Journal of Materials Science

, Volume 43, Issue 10, pp 3385–3391 | Cite as

Investigation of anti-corrosion properties of Ti:C gradient layers manufactured in hybrid deposition system

NanoSmat 2007 - International Conference on Surfaces, Coatings and Nanostructured Materials


Excellent properties of hard carbon layers and especially, the unique combination of tribological, chemical and physical properties make them a popular coating material for use on surgical prosthesis, biomedical implants, and machine tools. However, their well-known poor adhesion and high internal stress disqualifies them in many possibilities of industrial applications. These drawbacks were improved by deposition of Ti buffer layer. By a combination of Radio Frequency Plasma Assisted Chemical Vapor Deposition (RFPACVD) and DC magnetron sputtering methods, thick carbon films were manufactured on Rex 734 steel. Structure and chemical composition of deposited layers was determined by scanning electron microscope and energy dispersive spectrometer analysis. The main purpose of this work was to determine the corrosion properties of Rex 734 alloy in a typical 0.5 M NaCl solution and to find the influence of Ti:C gradient layers on these properties. Anti-corrosion behavior was measured by the detection of corrosion potential in open circuit and the registration of potentiodynamic characteristics according to Stern–Geary and Tafel methods. Five different types of samples were studied: for full analysis the investigation was conducted for every structural component of the layer: for pure Ti deposited on Rex 734 as well as for Ti containing carbon layer and carbon layer deposited subsequently, and finally the corrosion resistance of Rex 734 steel was measured for comparison. As a result of the investigation it was noticed that the Ti–C interlayer enables to maximize the thickness of DLC films and Ti:C gradient layers have the good influence on the corrosion features of Rex 734 alloy.


Corrosion Potential Polarization Resistance Carbon Layer Energy Dispersive Spectrometer Corrosion Feature 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



This work has been supported by the Ministry of Scientific Research and Information Technology under grants PBZ - KBN 100/T08/2003 and N507 174 32/1697. The author (D. Batory) is a grant holder of “Mechanizm WIDDOK” project supported by European Social Fund and Polish State (contract number Z/2.10/II/2.6/04/05/U/2/06).


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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  1. 1.Institute of Materials Science and EngineeringTechnical University of LodzLodzPoland
  2. 2.Department of General and Inorganic ChemistryUniversity of LodzLodzPoland

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