In-situ investigation of localized corrosion of aluminum alloys in chloride solution using integrated EC-AFM/SECM technique
2005 (English)In: Electrochemical and solid-state letters, ISSN 1099-0062, Vol. 8, no 6, B21-B24 p.Article in journal (Refereed) Published
Scanning electrochemical microscopy (SECM) has been integrated with electrochemical atomic force microscopy (EC-AFM), and applied for in situ studies of localized corrosion of Al alloys in NaCl solution. The instrument utilizes a dual mode probe, which functions both as a normal cantilever and as an ultramicroelectrode. The I-/I3- redox mediator was used for mapping of local electrochemical current. Concurrent topography and electrochemical activity maps have been obtained on the same surface area with micrometer lateral resolution. Preliminary results show ongoing localized dissolution related to intermetallic particles in the Al alloys, which may occur well below the breakdown potential.
Place, publisher, year, edition, pages
2005. Vol. 8, no 6, B21-B24 p.
Aluminum alloys; Atomic force microscopy; Intermetallics; Microstructure; Scanning electron microscopy; Sodium chloride
IdentifiersURN: urn:nbn:se:kth:diva-7852DOI: 10.1149/1.1911900ISI: 000229056000020ScopusID: 2-s2.0-20844438052OAI: oai:DiVA.org:kth-7852DiVA: diva2:12997
QC 201007022007-12-182007-12-182012-03-19Bibliographically approved