Skip to main content
Top

2018 | OriginalPaper | Chapter

Effect of Fluoride Ion on the Microstructure and Properties of Permanganate Conversion Coating on AZ91D Magnesium Alloy

Authors : Shih-An Yang, Chao-Sung Lin

Published in: Magnesium Technology 2018

Publisher: Springer International Publishing

Activate our intelligent search to find suitable subject content or patents.

search-config
loading …

Abstract

Because of the toxicity of chromate, it is necessary to develop alternatives to chromate conversion coatings. Permanganate conversion coating treatment is one of the methods that are potentially alternative to the chromate treatment on magnesium alloys. This study investigated the effect of fluoride ion in the permanganate solution on the microstructure and corrosion resistance of the conversion coating on AZ91D alloy. Experimental results showed that the presence of fluoride ion impeded the conversion coating reaction and accordingly retarded the formation of the conversion coating, which resulted in a thinner and more uniform coating. Therefore, the permanganate conversion coating formed in the fluoride-containing solution was nearly crack-free and displayed higher corrosion resistance than the coating formed in the solution without fluoride ion.

Dont have a licence yet? Then find out more about our products and how to get one now:

Springer Professional "Wirtschaft+Technik"

Online-Abonnement

Mit Springer Professional "Wirtschaft+Technik" erhalten Sie Zugriff auf:

  • über 102.000 Bücher
  • über 537 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Nachhaltigkeit
  • Finance + Banking
  • Management + Führung
  • Marketing + Vertrieb
  • Maschinenbau + Werkstoffe
  • Versicherung + Risiko

Jetzt Wissensvorsprung sichern!

Springer Professional "Technik"

Online-Abonnement

Mit Springer Professional "Technik" erhalten Sie Zugriff auf:

  • über 67.000 Bücher
  • über 390 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Nachhaltigkeit
  • Maschinenbau + Werkstoffe




 

Jetzt Wissensvorsprung sichern!

