Tribocorrosion at metal-on-metal contacts: The contributing role of geometry and material combination

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Abstract

Employing a new analytical model, this paper studies the role of geometry and material combination in the tribocorrosion current of metal-on-metal contacts. Experiments were conducted on ZrO2-on-(Ti/CoCr) and (Ti/CoCr)-on-(Ti/CoCr) at 1–20 Hz in PBS. The contribution of the ball and disk in the tribocorrosion current was determined. The results showed that the disk was dominant in (CoCr/Ti)-on-CoCr at 1–10 Hz; whereas, at 20 Hz, the ball dominated the current. For Ti-on-Ti, the ball controlled the current at 1–20 Hz. In CoCr-on-Ti, the disk played the main role at 5–20 Hz while the ball dominated the interface at 1 Hz.

Original languageEnglish
Article number111047
Number of pages24
JournalCORROSION SCIENCE
Volume215
Early online date15 Feb 2023
DOIs
Publication statusPublished - 1 May 2023

Keywords

  • Geometry
  • Material combination
  • Metal-on-metal contacts
  • Tribocorrosion current

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