonkaew
Affiliation:
Laboratory of Advanced Polymers & Optimized Materials (LAPOM), Department of Materials Science and Engineering, College of Engineering, University of North Texas, Denton, Texas 76203-5310
Lev Rapoport
Affiliation:
Department of Sciences, Holon Institute of Technology, 58102 Holon, Israel
Yakov Soifer
Affiliation:
Department of Sciences, Holon Institute of Technology, 58102 Holon, Israel
Armen Verdyan
Affiliation:
Department of Sciences, Holon Institute of Technology, 58102 Holon, Israel
Yakov Soifer
Affiliation:
Department of Sciences, Holon Institute of Technology, 58102 Holon, Israel; and Department of Physical Electronics, Faculty of Engineering, Tel Aviv University, 69978 Tel Aviv, Israel
*
a)Address all correspondence to this author.e-mail: brostow@unt.edu
Get access

Abstract

For a number of polymers with a variety of chemical structures and different properties, we have performed scratch-resistance tests and investigated the profiles of the grooves formed using a profilometer. Three main kinds of material response are seen: plowing; cutting; and densification. The cross-sectional areas of the grooves include the groove and side top-ridge areas. The latter are smaller than the former, an indication of densification at the bottom and the sides of the groove; the effect can be connected to molecular dynamics simulations of scratch testing. The sum of the groove and top-ridge areas is the highest for Teflon, thus providing another measure of its poor scratch resistance. The Vickers hardness of the polymers was also determined. An approximate relationship exists between the hardness and the groove area. An unequivocal relationship between the hardness and the total cross-sectional area of the material displaced by the indenter is found. The resulting curve can be represented by an exponential decay function.

Keywords

DensificationHardnessTribology
Type
Articles
Information
Journal of Materials Research , Volume 22 , Issue 9 , September 2007 , pp. 2483 - 2487
Copyright
Copyright © Materials Research Society 2007

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1Rabinowicz, E.Friction and Wear of Materials 2 ed.Wiley New York 1995Google Scholar
2Bermúdez, M.D., Brostow, W., Carrión-Vilches, F.J., Cervantes, J.J.Pietkiewicz, D.: Friction and multiple scratch behavior of polymer + monomer liquid crystal systems. Polymer 46, 347 2005Google Scholar
3Bhushan, B.: Introduction to Tribology Wiley New York 2002 Chap. 7,Google Scholar
4Myshkin, N.K., Petrokovets, M.I.Kovalev, A.V.: Tribology of polymers: Adhesion, friction, wear, and mass-transfer. Tribol. Int. 38, 910 2005Google Scholar
5Brostow, W., Deborde, J-L., Jaklewicz, M.Olszynski, P.: Tribology with emphasis on polymers: Friction, scratch resistance and wear. J. Mater. Ed. 25, 119 2003Google Scholar
6Brostow, W., Keselman, M., Mironi-Harpaz, I., Narkis, M.Peirce, R.: Effects of carbon black on tribology of blends of poly(vinylidene fluoride) with irradiated and non-irradiated ultrahigh-molecular-weight polyethylene. Polymer 46, 5058 2005CrossRefGoogle Scholar
7Briscoe, B.J., Pelillo, E., Sinha, S.K.Evans, P.D.: Scratching maps for polymers. Wear 200, 137 1996CrossRefGoogle Scholar
8Maeda, K., Bismarck, A.Briscoe, B.J.: Mechanisms of scratching frictions and damage maps for rubber compounds. Wear 259, 651 2005CrossRefGoogle Scholar
9Brostow, W., Bujard, B., Cassidy, P.E., Hagg, H.E.Montemartini, P.: Effects of fluoropolymer addition to an epoxy on scratch depth and recovery. Mater. Res. Innovat. 6, 7 2002Google Scholar
10de Isla, A. la, Brostow, W., Bujard, B., Estevez, M., Rodriguez, J.R., Vargas, S.Castano, V.M.: Nanohybrid scratch resistant coatings for teeth and bone viscoelasticity manifested in tribology. Mater. Res. Innovat. 7, 110 2003CrossRefGoogle Scholar
11Brostow, W., Darmarla, G., Howe, J.Pietkiewicz, D. Determination of wear of surfaces by scratch testing. e-Polymers 025,200Google Scholar
12Brostow, W.Jaklewicz, M.: Friction and scratch resistance of polymer liquid crystals: Effects of magnetic field orientation. J. Mater. Res. 19, 1038 2004CrossRefGoogle Scholar
13Bermúdez, M.D., Brostow, W., Carrion-Vilches, F.J., Cervantes, J.J.Pietkiewicz, D.: Wear of thermoplastics determined by multiple scratching. e-Polymers, 001 (2005)Google Scholar
14Bermúdez, M.D., Brostow, W., Carrion-Vilches, F.J., Cervantes, J.J., Damarla, G.Perez, J.M.: Scratch velocity and wear resistance. e-Polymers, 003 (2005)Google Scholar
15Brostow, W., Hinze, J.A.Simoes, R.: Tribological behavior of polymers simulated by molecular dynamics. J. Mater. Res. 19, 851 2004CrossRefGoogle Scholar
16Brostow, W., Lobland, H.E. HaggNarkis, M.: Sliding wear, viscoelasticity, and brittleness of polymers. J. Mater. Res. 21, 2422 2006CrossRefGoogle Scholar
17Yoshida, S., Sangleboef, J.C.Rouxel, T.: Quantitative evaluation of indentation-induced densification in glass. J. Mater. Res. 20, 3404 2005Google Scholar
18Bhushan, B., Davis, R.E.Kolar, H.R.: Metallurgical re-examination of wear modes: II. Adhesive and abrasive. Thin Solid Films 123, 113 1985Google Scholar
19Brostow, W.Simoes, R.: Tribological and mechanical behavior of polymers simulated by molecular dynamics. J. Mater. Ed. 27, 19 2005Google Scholar