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

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.
Authors:
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Publication Date:
OSTI Identifier:
1248931
DOE Contract Number:
AC02-06CH11357
Resource Type:
Journal Article
Resource Relation:
Journal Name: Scripta Materialia; Journal Volume: 111
Publisher:
Elsevier
Research Org:
Argonne National Laboratory (ANL)
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy (EERE) - Office of Vehicle Technology
Country of Publication:
United States
Language:
English
Subject:
Atom-probe tomography; Boron oxide; Lubricant; Transmission electron microscopy; Tribofilm