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Powder Metallurgy and Metal Ceramics

, Volume 52, Issue 3–4, pp 223–227 | Cite as

Corrosion resistance of TiN films in 3% NaCl solution

Article
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The paper examines the corrosion behavior of textured polycrystalline and amorphous TiN films in 3% NaCl solution. It is shown that TiN films are oxidized by pitting corrosion. The main cause of corrosion instability of the textured polycrystalline films is interaction with impurities (in particular, oxygen and carbon) that form “clouds” around the grain boundaries. In case of the amorphous–crystalline films, the clouds are observed around associated interfaces. The corrosion resistance of textured polycrystalline films decreases with higher thermal stresses resulting from different coefficients of thermal expansion of the film and substrate. The corrosion resistance of amorphous–crystalline TiN films is about 700 times higher than that of bulk TiN powder material and 2 to 10 times higher than that of textured polycrystalline films.

Keywords

thin film electrochemical corrosion nanostructure nitride 

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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  • A. S. Dranenko
    • 1
  • V. A. Lavrenko
    • 1
  • V. N. Talash
    • 1
  1. 1.Frantsevich Institute for Problems of Materials ScienceNational Academy of Sciences of UkraineKievUkraine

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