Effect of Severe Plastic Deformation, through Equal-Channel Angular Press Processing, on the Electrochemical Behavior of Al5083 Alloy

In this study, Al5083 alloy was deformed through equal-channel angular pressing (ECAP) up to three passes. The ECAP was conducted at room temperature in a mold using route C. The microstructure evolution was investigated under optical microscopic observations. The grain size was measured using Image...

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Bibliographic Details
Published in:Applied sciences 2020-11, Vol.10 (21), p.7776
Main Authors: Seikh, Asiful H., Baig, Muneer, Ur Rehman, Ateekh
Format: Article
Language:English
Subjects:
Alloys
Aluminum
aluminum alloy 5083
Behavior
Corrosion
Corrosion effects
Corrosion resistance
Corrosion tests
Deformation effects
ECAP
Electrochemical analysis
Electrochemical impedance spectroscopy
Electrochemistry
Electrode polarization
Electrodes
Equal channel angular pressing
Grain refinement
Grain size
Microstructure
Morphology
Plastic deformation
potentiodynamic polarization
Raman spectroscopy
Room temperature
Scanning electron microscopy
Shear strain
Silicon wafers
Sodium chloride
Spectroscopy
Spectrum analysis
Surface properties
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Summary:In this study, Al5083 alloy was deformed through equal-channel angular pressing (ECAP) up to three passes. The ECAP was conducted at room temperature in a mold using route C. The microstructure evolution was investigated under optical microscopic observations. The grain size was measured using ImageJ software. Grain refinement from 145 µM (as received) to 37 µM (after third pass) was observed due to ECAP. The potentiodynamic polarization of the Al5083 alloy was obtained from a 3.5% sodium chloride solution. Electrochemical impedance spectroscopy was performed in the sodium chloride solution to study the alloy’s surface properties. Scanning electron microscopy and Raman spectroscopy were conducted after obtaining the corrosion performance. As a result, we found that ECAP processing leads to the grain refinement of the alloy, which causes a detrimental effect on the corrosion resistance property.
ISSN:2076-3417
2076-3417
DOI:10.3390/app10217776