Effect of Al 2 O 3 and NiO Nanoparticle Additions on the Structure and Corrosion Behavior of Sn—4% Zn Alloy Coating Carbon Steel

Ghada A. Alshammri, Naglaa Fathy (), Shereen Mohammed Al-Shomar, Alhulw H. Alshammari, El-Sayed M. Sherif and Mohamed Ramadan
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Ghada A. Alshammri: Department of Physics, College of Science, University of Ha’il, Ha’il P.O. Box 2440, Saudi Arabia
Naglaa Fathy: Department of Physics, College of Science, University of Ha’il, Ha’il P.O. Box 2440, Saudi Arabia
Shereen Mohammed Al-Shomar: Department of Physics, College of Science, University of Ha’il, Ha’il P.O. Box 2440, Saudi Arabia
Alhulw H. Alshammari: Physics Department, College of Science, Jouf University, Sakaka P.O. Box 2014, Saudi Arabia
El-Sayed M. Sherif: Center of Excellence for Research in Engineering Materials (CEREM), College of Engineering, King Saud University, Riyadh P.O. Box 800, Saudi Arabia
Mohamed Ramadan: College of Engineering, University of Ha’il, Ha’il P.O. Box 2440, Saudi Arabia

Sustainability, 2023, vol. 15, issue 3, 1-17

Abstract: The application of a higher corrosion resistance coating modified with nano additions can effectively decrease or prevent corrosion from occurring. In the present work, a novel method is successfully developed for the modification of carbon steel surfaces aiming for high corrosion resistance using Sn—4% Zn alloy/nanoparticle composite (NiO+ Al 2 O 3 ) coating. Sn—4% Zn alloy/nanoparticle composite (NiO+ Al 2 O 3 ) coatings were deposed on carbon steel using a direct tinning process that involved a power mixture of Sn—4% Zn alloy along with a flux mixture. Regular coating and interface structures were achieved by individual Al 2 O 3 and both NiO and Al 2 O 3 nanoparticle combined additions in the Sn-Zn coating. The maximum coating thickness of 70 ± 1.8 µm was achieved for Al 2 O 3 nanoparticles in the Sn-Zn coating. Interfacial intermetallic layer thickness decreased with all used nanoparticle additions in individual and hybrid conditions. The minimum intermetallic layer thickness of about 2.29 ± 0.28 µm was achieved for Al 2 O 3 nanoparticles in the Sn—Zn coating. Polarization and impedance measurements were used to investigate the influence of the incorporated Al 2 O 3 , NiO, and hybrid Al 2 O 3 /NiO nanoparticles on the passivation of the low-carbon steel (LCS) corrosion and the coated Sn—Zn LCS in sodium chloride solution. It was found that the presence of Al 2 O 3 , NiO, and Al 2 O 3 /NiO nanoparticles remarkably improved the corrosion resistance. The corrosion measurements confirmed that the corrosion resistance of the coated Sn-Zn carbon steel was increased in the presence of these nanoparticles in the following order: Al 2 O 3 /NiO > NiO > Al 2 O 3 .

Keywords: low-carbon steel; microstructure; corrosion passivation; nanoparticles; Sn-Zn coating; NiO; Al 2 O 3 (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
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