Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5439891 | Corrosion Science | 2017 | 35 Pages |
Abstract
In the present work the electrochemical corrosion behaviour of iron aluminide single crystals from a binary Fe3Al alloy in 0.5 M H2SO4 containing naturally dissolved O2 was investigated. The single crystal samples used in the experiments had surface orientations parallel to the low-index planes (100), (110) and (111) and were analysed by potentiodynamic polarization as well as electrochemical impedance spectroscopy. The results obtained showed that corrosion rates followed the trend (100) < (110) â (111). Examination of the corroded surfaces revealed the presence of distinct patterns on each single crystal which indicated that the dissolution process was influenced by surface crystallography.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Pedro Brito, Ãrica Schuller, Josafá Silva, Thais Roberta Campos, Carlos Roberto de Araújo, José Rubens Carneiro,