Article metrics

  • citations in SCindeks: 0
  • citations in CrossRef:0
  • citations in Google Scholar:[=>]
  • visits in previous 30 days:12
  • full-text downloads in 30 days:9
article: 5 from 7  
Back back to result list
Vojnotehnički glasnik
2016, vol. 64, iss. 3, pp. 649-669
article language: English
document type: Original Scientific Paper
published on: 11/06/2016
doi: 10.5937/vojtehg64-10578
Creative Commons License 4.0
Electrodeposition, characterization and corrosion investigations of galvanic tin-zinc layers from pyrophosphate baths
aMEAB Chemie Technik GmbH, Aachen, Germany
bIME Process Metallurgy and Metal Recycling, RWTH Aachen University, Germany



Tin-zinc alloy deposits are recognised as a potential alternative to toxic cadmium as corrosion resistant coatings. Tin-zinc alloy layers offer outstanding corrosion protection for steel by combining the barrier protection of tin with the galvanic protection of zinc. Tin-zinc coatings have been used on the chassis of electrical and electronic apparatus and on critical automotive parts such as fuel and brake line components. In this study, tin-zinc alloy deposits were successfully prepared from alkaline, pyrophosphate-based electrolytes. The plating process gives a compact and fine grained deposit. The desired proportions of tin and zinc in the deposited alloy are determined by the bath composition and the operating conditions during plating. Three electrode systems were used for the electrochemical investigation. The mechanism of Sn-Zn electrodeposition was studied by linear and cyclic voltammetry. The corrosion parameters, including open-circuit potential-time curves, corrosion potential and corrosion current density of electrodeposited tin-zinc alloys of different compositions have been examined in a brine medium containing 3 wt. % NaCl. The corrosion resistance depends on the plating composition. The Sn-28Zn deposit showed the best anticorrosive properties.


electrodeposition; corrosion; galvanic layers; zinc; tin


Andrle, C., Jelinek, T.W. (2007) Hull-Zelle zur Untersuchung von galvanischen Elektrolyten. Eugen G. Leuze Verlag, ISBN 3-87480-224-8
Ashiru, O.A., Shirokoff, J. (1996) Electrodeposition and characterization of tin-zinc alloy coatings. Applied Surface Science, 103(2): 159-169
Despic, A.R., Jović, V.D. (1996) Formation of Metallic Materials of Desired Structure and Properties by Electrochemical Deposition. Materials Science Forum, 214: 239-248
Dubent, S., de Petris-Wery, M., Saurat, M., Ayedi, H.F. (2007) Composition control of tin-zinc electrodeposits through means of experimental strategies. Materials Chemistry and Physics, 104(1): 146-152
Stopic, M. (2015) Abscheidung, Characterisierung und Korrosions untersuchungen von galvanischen Zinn-Zink-Schichten aus Pyrophosphatbädern. Shaker Verlag GmbH
Taguchi, A.da S., Bento, F.R., Mascaro, L.H. (2008) Nucleation and growth of tin-zinc electrodeposits on a polycrystalline platinum electrode in tartaric acid. Journal of the Brazilian Chemical Society, 19(4): 727-733
Vitkova, St., Ivanova, V., Raichevsky, G. (1996) Electrodeposition of low tin content zinc-tin alloys. Surface and Coatings Technology, 82(3): 226-231
Wang, K., Pickering, H.W., Weil, K.G. (2004) Corrosion Behavior Of Electroplated Tin-Zinc Coatings. Plating & Surface Finishing, pp. 34-37. January