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Impact of current density on the surface roughness of electrodeposited zinc coatings from sulphate baths

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2018
XX YuCorr, May 21-24, 2018, Tara Mountain, Serbia (6.261Mb)
Authors
Riđošić, Marija
Tomić, Milorad V.
Fuchs-Godec, Regina
Pavlović, Miroslav M.
Pavlović, Miomir
Conference object (Published version)
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Abstract
Aim of this work was to determine influence of current density on the roughness of the electrodeposited zinc coatings. Electrodeposition carried out from two same solutions containing different brightening additives. Furfural (in solution I) and dextrin (in solution II) were used as additives. Influences of the thickness of the coatings on the surface roughness depending of the current density and time of deposition and effect of the added additives on the structure of the coatings were also studied. Electrodeposition of the zinc coatings was done galvanostatically at current densities of 1, 2 and 4 A dm-2. Times of electrodeposition were 10, 20 and 30 minutes. Pure zinc was used as anode, and steel with unknown composition was used as cathode. All experiments were done at room temperature, baths volume were 500 cm3. Obtained results show that zinc coatings obtained from solution II have lower roughness than those deposited from solution I. Current density and thickness of t...he coatings does not have large influence on the roughness. The roughness values are from 0.41 μm to 1.219 μm (solution I) and from 0.316 μm to 0.812 μm (solution II). Current efficiency in solution I is 92.98-94.55% and in solution II 91.5- 96.91%. Coatings from solution II have better structure compared to coatings obtained from solution I, so it can be concluded that dextrin is better brightening additive than furfural in used sulphate baths.

Keywords:
zinc coatings / additives / thickness / current density / surface roughness / electroplating
Source:
Stecište nauke i prakse u oblastima korozije, zaštite materijala i životne sredine [Elektronski izvor] : knjiga radova = Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection : proceedings / XX YuCorr Međunarodna konferencija = XX YuCorr International Conference, May 21-24, 2018, Tara Mountain, Serbia, 2018, 151-152
Publisher:
  • Beograd : Naučna ustanova za hemiju, tehnologiju i metalurgiju, Institut od nacionalnog značaja
  • Beograd : Udruženje inženjera Srbije za koroziju i zaštitu materijala ( UISKOZAM )

