The influence of chloride anions on the pitting corrosion of aluminum alloy en 46000

Authors

  • Branimir N. Grgur University of Belgrade, Faculty of Technology and Metallurgy, Serbia Author
  • Lazar Marunkić University of Belgrade, Faculty of Technology and Metallurgy, Serbia Author

DOI:

https://doi.org/10.5937/ZasMat1802243G

Keywords:

Corrosion, Central heating systems, Radiators, Critical potential

Abstract

The corrosion behavior of AlSi9Cu3 aluminum alloy, which is commonly used for manufacturing radiators of remote central heating systems, is investigated. The tendency for pitting corrosion is investigated in the phosphate buffer solution at pH = 7, in the sodium chloride anion concentration range 10-300 mg dm-3. The critical pitting potentials are estimated. The behavior of aluminum alloy and copper corrosion couple is also investigated.

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Published

15-06-2018

Issue

Vol. 59 No. 2 (2018)

Section

Articles