The effect of sliding speed on the wear of steel-tool steel pairs

Okonkwo, Paul C., Kelly, Georgina, Rolfe, Bernard F. and Pereira, Michael P. 2016, The effect of sliding speed on the wear of steel-tool steel pairs, Tribology international, vol. 97, pp. 218-227, doi: 10.1016/j.triboint.2016.01.030.

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Title The effect of sliding speed on the wear of steel-tool steel pairs
Author(s) Okonkwo, Paul C.
Kelly, Georgina
Rolfe, Bernard F.ORCID iD for Rolfe, Bernard F.
Pereira, Michael P.ORCID iD for Pereira, Michael P.
Journal name Tribology international
Volume number 97
Start page 218
End page 227
Total pages 10
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2016-05
ISSN 0301-679X
Keyword(s) adhesive wear
abrasive wear
frictional heating
metal forming
Summary This study examines the effect of sliding speed and surface temperature on the wear behavior of an unlubricated mild steel-tool steel contact pair using the pin-on-disc test. The operating conditions and contact pair are of interest to the automotive sheet metal stamping industry and the broader metal forming community, where high contact pressures and moderate forming speeds can result in significant frictional heating and thus affect tool life. It will be shown that, while adhesive wear is dominant at the tool steel surface for all sliding speeds examined, the adhesive wear rate is very sensitive to sliding speed during slow speed conditions but relatively insensitive to sliding speed during higher speed conditions. These higher sliding speeds result in high frictional heating, however, the effect of increasing bulk temperature results in a transition from adhesive wear to material removal-dominated mechanisms. It is concluded that there is a distinct difference in the wear response for comparable surface temperature and bulk temperature conditions, at the low to moderate sliding speeds and temperatures examined in this study. The SEM and profilometry analysis show that the technique of increasing sliding speed to replicate bulk temperature conditions (or vice versa), may not result in equivalent wear rates and mechanisms.
Language eng
DOI 10.1016/j.triboint.2016.01.030
Field of Research 091309 Tribology
Socio Economic Objective 861205 Sheet Metal Products
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2016, Elsevier
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