ISBN: 978-86-82343-26-4

[ Google Scholar ]
Handle
https://hdl.handle.net/21.15107/rcub_cer_2647
URI
https://cer.ihtm.bg.ac.rs/handle/123456789/2647
Collections
  • Radovi istraživača / Researchers' publications
Institution/Community
IHTM
TY  - CONF
AU  - Riđošić, Marija
AU  - Tomić, Milorad V.
AU  - Fuchs-Godec, Regina
AU  - Pavlović, Miroslav M.
AU  - Pavlović, Miomir
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2647
AB  - Aim of this work was to determine influence of current density on the roughness of the
electrodeposited zinc coatings. Electrodeposition carried out from two same solutions containing
different brightening additives. Furfural (in solution I) and dextrin (in solution II) were used as
additives. Influences of the thickness of the coatings on the surface roughness depending of the
current density and time of deposition and effect of the added additives on the structure of the coatings
were also studied.
Electrodeposition of the zinc coatings was done galvanostatically at current densities of 1, 2 and 4 A
dm-2. Times of electrodeposition were 10, 20 and 30 minutes. Pure zinc was used as anode, and steel
with unknown composition was used as cathode. All experiments were done at room temperature,
baths volume were 500 cm3.
Obtained results show that zinc coatings obtained from solution II have lower roughness than those
deposited from solution I. Current density and thickness of the coatings does not have large influence
on the roughness. The roughness values are from 0.41 μm to 1.219 μm (solution I) and from 0.316
μm to 0.812 μm (solution II). Current efficiency in solution I is 92.98-94.55% and in solution II 91.5-
96.91%. Coatings from solution II have better structure compared to coatings obtained from solution
I, so it can be concluded that dextrin is better brightening additive than furfural in used sulphate
baths.
PB  - Beograd : Naučna ustanova za hemiju, tehnologiju i metalurgiju, Institut od nacionalnog značaja
PB  - Beograd : Udruženje inženjera Srbije za koroziju i zaštitu materijala  ( UISKOZAM )
C3  - Stecište nauke i prakse u oblastima korozije, zaštite materijala i životne sredine [Elektronski izvor] : knjiga radova = Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection : proceedings / XX YuCorr Međunarodna konferencija = XX YuCorr International Conference, May 21-24, 2018, Tara Mountain, Serbia
T1  - Impact of current density on the surface roughness of electrodeposited zinc coatings from sulphate baths
SP  - 151
EP  - 152
UR  - https://hdl.handle.net/21.15107/rcub_cer_2647
ER  - 
@conference{
author = "Riđošić, Marija and Tomić, Milorad V. and Fuchs-Godec, Regina and Pavlović, Miroslav M. and Pavlović, Miomir",
year = "2018",
abstract = "Aim of this work was to determine influence of current density on the roughness of the
electrodeposited zinc coatings. Electrodeposition carried out from two same solutions containing
different brightening additives. Furfural (in solution I) and dextrin (in solution II) were used as
additives. Influences of the thickness of the coatings on the surface roughness depending of the
current density and time of deposition and effect of the added additives on the structure of the coatings
were also studied.
Electrodeposition of the zinc coatings was done galvanostatically at current densities of 1, 2 and 4 A
dm-2. Times of electrodeposition were 10, 20 and 30 minutes. Pure zinc was used as anode, and steel
with unknown composition was used as cathode. All experiments were done at room temperature,
baths volume were 500 cm3.
Obtained results show that zinc coatings obtained from solution II have lower roughness than those
deposited from solution I. Current density and thickness of the coatings does not have large influence
on the roughness. The roughness values are from 0.41 μm to 1.219 μm (solution I) and from 0.316
μm to 0.812 μm (solution II). Current efficiency in solution I is 92.98-94.55% and in solution II 91.5-
96.91%. Coatings from solution II have better structure compared to coatings obtained from solution
I, so it can be concluded that dextrin is better brightening additive than furfural in used sulphate
baths.",
publisher = "Beograd : Naučna ustanova za hemiju, tehnologiju i metalurgiju, Institut od nacionalnog značaja, Beograd : Udruženje inženjera Srbije za koroziju i zaštitu materijala  ( UISKOZAM )",
journal = "Stecište nauke i prakse u oblastima korozije, zaštite materijala i životne sredine [Elektronski izvor] : knjiga radova = Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection : proceedings / XX YuCorr Međunarodna konferencija = XX YuCorr International Conference, May 21-24, 2018, Tara Mountain, Serbia",
title = "Impact of current density on the surface roughness of electrodeposited zinc coatings from sulphate baths",
pages = "151-152",
url = "https://hdl.handle.net/21.15107/rcub_cer_2647"
}
Riđošić, M., Tomić, M. V., Fuchs-Godec, R., Pavlović, M. M.,& Pavlović, M.. (2018). Impact of current density on the surface roughness of electrodeposited zinc coatings from sulphate baths. in Stecište nauke i prakse u oblastima korozije, zaštite materijala i životne sredine [Elektronski izvor] : knjiga radova = Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection : proceedings / XX YuCorr Međunarodna konferencija = XX YuCorr International Conference, May 21-24, 2018, Tara Mountain, Serbia
Beograd : Naučna ustanova za hemiju, tehnologiju i metalurgiju, Institut od nacionalnog značaja., 151-152.
https://hdl.handle.net/21.15107/rcub_cer_2647
Riđošić M, Tomić MV, Fuchs-Godec R, Pavlović MM, Pavlović M. Impact of current density on the surface roughness of electrodeposited zinc coatings from sulphate baths. in Stecište nauke i prakse u oblastima korozije, zaštite materijala i životne sredine [Elektronski izvor] : knjiga radova = Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection : proceedings / XX YuCorr Međunarodna konferencija = XX YuCorr International Conference, May 21-24, 2018, Tara Mountain, Serbia. 2018;:151-152.
https://hdl.handle.net/21.15107/rcub_cer_2647 .
Riđošić, Marija, Tomić, Milorad V., Fuchs-Godec, Regina, Pavlović, Miroslav M., Pavlović, Miomir, "Impact of current density on the surface roughness of electrodeposited zinc coatings from sulphate baths" in Stecište nauke i prakse u oblastima korozije, zaštite materijala i životne sredine [Elektronski izvor] : knjiga radova = Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection : proceedings / XX YuCorr Međunarodna konferencija = XX YuCorr International Conference, May 21-24, 2018, Tara Mountain, Serbia (2018):151-152,
https://hdl.handle.net/21.15107/rcub_cer_2647 .

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