Atom-probe tomography of tribological boundary films resulting from boron-based oil additives. (15th January 2016)

• Record Type: Journal Article
• Authors: Kim, Yoon-Jun; Baik, Sung-Il; Bertolucci-Coelho, Leonardo; Mazzaferro, Luca; Ramirez, Giovanni; Erdermir, Ali; Seidman, David N.
• Is Part Of: Scripta materialia. Volume 111(2016)
• Page Start: 64
• Page End: 67
• Publication Date: 2016-01-15
• Subjects: Atom-probe tomography -- Transmission electron microscopy -- Tribofilm -- Boron oxide -- Lubricant; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2015.08.015
• Languages: English
• ISSNs: 1359-6462

Abstract

Graphical abstract: 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.