Literature
1.
go back to reference M. M. Avedesian and H. Baker, ASM specialty handbook: magnesium and magnesium alloys. ASM international, 1999. M. M. Avedesian and H. Baker, ASM specialty handbook: magnesium and magnesium alloys. ASM international, 1999.
2.
go back to reference E. Ghali, W. Dietzel, and K.-U. Kainer, “General and localized corrosion of magnesium alloys: a critical review,” Journal of Materials Engineering and Performance, vol. 13, no. 1, pp. 7–23, 2004. E. Ghali, W. Dietzel, and K.-U. Kainer, “General and localized corrosion of magnesium alloys: a critical review,” Journal of Materials Engineering and Performance, vol. 13, no. 1, pp. 7–23, 2004.
3.
go back to reference E. Aghion, B. Bronfin, and D. Eliezer, “The role of the magnesium industry in protecting the environment,” Journal of materials processing technology, vol. 117, no. 3, pp. 381–385, 2001. E. Aghion, B. Bronfin, and D. Eliezer, “The role of the magnesium industry in protecting the environment,” Journal of materials processing technology, vol. 117, no. 3, pp. 381–385, 2001.
4.
go back to reference A. A. Aal, “Protective coating for magnesium alloy,” Journal of materials science, vol. 43, no. 8, pp. 2947–2954, 2008. A. A. Aal, “Protective coating for magnesium alloy,” Journal of materials science, vol. 43, no. 8, pp. 2947–2954, 2008.
5.
go back to reference L. Xia and R. L. McCreery, “Chemistry of a Chromate Conversion Coating on Aluminum Alloy AA2024‐T3 Probed by Vibrational Spectroscopy,” Journal of the Electrochemical Society, vol. 145, no. 9, pp. 3083–3089, 1998. L. Xia and R. L. McCreery, “Chemistry of a Chromate Conversion Coating on Aluminum Alloy AA2024‐T3 Probed by Vibrational Spectroscopy,” Journal of the Electrochemical Society, vol. 145, no. 9, pp. 3083–3089, 1998.
6.
go back to reference X. Zhang, C. Van den Bos, W. Sloof, A. Hovestad, H. Terryn, and J. De Wit, “Comparison of the morphology and corrosion performance of Cr (VI)-and Cr (III)-based conversion coatings on zinc,” Surface and coatings technology, vol. 199, no. 1, pp. 92–104, 2005. X. Zhang, C. Van den Bos, W. Sloof, A. Hovestad, H. Terryn, and J. De Wit, “Comparison of the morphology and corrosion performance of Cr (VI)-and Cr (III)-based conversion coatings on zinc,” Surface and coatings technology, vol. 199, no. 1, pp. 92–104, 2005.
7.
go back to reference Y. L. Lee, Y. R. Chu, W. C. Li, and C. S. Lin, “Effect of permanganate concentration on the formation and properties of phosphate/permanganate conversion coating on AZ31 magnesium alloy,” Corrosion Science, vol. 70, pp. 74–81, 2013. Y. L. Lee, Y. R. Chu, W. C. Li, and C. S. Lin, “Effect of permanganate concentration on the formation and properties of phosphate/permanganate conversion coating on AZ31 magnesium alloy,” Corrosion Science, vol. 70, pp. 74–81, 2013.
8.
go back to reference S.-Y. Jian, Y.-R. Chu, and C.-S. Lin, “Permanganate conversion coating on AZ31 magnesium alloys with enhanced corrosion resistance,” Corrosion Science, vol. 93, pp. 301–309, 2015. S.-Y. Jian, Y.-R. Chu, and C.-S. Lin, “Permanganate conversion coating on AZ31 magnesium alloys with enhanced corrosion resistance,” Corrosion Science, vol. 93, pp. 301–309, 2015.
9.
go back to reference M. Orban and I. R. Epstein, “Systematic design of chemical oscillators. 59. Minimal permanganate oscillator: the Guyard reaction in a CSTR,” Journal of the American Chemical Society, vol. 111, no. 22, pp. 8543–8544, 1989. M. Orban and I. R. Epstein, “Systematic design of chemical oscillators. 59. Minimal permanganate oscillator: the Guyard reaction in a CSTR,” Journal of the American Chemical Society, vol. 111, no. 22, pp. 8543–8544, 1989.
10.
go back to reference A. W. Adamson, “The Kinetics of the Manganous–Permanganate Reaction,” The Journal of Physical Chemistry, vol. 55, no. 2, pp. 293–303, 1951. A. W. Adamson, “The Kinetics of the Manganous–Permanganate Reaction,” The Journal of Physical Chemistry, vol. 55, no. 2, pp. 293–303, 1951.
11.
go back to reference K. Chiu, M. Wong, F. Cheng, and H. Man, “Characterization and corrosion studies of fluoride conversion coating on degradable Mg implants,” Surface and Coatings Technology, vol. 202, no. 3, pp. 590–598, 2007. K. Chiu, M. Wong, F. Cheng, and H. Man, “Characterization and corrosion studies of fluoride conversion coating on degradable Mg implants,” Surface and Coatings Technology, vol. 202, no. 3, pp. 590–598, 2007.
12.
go back to reference F. Tompkins, “The kinetics of the reaction between manganous and permanganate ions,” Transactions of the Faraday Society, vol. 38, pp. 131–139, 1942. F. Tompkins, “The kinetics of the reaction between manganous and permanganate ions,” Transactions of the Faraday Society, vol. 38, pp. 131–139, 1942.
13.
go back to reference M. Mrákavová and Ł. Treindl, “Kinetics of guyard’s reaction with regard to permanganate chemical oscillators,” Collection of Czechoslovak chemical communications, vol. 55, no. 12, pp. 2898–2903, 1990. M. Mrákavová and Ł. Treindl, “Kinetics of guyard’s reaction with regard to permanganate chemical oscillators,” Collection of Czechoslovak chemical communications, vol. 55, no. 12, pp. 2898–2903, 1990.
14.
go back to reference M. J. Polissar, “The kinetics of the reaction between permanganate and manganous ions,” The Journal of Physical Chemistry, vol. 39, no. 8, pp. 1057–1066, 1935. M. J. Polissar, “The kinetics of the reaction between permanganate and manganous ions,” The Journal of Physical Chemistry, vol. 39, no. 8, pp. 1057–1066, 1935.
15.
go back to reference J. Booster, A. Van Sandwijk, and M. Reuter, “Conversion of magnesium fluoride to magnesium hydroxide,” Minerals engineering, vol. 16, no. 3, pp. 273–281, 2003. J. Booster, A. Van Sandwijk, and M. Reuter, “Conversion of magnesium fluoride to magnesium hydroxide,” Minerals engineering, vol. 16, no. 3, pp. 273–281, 2003.
16.
go back to reference W. Zhou, D. Shan, E.-H. Han, and W. Ke, “Structure and formation mechanism of phosphate conversion coating on die-cast AZ91D magnesium alloy,” Corrosion Science, vol. 50, no. 2, pp. 329–337, 2008. W. Zhou, D. Shan, E.-H. Han, and W. Ke, “Structure and formation mechanism of phosphate conversion coating on die-cast AZ91D magnesium alloy,” Corrosion Science, vol. 50, no. 2, pp. 329–337, 2008.
17.
go back to reference Y. Huang, Y. Lee, and C. Lin, “Acid pickling pretreatment and stannate conversion coating treatment of AZ91D magnesium alloy,” Journal of The Electrochemical Society, vol. 158, no. 9, pp. C310–C317, 2011. Y. Huang, Y. Lee, and C. Lin, “Acid pickling pretreatment and stannate conversion coating treatment of AZ91D magnesium alloy,” Journal of The Electrochemical Society, vol. 158, no. 9, pp. C310–C317, 2011.
18.
go back to reference G. Song, A. L. Bowles, and D. H. StJohn, “Corrosion resistance of aged die cast magnesium alloy AZ91D,” Materials Science and Engineering: A, vol. 366, no. 1, pp. 74–86, 2004. G. Song, A. L. Bowles, and D. H. StJohn, “Corrosion resistance of aged die cast magnesium alloy AZ91D,” Materials Science and Engineering: A, vol. 366, no. 1, pp. 74–86, 2004.
Metadata
Title
Effect of Fluoride Ion on the Microstructure and Properties of Permanganate Conversion Coating on AZ91D Magnesium Alloy
Authors
Shih-An Yang
Chao-Sung Lin
Copyright Year
2018
DOI
https://doi.org/10.1007/978-3-319-72332-7_8

Premium Partners