Publication detail

Anodizing of Zinc-Titanium Alloy in NaOH and KOH Baths

REMEŠOVÁ, M. KLAKURKOVÁ, L. ČELKO, L. SLÁDKOVÁ, L. JECH, D. KAISER, J.

Original Title

Anodizing of Zinc-Titanium Alloy in NaOH and KOH Baths

Type

abstract

Language

English

Original Abstract

Electrochemical process of conversion coatings formation on Zn-Ti alloy surface during one-step anodizing process was studied in NaOH and KOH electrolytes over the range of voltages (4-50 V) and constant time in order to investigate parameters for the origin of anodic zinc coating. Stainless steel was used as a counter electrode and electrolyte during the anodizing process was agitated by compressed air. Coatings microstructures and morphology were characterized by means of scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX). Surface topography was investigated prior and after the anodizing using non-contact optical 3D profilometer. It was found that high voltage (50 V) and low concentrations of electrolyte (0.04 and 0.1 mol/L NaOH) led to origin of white coloured oxide coatings, while lower voltage (4 and 6 V) and higher concentrations of electrolyte promote the origin of black coloured oxide coatings. Concentration of electrolyte and voltage influenced the thickness of conversion coatings and its surface morphology. Moreover, the surface morphology of the coatings was also influenced by the heterogeneity of Zn-Ti substrate alloy.

Keywords

Electrochemistry; Zinc Alloy; Anodizing; Conversion Coatings; Surface Topography

Authors

REMEŠOVÁ, M.; KLAKURKOVÁ, L.; ČELKO, L.; SLÁDKOVÁ, L.; JECH, D.; KAISER, J.

Released

27. 6. 2016

Publisher

Brno University of Technology

Location

Brno, Czech Republic

ISBN

978-80-214-5357-9

Book

Materials Structure & Micromechanics of Fracture

Edition

1

Edition number

1

Pages from

115

Pages to

115

Pages count

1

BibTex

@misc{BUT130329,
  author="Michaela {Remešová} and Lenka {Klakurková} and Ladislav {Čelko} and Lucia {Sládková} and David {Jech} and Jozef {Kaiser}",
  title="Anodizing of Zinc-Titanium Alloy in NaOH and KOH Baths",
  booktitle="Materials Structure & Micromechanics of Fracture",
  year="2016",
  series="1",
  edition="1",
  pages="115--115",
  publisher="Brno University of Technology",
  address="Brno, Czech Republic",
  isbn="978-80-214-5357-9",
  note="abstract"
}