Electrodeposition of nanocrystalline Fe-P coatings: Influence of bath temperature and glycine concentration on structure, mechanical and corrosion behavior

Natalia Kovalska, Natalia Tsyntsaru, Henrikas Cesiulis, Annet Gebert, Jordina Fornell, Eva Pellicer, Jordi Sort, Wolfgang Hansal, Wolfgang Kautek

Research output: Contribution to journalArticleResearch

2 Citations (Scopus)

Abstract

© 2019 by the authors. A detailed electrochemical study and investigation of a Fe-P glycine bath as a function of the temperature and glycine concentrations and current density, and their resulting corrosion and mechanical behavior is presented. A low addition of glycine to the electrolyte led to a drastic increase of the P content. At low Fe-P deposition rates, heterogeneous rough deposits with morphological bumps and pores were observed. By increasing the Fe-P deposition rate, the number of pores were reduced drastically, resulting in smooth coatings. Increasing the P content led to the formation of nanocrystalline grains from an "amorphous-like" state. Coatings with higher P contents exhibited better corrosion resistance and hardening, most likely attributed to grain boundary strengthening.
Original languageEnglish
Article number189
JournalCoatings
Volume9
DOIs
Publication statusPublished - 1 Jan 2019

Keywords

  • Corrosion
  • Electrodeposition
  • Friction
  • Glycine additive
  • Hardness
  • Iron-phosphorous alloys
  • Temperature
  • Wear

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