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Alkali ortamda bakırın korozyonu üzerine askorbik asidin inhibitör davranışı

Inhibitor action of ascorbic acid on the corrosion of copper in alkaline medium

Journal Name:

  • Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi

Publication Year:

  • 2017
DOI: 
10.5505/pajes.2016.83702

Key Words:

Keywords (Original Language):

Author NameUniversity of AuthorFaculty of Author
Abstract (2. Language): 
In this study, the effect of Ascorbic acid in the corrosion behaviour of copper has been investigated in 3.5% NaCl solution (pH=9.0) using potentiodynamic polarization and electrochemical impedance spectroscopy (EIS). Current-potential curve and Nyquist diagrams were obtained in different concentrations of ascorbic acid. The surface morphology of copper after their exposure to 3.5% NaCl solution with and without of ascorbic acid was examined by scanning electron microscopy (SEM). The obtained results show that, ascorbic acid inhibits corrosion of copper in 3.5% NaCl solution. Inhibition activity was determined to increase with decrease in the concentration of ascorbic acid.
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Abstract (Original Language): 
Bu çalışmada, bakırın korozyon davranışlarına askorbik asidin etkisi %3.5 NaCl çözeltisinde (pH=9.0) potansiyodinamik polarizasyon ve elektrokimyasal impedans spektroskopisi kullanılarak araştırılmıştır. Askorbik asidin farklı derişimlerde akım-potansiyel eğrileri ve Nyquist eğrileri elde edilmiştir. Askorbik asit içeren ve içermeyen %3.5 NaCI çözeltilerinde bekletildikten sonra bakır elektrotun taramalı elektron mikroskopu (SEM) ile yüzey görüntüleri kaydedilmiştir. Elde edilen sonuçlardan askorbik asit %3.5 NaCl çözeltisinde bakırın korozyonunu engellemektedir. İnhibisyon etkinliğinin askorbik asit konsantrasyonundaki azalma ile arttığı tespit edilmiştir.
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  • Turkish

REFERENCES

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