The ability of levelling an initially irregular surface is investigated for electrochemical deposition of iron-carbon coatings from an electrolyte that does not contain dedicated levelling agents. The environmentally friendly electrolyte with citric acid as carbon source straightforwardly allows the reproducible deposition of coatings with very high microhardness. Successive re-deposition of additional layers is possible without extensive efforts and without compromising the good coating properties. Both the levelling on-its-own and the ability of forming multilayers provide promising prospects for applications where hard surfaces are required or need to be repaired.
IzakiM, OmiT.Structural characterization of martensitic iron-carbon alloy films electrodeposited from an iron(II) sulfate solution. Metall Mater Trans A. 1996;27A:483–486.
3.
FujiwaraY, IzakiM, EnomotoH, Optimization of bath composition for hard Fe-C alloy plating. J Appl Electrochem. 1998;28:855–862.
4.
NielsenJO, MøllerP, PantleonK.Electrodeposition of iron with co-deposition of carbon – on the nature of nanocrystalline Fe-C coatings. Metall Mater Trans A. 2019;50A:3785–3793.
5.
HaseebASMA, HayashiY, MasudaM, On the nature of the electrochemically synthesized hard Fe-0.96 mass pct C alloy film. Metall Mater Trans B. 2002;33B:921–927.
6.
MüllerT, GrimwoodJ, BachmaierA, Electrodeposition of Fe-C alloys from citrate baths: structure, mechanical properties, and thermal stability. Metals (Basel). 2018;8(363):1–13.
7.
NielsenJO, GrumsenFB, PantleonK.Thermal evolution of ferrite in electrodeposited iron–carbon coatings in relation to phase transformations during post-deposition annealing. Mat Charact. 2021;172:110886-1-8.
8.
WinandR.Electrodeposition of metals and alloys: new results and perspectives. Electrochim Acta. 1994;39:1091–1105.
NielsenJO, ChristiansenTL, PantleonK.In-situ analysis of the thermal evolution of electrodeposited Fe-C coatings. Metall Mater Trans A. 2020;51A:4880–4889.
11.
NielsenJO, PantleonK.Evolution of hard Fe–C electrodeposits with temperature. Surf Eng. 2020;36:960–965.
12.
FujiwaraY, NagayamaT, NakaeA, Electrodeposition of Fe-C alloys from bath containing dicarboxylic acids with a linear alkyl chain. J Electrochem Soc. 1996;143:2584–2590.
13.
OniciuL, MuresanL.Some fundamental aspects of levelling and brightening in metal electrodeposition. J Appl Electrochem. 1991;21:565–574.
14.
ButteryTC, HamedMS.A study of geometric and true levelling in electroplating using stylus methods. Wear. 1979;57:207–215.
TidkeDJ, RamaswamyN.A profilometric study of levelling in electroplating. J Appl Electrochem. 1984;14:83–90.
17.
NečasD, ValtrM, KlapetekP.How levelling and scan line corrections ruin roughness measurements and how to prevent it. Sci Rep. 2020;10:15294.
18.
KruglikovSS.Levelling power of electrolytes and microgeometric characteristics of surfaces of electrodeposited metals, Russian J. Electrochem. 2001;37:776–779.
19.
DanilovFI, ProtsenkoVS, UbiikonAV.Kinetic regularities governing the reaction of electrodeposition of iron from solutions of citrate complexes of iron(III). Russ J Electrochem. 2005;41:1282–1289.
20.
KimMJ, ChoeS, KimHC, Electrochemical behavior of citric acid and Its influence on Cu Electrodeposition for damascene metallization. J Electrochem Soc. 2015;162:D354–D359.
21.
ZhuS, YueJ, QinX, The role of citric acid in perfecting platinum monolayer on palladium nanoparticles during the surface limited redox replacement reaction. J Electrochem Soc. 2016;163:D3040–D3046.
