Publications in Scientific Journals:

A. Tomala, A. Naveira-Suarez, R. Pasaribu, N. Doerr, W.S.M. Werner, H. Störi:
"Behaviour of Corrosion Inhibitors Under Different Tribological Contact";
Tribology Letters, 45 (2012), 3; 397 - 409.

English abstract:
Additives in lubrication technology perform by
physically or chemically adsorbed films on tribological
surfaces. In water lubricated tribosystems when the environment
is very corrosive the additives effect is especially
important. Typically applied corrosion inhibitors neutralize
pH of contaminants in the fluid. Ethanolamines and ethylamines
are known as ligands which can form chelate bonds
with metals via their amino, hydroxyl and deprotonated
hydroxyl groups. In tribology they are widely accepted, as
corrosion inhibitors and detergents especially for waterbased
lubricants. This study inquires static corrosion
behaviour of the solution as well as tribological performance
in two types of tribotesters which represent different
contact situations. Understanding the performance of the
first chemisorbed layers of additives on the work piece
yields important information for the optimization of lubrication
in aqueous solutions. The structure of the adsorbed
compounds based on amines on the tribological surfaces
was studied with usage of angle-resolved X-ray photoelectron
spectroscopy (ARXPS). Analysis of the ARXPS
results was performed using stratification method, which
provides information of the depth and relative amount of
each element in each layer. The experimental results were
compared with simulations performed with simulation of
electron spectra for surface analysis software. The objective
was to confirm the accuracy of the performed analysis.

Boundary lubrication Corrosion inhibitors Additives Rolling contact Sliding contact Molecular orientation

Created from the Publication Database of the Vienna University of Technology.