Inhibitory Action of Persian Pyrifoliabark Extract against Corrosion of SAE 1020 Carbon Steel in Sodium Chloride Medium
Autor: | D. Borges, Everson do Prado Banczek, L.F.G. Larsson, Danielle Cristina Silva Oliszeski, Carine Vieira |
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Rok vydání: | 2020 |
Předmět: |
Materials science
Carbon steel 020209 energy Mechanical Engineering Sodium chemistry.chemical_element 02 engineering and technology engineering.material 021001 nanoscience & nanotechnology Condensed Matter Physics Inhibitory postsynaptic potential Electrochemistry Corrosion chemistry Mechanics of Materials 0202 electrical engineering electronic engineering information engineering engineering General Materials Science 0210 nano-technology Nuclear chemistry |
Zdroj: | Materials Science Forum. 1012:390-394 |
ISSN: | 1662-9752 |
Popis: | Carbon steel is one of the most commonly used alloys in industrial applications due to its physicochemical properties and low cost. However, the use of this metal material may become limited due to its vulnerability to corrosion. Thus, it is necessary to use methods that inhibit corrosion. Organic compounds with heteroatoms possess the characteristic of inhibiting corrosion by forming a protective film. The corrosion protection of SAE 1020 carbon steel, promoted by the aqueous extract of Persea pyrifolia (PP) bark, was evaluated in this work at extract concentrations of 5% and 10% v/v, in order to replace an inhibitor of synthetic origin with an ecologically benign inhibitor. Plant extracts are generally inexpensive and can be obtained through simple extraction processes. The objective of this work was to study the use of PP peel extract as a carbon steel corrosion inhibitor (SAE 1020). The electrochemical response was determined by measurements including electrochemical impedance spectroscopy (EIS) and anodic potentiodynamic polarization (PPA) in a 0.5 M sodium chloride medium. The samples were characterized by optical microscopy to evaluate the type of corrosion. |
Databáze: | OpenAIRE |
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