Atom-probe tomography of tribological boundary films resulting from boron-based oil additives

Yoon Jun Kim, Sung Il Baik, Leonardo Bertolucci-Coelho, Luca Mazzaferro, Giovanni Ramirez, Ali Erdermir, David N. Seidman*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Correlative characterization using atom-probe tomography (APT) and transmission electron microscopy (TEM) was performed on a tribofilm formed during sliding frictional testing with a fully formulated engine oil, which also contains a boron-based additive. The tribofilm formed is ∼15 nm thick and consists of oxides of iron and compounds of B, Ca, P, and S, which are present in the additive. This study provides strong evidence for boron being embedded in the tribofilm, which effectively reduces friction and wear losses.

Original languageEnglish (US)
Pages (from-to)64-67
Number of pages4
JournalScripta Materialia
Volume111
DOIs
StatePublished - Jan 15 2016

Keywords

  • Atom-probe tomography
  • Boron oxide
  • Lubricant
  • Transmission electron microscopy
  • Tribofilm

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys

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