The corrosion behaviour of titanium nitride (TiN) CVD coatings on AISI 316L stainless steel and on inert Si3N4 in hydrochloric acid is studied with a.c. and d.c. electrochemical methods. The electrochemical behaviour of TiN on stainless steel can be divided into active and passive behaviour according to the state of the substrate. The measurements indicate that there is an oxide layer on TiN that is responsible for its noble electrochemical behaviour. A model that describes the formation of the oxide layer on TiN in an electrolyte is proposed.
Electrochemical characterization of TiN coatings
ELSENER, BERNHARD;
1993-01-01
Abstract
The corrosion behaviour of titanium nitride (TiN) CVD coatings on AISI 316L stainless steel and on inert Si3N4 in hydrochloric acid is studied with a.c. and d.c. electrochemical methods. The electrochemical behaviour of TiN on stainless steel can be divided into active and passive behaviour according to the state of the substrate. The measurements indicate that there is an oxide layer on TiN that is responsible for its noble electrochemical behaviour. A model that describes the formation of the oxide layer on TiN in an electrolyte is proposed.
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