J Mater Sci Technol ›› 2008, Vol. 24 ›› Issue (03): 427-432.

• Research Articles • Previous Articles    

Inhibition Behaviour of 2-butine1, 4diol and Tartrate Salt, and Their Synergistic Effects on Corrosion of AA3003 Aluminium Alloy in 0.5% NaCl Solution

Taghi Shahrabi, Alireza Yazdzad, Mirghasem Hosseini   

  1. Department of Materials Engineering, Faculty of Engineering, Tarbiat Modares University, Tehran, Iran
  • Received:2007-05-14 Revised:2007-12-14 Online:2008-05-28 Published:2009-10-10
  • Contact: Taghi Shahrabi

Abstract: This work intends to investigate the inhibition behaviour of 2-butine 1, 4diol and potassium sodium tartrate and their synergistic effects on 3003 aluminium alloy corrosion in 0.5% NaCl solution. Experiments were carried out by electrochemical impedance spectroscopy (EIS) and Tafel polarization method in a three-electrode cell. It was concluded that the inhibition efficiencies increased with an increase in the concentrations of inhibitors. For 2-butinel, 4diol and tartrate salt, the optimum in the inhibition efficiency, at room temperature and neutral pH, was observed for concentrations close to 10¡3 mol/L and 1.5×10-3 mol/L, respectively. The electrochemical results illustrated that 2-butine1, 4diol and tartrate salt, have significant synergistic inhibition effects on corrosion of 3003 aluminium alloy in 0.5% NaCl solution. The optimum ratio of concentrations for tartrate to alcohol was 2:1.

Key words: Inhibitor, 3003 aluminium alloy, 2-butine1, 4diol, Tartrate salt