Al-Zn-In-Si-Mg合金活性溶解的临界氯离子浓度研究

Study on Cl^- Critical Concentration in Active Dissolution of Al-Zn-In-Si-Mg

通过测量不同Cl-浓度下Al-Zn-In-Si-Mg合金与A3钢偶合的电偶电流、孔蚀电位、极化电阻,确定了淡水中Al-Zn-In-Si-Mg牺牲阳极活性溶解的临界Cl-浓度.实验表明,维持Al-Zn-In-Si-Mg活性溶解的临界Cl-浓度为0.05～0.15mol/L.

Cl-critical concentration in active dissolution of Al-Zn-In-Si-Mg was determined by measuring the galvanic current, pit-corrosion potentials and polarization impedances. The results showed that Cl-critical concentration in dissolving Al-Zn-In-Si-Mg actively was between 0.05-0.15 molˇL-1.