Publication Type Journal Article
Title Tribocorrosion of UNS S32750 in chloride medium: Effect of the load level
Authors Rodrigo Cesar C. Silva R. P. Nogueira Ivan N Bastos
Groups
Journal ELECTROCHIMICA ACTA
Year 2011
Month October
Volume 56
Number 24
Pages 8839-8845
Abstract The tribocorrosion of UNS S32750 sliding against zirconia counterpart in 3.5\% NaCl under 2-10 N load range was investigated. The samples were tested in a pin-on-disk tribometer and the main electrochemical techniques employed were potentiodynamic polarization and zero resistance ammeter. The coefficient of friction appeared to be independent of the load level but dependent of the applied potential. Several and complementary electrochemical results could be clearly divided in two distinct groups, below and above ca 7 N. This behavior indicates that the tribocorrosion regime changes as a result of the coupling between mechanical and electrochemical processes, which was interpreted as a change from an adhesive wear regime to an abrasive and corrosion one for higher load levels. (C) 2011 Elsevier Ltd. All rights reserved.
DOI http://dx.doi.org/10.1016/j.electacta.2011.07.077
ISBN
Publisher
Book Title
ISSN 0013-4686
EISSN
Conference Name
Bibtex ID ISI:000295601600102
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