The influence of strontium (Sr) on the electrochemical response and corrosion of aluminum (Al) was studied over the range of 0 to 2.45 wt.% binary Sr additions. There is a paucity of prior information regarding the influence of Sr upon Al in any context, and the results herein revealed that corrosion attack is not predominantly associated with Sr containing phases, but rather Fe-rich constituents. Al4Sr intermetallic particles appear to be electrochemically homogeneous with the Al-matrix, which is both unique and important in the context of Al-alloy corrosion. The changes in corrosion rate with increasing Sr content are generally subtle, with a relative increase observed at approximately 0.1 wt.% Sr, followed by a reduction in corrosion rate with increasing Sr.
|Journal of the Electrochemical Society
|Published - 2013
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Renewable Energy, Sustainability and the Environment
- Surfaces, Coatings and Films
- Materials Chemistry