2010•Corrosion & ProtectionRequires access

Corrosion Resistance of Electrodeposited Ni-Fe Alloy Coatings with Different Contents of Fe

YU Hai-tao

Abstract

Ni-Fe alloy coatings with different Fe contents were fabricated by electroplating on LY12CZ aluminum alloy substrates.Potentiodynamic polarization curves in 3.5% NaCl solution were tested to investigate the corrosion resistance of the coatings.The results showed that the Ni-Fe coating with 7.3% Fe had better corrosion resistance than Ni coating.With the increase of Fe content,the grain size enlarged,porosity rised,and corrosion resistance declined.

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Key concepts: Corrosion, Materials science, Metallurgy, Alloy, Electroplating, Coating, 6111 aluminium alloy, Porosity