【摘要】 为了表征六次甲基四胺(HMTA)对AZ31镁合金在MgSO4溶液中的缓蚀性能,用线性电位扫描、电化学阻抗谱等方法研究了合金在溶液中的电化学行为。结果表明,少量HMTA的加入能使AZ31镁合金的开路电位正移,极化电阻增大,从而发挥缓蚀效果。HMTA的添加量在0.1~0.15mmol/L范围时具有较好的缓蚀性能,并使活化电位负移,确保合金具有较好的电化学活性。更多还原

【Abstract】 The inhibiting ability of hexamethylenetetramine(HMTA) to AZ31 magnesium alloy was studied by linear sweep voltammetry(LSV) and electrochemical impedance spectroscopy(EIS).The results show that a small quantity of HMTA can make the open circuit potential more positive,polar resistance bigger,which means the HMTA has inhibiting ability to AZ31.The inhibiting ability is better when the concentration of HMTA is between 0.1～0.15mmol/L.更多还原