A lap joint simulant laboratory test method of aluminium alloys

6533b833fe1ef96bd129cad8

RESEARCH PRODUCT

A lap joint simulant laboratory test method of aluminium alloys

Roland Oltra Alexandre Zimmer T. M. L. Le

subject

Mass transport Materials science Mechanical Engineering Metallurgy Metals and Alloys Laboratory Test Method chemistry.chemical_element General Medicine Surfaces Coatings and Films Corrosion Lap joint chemistry Mechanics of Materials Aluminium Electrode Materials Chemistry Environmental Chemistry Composite material

description

A lap joint simulant cavity (LJSC) with a gap thickness of 200 μm has been developed to test corrosion of assembled coated aluminium alloys. The LJSC was instrumented with electrodes allowing simultaneous pH and potential measurements in 0.5 M NaCl solution. Assuming the outer part of the LJSC is electrochemically inactive (painted sheet) it was confirmed that in free corroding conditions the pH inside the LJSC tends more towards alkalinisation. On the opposite, if the outer part of the LJSC is electrochemically active (unpainted sheet) the pH inside the LJSC tends towards an acidic value.

year	journal	country	edition	language
2015-05-19	Materials and Corrosion

https://doi.org/10.1002/maco.201508320

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