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The Influence of the Origin of Nickel Salt on the Corrosion Resistance of Ni-P Coatings Deposited on the Surface of Magnesium Alloy MA2-1
https://doi.org/10.31615/j.corros.prot.2025.116.2-2
Abstract
By potentiometry methods and scanning electron microscopy the influence of the compositions of electroless nickel plating solution on the resistance to corrosion damage of Ni–P coatings deposited on the surface of magnesium alloy MA2-1 was studied. It has been shown that, depending on the origin of the nickel salt anion, Ni–P coatings have different corrosion resistance, which in turn is influenced by the morphology of the surface of the formed coating. Ni–P coatings deposited from a sulfuric acid nickel plating solution are more resistant to corrosion damage compared to coatings deposited from a solution containing nickel acetate. This is evidenced by the formation of a small-crystalline structure of the coating from a solution containing nickel sulfate, with a grain size of about 3…5 microns. The highest corrosion resistance is exhibited by Ni–P coatings deposited from a carbonic acid basic nickel plating solution; they are characterized by the lowest grain size of about 1…2 µm and the lowest corrosion current density icorr = 0.38 × 10-5, mA/cm2.
Keywords
Supporting agencies: The work was carried out with the financial support of the State Program of Scientific Research of the Republic of Belarus “Chemical Processes, Reagents and Technologies, Bioregulators and Bioorganic Chemistry”, project 2.1.06.01.
About the Authors
V. S. Shendyukov
Research Institute for Physical Chemical Problems of the Belarusian State University
Belarus
Belarus
Vladislav S. Shendyukov, researcher
14, Leningradskaya str., Minsk, 220006
S. S. Perevoznikov
Research Institute for Physical Chemical Problems of the Belarusian State University
Belarus
Belarus
Sergey S. Perevoznikov, senior researcher
14, Leningradskaya str., Minsk, 220006
L. S. Tsybulskaya
Research Institute for Physical Chemical Problems of the Belarusian State University
Belarus
Belarus
Ludmila S. Tsybulskaya, Cand. Sci. in Chemistry, leading researcher
14, Leningradskaya str., Minsk, 220006
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For citations:
Shendyukov V.S., Perevoznikov S.S., Tsybulskaya L.S. The Influence of the Origin of Nickel Salt on the Corrosion Resistance of Ni-P Coatings Deposited on the Surface of Magnesium Alloy MA2-1. Theory and Practice of Corrosion Protection. 2025;30(2):20-29. (In Russ.) https://doi.org/10.31615/j.corros.prot.2025.116.2-2
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