Effects of Alkaline Treatment on Corrosion Behavior of Biodegradable Magnesium

Abstract:

Corrosion behavior of Magnesium substrate were investigated after NaOH treatment in different concentrations (1, 5, and 10 Molar) and duration of (10 min, 30 min, 1 h, 3 h, 6 h and 24 h) at room temperature to be utilized in biomaterial application. Creation of Mg(OH)₂ barrier layer after treatment enhanced corrosion resistance. X-Ray diffraction (XRD) was conducted to detect the existence of barrier layer. Potentiodynamic polarization and immersion tests were evaluated the corrosion behavior of Magnesium in Kokubo simulated body fluid (SBF). It is found that Magnesium treated by 1M NaOH for 30 min reveals higher corrosion resistance. In addition this investigation indicates that pH value of Kokubo SBF, strongly influenced by different time and concentration of alkaline treatment

• Periodical: Advanced Materials Research (Volume 1125)
• Pages: 441-444
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1125.441
• Online since: October 2015
• Authors: Mahtab Assadian, Mohd Hasbullah Idris*, Mohammad Mahdi Taheri, Mostafa Rezazadeh Shirdar, Davood Almasi
• Keywords: Corrosion Resistance, Immersion Test, Magnesium, NaOH Treatment

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