@ARTICLE{Kwolek_P._Effect_2020,
 author={Kwolek, P.},
 volume={vol. 65},
 number={No 1},
 journal={Archives of Metallurgy and Materials},
 pages={175-183},
 howpublished={online},
 year={2020},
 publisher={Institute of Metallurgy and Materials Science of Polish Academy of Sciences},
 publisher={Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences},
 abstract={Sodium orthovanadate was tested as a corrosion inhibitor of intermetallic Al2Cu in 1 M H3PO4. The Al2Cu – H3PO4 – Na3VO4 system was studied using the following methods: inductively coupled plasma optical emission spectrometry, scanning electron microscopy with energy dispersive x-ray spectroscopy, x-ray diffraction, electrochemical impedance spectroscopy, polarisation and open circuit potential. It was found that the corrosion rate decreased as the inhibitor concentration increased. The highest inhibition efficiency 99% was obtained when sodium orthovanadate initial concentration was equal to 100 mM, pH = 1.11, due to precipitation of a protective layer of insoluble salt, containing vanadium, phosphorus, sodium and oxygen, on the surface. At pH = 0.76 the protective layer was not formed and inhibition efficiency decreased to 76%. Selective corrosion of the intermetallic phase caused a significant increase of an electric double layer capacitance and decrease of a charge transfer resistance.},
 type={Article},
 title={Effect of Na3VO4 Inhibitor on the Corrosion Resistance of Al2Cu Intermetallic Phase in H3PO4 Aqueous Solution},
 URL={http://journals.pan.pl/Content/114519/PDF/AMM-2020-1-22-Kwolek.pdf},
 doi={10.24425/amm.2019.131112},
 keywords={intermetallic phase, selective corrosion, orthophosphoric acid, electrochemical impedance spectroscopy, sodium orthovanadate},
}