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- Title
Corrosion Properties of CrAlN and TiAlN Coatings Deposited by Thermoreactive Deposition Process.
- Authors
CEGIL, O.; KILINC, B.; SEN, S.; SEN, U.
- Abstract
In the present study, the corrosion behaviors of chromium aluminum nitride (CrAlN) and titanium aluminum nitride (TiAlN) coatings deposited on AISI D2 steel samples are reported. Steel samples were pre-nitrided at 575 °C for 8 h in the first step of the coating process, and then TiAlN and CrAlN coatings were performed by thermoreactive deposition process in a powder mixture consisting of alumina, ammonium chloride, aluminum and ferrous titanium or ferrous chromium for TiAlN or CrAlN, respectively. Coating treatments were realized at 1000 °C for 2 h. Coated samples were characterized by X-ray diffraction analysis, optical microscopy, scanning electron microscopy, and microhardness tester. The corrosion properties of uncoated and coated samples were characterized by potentiostatic polarization test. CrAlN and TiAlN coated steel specimens exhibited the higher corrosion resistance than uncoated steels in a 0.5 M NaCl solution.
- Publication
Acta Physica Polonica: A, 2014, Vol 125, Issue 2, p359
- ISSN
0587-4246
- Publication type
Academic Journal
- DOI
10.12693/APhysPolA.125.359