Effect of Mo addition on corrosion of Zn coatings electrodeposited on steel

Honorata Kazimierczak*, Jerzy Morgiel, Zbigniew Swiatek, Jesús Manuel Vega, Eva García-Lecina

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


ZnMo coatings with Mo content from 0.5 to 6 wt.% were electrodeposited on steel from citrate electrolytes. Electrochemical studies of their corrosion behaviour performed in a 5 wt.% NaCl showed that the low Mo content (∼0.5–1.5 wt.%) enhances corrosion protection significantly, whilst higher contents barely improve the corrosion properties in comparison to pure zinc coatings. Microstructural and phase characterisation indicate that the formation of a continuous and compact thin oxide film on the surface of the ZnMo (0.5–1.5 wt.%) coatings is the key factor affecting the high corrosion resistance of such coatings.

Original languageEnglish
Pages (from-to)107-119
Number of pages13
JournalCorrosion Science
StatePublished - 1 May 2018
Externally publishedYes


  • Citrates
  • Corrosion
  • Electrodeposition
  • Oxide film
  • ZnMo coatings


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