Electrochemical Production Of Ni-Mo Coatings

Keywords

electrodeposition, coating, morphology, nickel-molybdenum, self-regulating electrolyte, strontium molybdate

Abstract

Regimes of electrochemical deposition of nickel-molybdenum coatings from a citrate-ammonia electrolyte containing strontium molybdate as a source of molybdate anions were investigated. The morphology of the obtained coatings and the most likely mechanism of their deposition under different conditions were shown. The proposed electrolyte is characterized by high stability, technologically and environmentally safe.

References

1. Brooman E.W. Corrosion performance of environmentally acceptable alternatives to cadmium and chromium coatings: chromium: part I // Met. Finish. – 000. – 98. – P. 39-45. https://doi.org/10.1016/S0026-0576(00)82740-3
2. Chassaing E., Quang K., Wiart R. Mechanism of nickel-molybdenum alloy electrodeposition in citrate electrolytes // J. Appl. Electrochem. – 1989. – 19. – P. 839-844. https://doi.org/10.1007/BF01007931
3. Yagi S., Kawakami A., Murase K. et al. Ni-Mo alloying of nickel surface by alternating pulsed electrolysis using molybdenum (VI) baths // Electrochim. Acta. – 2007. – 52. – P. 6041-6051. https://doi.org/10.1016/j.electacta.2007.03.063
4. Hamada Y. Z., Bayakly N., George D. et al. Speciation of molybdenum (VI)-citric acid complexes in aqueous solutions // Synthesis and reactivity in inorganic, metal-organic, and nano-metal chemistry. – 2008. – 38, № 8. – P. 664-668. https://doi.org/10.1080/15533170802371323