Corrosion protection of commercial steel using stainless steel coatings deposited by Cathodic Arc Plasma Deposition technique |
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Authors: | Z Iqbal I Hussain A Rauf M Zakaullal Syed Tajammul Hussain A ul Haq |
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Affiliation: | (1) Chemistry Department, Faculty of Science, Cairo University, Giza, 12613, Egypt;(2) Egyptian Petroleum Research Institute (EPRI), Nasr City, Cairo, Egypt |
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Abstract: | The commercial steel AISI 1010 was coated with AISI 316L steel using Cathodic Arc Plasma Deposition (CAPD) technique. The
coatings were deposited in vacuum and in the presence of nitrogen, acetylene and mixture of the two as reactive gases. The
coatings were deposited as a function of time while other parameters remained constant. The coatings 0.75 to 1.3 μm thick
were adherent and amorphous. The aqueous corrosion properties of the coated samples in 3.5 wt % NaCl solution were studied
by Tafel, cyclic and potentiodynamic polarization measurements. The derived corrosion parameters were then compared among
the various uncoated and coated samples. The study revealed that the coated samples were more corrosion resistant than the
uncoated one. Similarly, the samples coated in the nitrogen + acetylene mixture atmosphere were more corrosion resistant than
the samples coated in only nitrogen and acetylene atmospheres. The corrosion parameters were also compared as a function of
coating time to ascertain best coating thickness. |
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