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Improvement of salt corrosion resistance of titanium alloys by PVD and CVD coatings

Béguin, Jean-Denis and Adrian, Denise and Petit, Jacques-Alain and Rivière, Jean-Paul and Vahlas, Constantin and Vaillant, S. Improvement of salt corrosion resistance of titanium alloys by PVD and CVD coatings. (2007) In: 20 th International Conference on Surface Modification Technologies, 25-29 Sep 2006, Vienna, Austria .

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Abstract

The corrosion resistance of two kind of coating systems was investigated to protect a Ti-6242 titanium under hot salt stress corrosion conditions: PVD silicon coatings and CVD alumina coating. All these coatings were tested under hot Salt Stress Corrosion (SSC) with a constant static mechanical stress and cyclic temperature conditions, and have been brought near to the real industrial work conditions. Although all coated specimens were damaged in salted area, both SiC and Al2O3 coatings showed no SSC rupture during 100 h,while SixNy lifetime under SSC conditions was increased by a factor 2 compared to noncoated one. As well as these interesting quantitative results, coated specimens exhibit a good adherence on titanium substrate.

Item Type:Conference or Workshop Item (Paper)
Additional Information:Proceedings of the 20 th International Conference on Surface Modification Technologies published by ASM international :http://www.asminternational.org/portal/site/www/AsmStore/ProductDetails/?vgnextoid=82cb2b41ce0f8110VgnVCM100000701e010aRCRD#details
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
Other partners > Université de Poitiers (FRANCE)
Other partners > SAFRAN (FRANCE)
Laboratory name:
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Deposited By: Cedric ARNAL
Deposited On:21 Jun 2011 10:22

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