Influence of the microstructure on the corrosion behaviour of cast Mg-Al alloys

Grimm M, Lohmüller A, Singer RF, Virtanen S (2019)

Publication Type: Journal article

Publication year: 2019

Journal

Corrosion Science Elsevier

DOI: 10.1016/j.corsci.2019.04.024

Abstract

The influence of α-phase and β-phase (Mg 17 Al 12 )on corrosion of cast binary Mg-Al alloys was investigated by immersion testing in 5 wt.-% NaCl solution saturated with Mg(OH) 2 and by measuring the corrosion potential E corr . The microstructure of the alloys regarding Al-content of α-phase and amount of β-phase was adjusted by solution heat treatments at various temperatures. Subsequently the continuity of β-phase (C β )was measured. With increasing Al-content in the α-phase, the impact of C β decreases. The results show that the Al-content of the α-phase is a very important factor to influence the corrosion resistance.

Authors with CRIS profile

Sannakaisa Virtanen Professur für Werkstoffwissenschaften (Korrosion und Oberflächentechnik)

Involved external institutions

Neue Materialien Fürth GmbH DE Germany (DE)

How to cite

APA:

Grimm, M., Lohmüller, A., Singer, R.F., & Virtanen, S. (2019). Influence of the microstructure on the corrosion behaviour of cast Mg-Al alloys. Corrosion Science. https://dx.doi.org/10.1016/j.corsci.2019.04.024

MLA:

Grimm, Michael, et al. "Influence of the microstructure on the corrosion behaviour of cast Mg-Al alloys." Corrosion Science (2019).

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