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Coatings 2019, 9(3), 189; https://doi.org/10.3390/coatings9030189

Electrodeposition of Nanocrystalline Fe-P Coatings: Influence of Bath Temperature and Glycine Concentration on Structure, Mechanical and Corrosion Behavior

1
Hirtenberger Engineered Surfaces GmbH, Leobersdorferstrasse 31-33, A-2552 Hirtenberg, Austria
2
Department of Physical Chemistry, University of Vienna, Währinger Strasse 42, A-1090 Vienna, Austria
3
Department of Physical Chemistry, Vilnius University, Naugarduko str. 24, LT-03225 Vilnius, Lithuania
4
Leibniz Institute for Solid State and Materials Research Dresden (IFW), Helmholtzstrasse 20, D-01069 Dresden, Germany
5
Department de Física, Facultat de Ciències, Universitat Autònoma de Barcelona, Campus UAB, Building Cc, E-08193 Bellaterra, Spain
6
Institució Catalana de Recerca i Estudis Avançats (ICREA), Pg. Lluís Companys 23, E-08010 Barcelona, Spain
*
Authors to whom correspondence should be addressed.
Received: 4 January 2019 / Revised: 15 February 2019 / Accepted: 11 March 2019 / Published: 13 March 2019
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Abstract

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. View Full-Text
Keywords: electrodeposition; iron-phosphorous alloys; temperature; glycine additive; corrosion; hardness; friction; wear electrodeposition; iron-phosphorous alloys; temperature; glycine additive; corrosion; hardness; friction; wear
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Kovalska, N.; Tsyntsaru, N.; Cesiulis, H.; Gebert, A.; Fornell, J.; Pellicer, E.; Sort, J.; Hansal, W.; Kautek, W. Electrodeposition of Nanocrystalline Fe-P Coatings: Influence of Bath Temperature and Glycine Concentration on Structure, Mechanical and Corrosion Behavior. Coatings 2019, 9, 189.

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