Local electrochemical study of friction stir welded aluminum alloy assembly
Language
en
Article de revue
This item was published in
Journal of electroanalytical chemistry and interfacial electrochemistry. 2015, vol. 737, p. 206-211
Elsevier
English Abstract
The friction stir welded (FSW) assembly of 2050-T8 and 7449-T79 was studied by local electrochemical techniques, namely SECM and LEIS, under non-corrosive and low corrosive conditions. During the FSW process, it generates ...Read more >
The friction stir welded (FSW) assembly of 2050-T8 and 7449-T79 was studied by local electrochemical techniques, namely SECM and LEIS, under non-corrosive and low corrosive conditions. During the FSW process, it generates different well defined microstructural zones giving rise to a galvanic coupling at their interfaces. SECM and LEIS measurements were carried out to investigate the local electrochemical behavior around these interfaces. SECM results clearly showed a change of the electrochemical kinetic on the passive layer between both materials in the different microstructural zones of the welded assembly whereas the LEIS techniques allowed the investigation of the interface on a larger scale.Read less <
English Keywords
Scanning electrochemical microscopy
FSW alloys assembly
Aluminum corrosion
Local electrochemical impedance spectroscopy
Origin
Hal imported