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Slow positron beam study of corrosion behavior of AM60B magnesium alloy in NaCl solution.
- Source :
-
Corrosion Science . May2016, Vol. 106, p271-280. 10p. - Publication Year :
- 2016
-
Abstract
- The corrosion behavior of super vacuum die-cast AM60B magnesium alloys immersed in a 5 wt% NaCl solution was investigated by slow positron beam technique, XRD, XPS, SEM and potentiodynamic polarization tests. The XRD and XPS results indicated that Mg(OH) 2 was main corrosion product in the salt solution. With prolonging the immersion time, a significant decrease of Doppler-broadened annihilation line-width parameter near the surface after corrosion was observed and interpreted that the pre-existing interfacial voids between oxide film and matrix might promote the formation of Mg(OH) 2 corrosion layer. Polarization tests found that Mg(OH) 2 could provide a temporary protection. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0010938X
- Volume :
- 106
- Database :
- Academic Search Index
- Journal :
- Corrosion Science
- Publication Type :
- Academic Journal
- Accession number :
- 113868841
- Full Text :
- https://doi.org/10.1016/j.corsci.2016.02.012