EP Films from Borate Lubricants
- 1 January 1967
- journal article
- research article
- Published by Taylor & Francis in A S L E Transactions
- Vol. 10 (1) , 67-76
- https://doi.org/10.1080/05698196708972166
Abstract
The EP films generated by borate-containing lubricants were studied to determine their structure and mode of action. Films were generated on SAE Machine test specimens with a blend of tribenzyl borate in solvent neutral oil. Study of the generated films in situ and after chemical stripping show them to be amorphous structures a few thousand angstroms thick containing boron, ferrous iron and organic components. Attempts to reproduce film material synthetically are described. Surfaces with borate EP films are shown to be harder than the steel substrate. Thus, they do not conform to the usual concept of more conventional EP agents which are generally believed to provide an easily-sheared film.Keywords
This publication has 10 references indexed in Scilit:
- The Action of Neutral Organic Phosphates as EP AdditivesJournal of Basic Engineering, 1965
- The Lubrication Mechanism of Tricresyl Phosphate on SteelA S L E Transactions, 1965
- Solid Film Deposition and Non-Sacrificial Boundary LubricationA S L E Transactions, 1963
- Iron(II) Determination in the Presence of Iron(III) Using 4,7-Diphenyl-1,10-phenanthroline.Analytical Chemistry, 1962
- Chemical Changes in Steel Surfaces During Extreme Pressure LubricationA S L E Transactions, 1962
- Phase Separation and Analysis of Sintered Titanium Carbide-Nickel Cermets Using Alcoholic BromineAnalytical Chemistry, 1961
- The temperature of rubbing surfacesWear, 1959
- Cam and Tappet Lubrication. IV–Radioactive Study of Sulfur in the EP FilmA S L E Transactions, 1959
- Colorimetric Determination of Trace Quantities of Boric Acid in Biological MaterialsAnalytical Chemistry, 1955
- A Study of Films Isolated from Passive Stainless SteelsJournal of the Electrochemical Society, 1948