维钝电流密度

随着pH值的升高，5083铝合金自腐蚀电位负移，维钝电流密度增大，钝化区范围扩大，但点蚀电位变化不大。

The corrosion potential of aluminum alloy 5083 shifted negatively , passive current density increased and the passivation region broadened , but the pitting potential changed little with the increase of pH value .

结果表明，随着氯离子浓度的增加，316L不锈钢的维钝电流密度逐渐增加，点蚀击破电位逐渐降低。

The results showed that the passive current density increased and the pitting potential gradually decreased with the increase of [ Cl - ] .

在0-72h内，随着浸泡时间的延长，由极化曲线可以发现，维钝电流密度逐渐降低、点蚀电位逐渐升高。

Within 0-72h , the stainless steel was measured with polarization curve , the maintaining passivity current density is gradually decreased and pitting potential gradually increased following the extension of immersion time .

但随着Cl-离子浓度增大，其维钝电流密度也增大。

However with the increase of Cl - concentration , the passivation current density increases , too .

添加11%时，涂层的维钝电流密度开始迅速降低，耐蚀性下降明显。

With addition of 11 % , the dimensional passive current density of the coating decreased rapidly ,, and accordingly .

研究了扫描速率对临界钝化电流密度、维钝电流密度及稳定钝化区的影响。

The effect of Scanning Speed on Critical Passivity Current density , dimensional Passivity Current density and stable Passivation region Was researched .