阳极极化

Potentiodynamic polarization and electrochemical impedance spectroscopy techniques were applied to investigate the corrosion behavior of LY12CZ in 3% NaCl aqueous solution. The effects of stress to anodic polarization behavior, free corrosion potential, breakdown potential, polarization resistance and double-layer capacitance of LY12CZ were summarized.

利用动电位极化和电化学阻抗谱技术对应力加载下的LY12CZ铝合金在3% NaCl水溶液中的腐蚀行为进行了研究，考察了应力作用对LY12CZ在3% NaCl水溶液中的阳极极化行为、自腐蚀电位和破裂电位以及极化电阻和双电层电容大小的影响。

In this paper the concerted anticorrosion action of the hydrolyzate of egg and anodic protection on normal carbon steel is found by measuring the anodic passivation curve of normal carbon steel in 2 mol/L (NH 4) 2CO 3 solution,of different concentration of the hydrolyzate of egg s.

通过测定碳钢在含不同浓度鸡蛋水解物的2mol／L（NH4）2CO3溶液中的阳极极化曲线，发现了适当浓度的鸡蛋水解物与阳极保护对碳钢的协同缓蚀作用

This equation shows that, the anodic processes overpotential difference between the anode and cathode is an important factor for the corrosion process.

方程表明，在电池的阴极和阳极上，铁的阳极极化过电位差值，是影响氧浓差腐蚀过程的重要因素。

The results show that a MgSnO3·H2O conversion film is formed by treatment in the stannate solution at 90℃, and the immersion test and potentiodynamic polarization show that the corrosion resistance of the AZ91D alloy is improved to some extent.

结果表明：锡酸盐转化处理后合金表面形成了以MgSnO3·H2O为主要成分的转化膜，可对合金起到一定的防护作用；转化膜由细小的球形颗粒密积而成，颗粒之间存在间隙，它可以为化学镀镍的前处理过程提供良好的吸附条件；转化膜上的化学镀镍层组织致密、无缺陷， MgSnO3·H2O转化膜在镀镍层与基体之间起到过渡作用，镀层的磷含量达到9%，与基体结合良好；在3.5% NaCl (pH=7)溶液中的动电位极化测试表明，镀镍以后的合金在阳极极化过程中发生了明显的钝化，耐腐蚀性能进一步提高，对基体起到了较好的防护作用。

Of key interest was the trends of corrosion potential on initial period. Corrosion potential–time measurements were undertaken after the samples exposed to the air for 24 h were polarized anodically and cathodically in acetic acid solution. With analyzing of the curves of electrochemical polarization and SEM and EDS data of the samples ,corrosion and electrochemical behavior and mechanism of localized corrosion of 316L stainless steel in acetic acid solution with Cl- were discussed.

测试了空气中钝化24小时后、阴极极化后和阳极极化后，试样在醋酸溶液中自腐蚀电位随时间变化的曲线，结合阴极极化曲线、阳极极化曲线、试样的SEM微观观察和EDS成分分析，初步探讨了316L不锈钢在含Cl-醋酸溶液中的腐蚀电化学行为和点腐蚀发生的机理。

The results show that the samples exposed to the air previously for 24 h can be passivated automatically in acetic acid solution with Cl- with the corrosion potential remaining 100mV.No such phenomenon was observed for samples which were cathodically polarized with the corrosion potential stabilizing at a value of -242±3mv. The passive film formed by anodically polarizing is more proof than formed in the air.

研究还发现：在空气中放置24小时后的试样在Cl-醋酸溶液中能自钝化，自腐蚀电位为100mv；经阴极极化后的试样在Cl-醋酸溶液中不能自钝化，其自腐蚀电位为-242±3mv；经阳极极化形成的钝化膜比在空气中自然形成的钝化膜更致密。

In near-neutral pH solution, the cracking mode is transgranular with the feature of quasicleavage.The function of SCC factors are as follows:(1)The additional potential takes an important role in the SCC behavior of X70 pipeline steel: the susceptibility to SCC increased with decreasing cathodal potential,HIC is the dominant reason,the crackles on the surface are almost vertical to stress;On the country, at anodic potential,there is a critical potential,below which the dominant reason is anode-dissolving supported by hydrogen,and the crackles on the surface are not vertical to stress.

电位因素和环境因素的影响作用为：(1)在阴极极化电位区，SCC敏感性随电位的负移而增加，氢致开裂作用占主导，表面裂纹多与拉应力垂直；在阳极极化区间，存在阈值电位，低于阈值电位时，SCC为氢促进阳极溶解所致，表面裂纹多与主应力方向成一定角度。

The effect of pre-polarization for Pt electrode on the behavior of anodic electrochemiluminescence of luminol in alkaline solution was studied. It was found that the Pt electrode cathodically prepolarized in alkaline solution with dissolved oxygen could enhance the ECL peak at about 0.22Vvs.

研究了铂电极的不同预极化处理过程对碱性鲁米诺阳极电致化学发光和阳极极化曲线的影响，发现在碱性含氧溶液中预还原处理的铂电极可增强0.22Vvs。

A reasonable explanation was given to this phenomenon in terms of the mechanism of anodic dissolution and characteristics of CO〓 corrosion. The corrosion behavior of P110 steel at lower temperature and pressure showed that, the corrosion product film initially was thin and discontinuous, then with the increase of temperature and exposure time it became thicker and sludgy, at last a new crystalline film formed on the sludgy film.

阳极极化和自然腐蚀电位下的EIS谱随温度变化规律表明，在两种电位下，室温到90℃的温度范围内，都存在一个临界温度，低于CT，电化学阻抗谱表现为三个时间常数，高于CT，谱图为双容抗弧，从阳极反应机理和CO〓腐蚀特征出发对试验结果进行了解释。

The research shows that In has activation to Al, making its corrosive potential decrease, and increasing the rate of H2-evolutive simultaneously. The affiliating of Zn leads In and Al to alloying, reducing the rate of H2-evolutive, and passivating aluminum. The adhibiting of Bi helps to activate Al electrode, but gets up the rate of H2-evolutive. The existent of Pb passivates Al anode, restraining the H2-evolutive availably. After compounding these elements, the general performances of complex alloys are advanced by their conjunct functions farther.

结果表明，铟对铝阳极有活化作用，使铝的腐蚀电位发生负移，但同时也会加大析氢副反应的速度；锌的加入促进了铟的合金化，减少富铟偏析相的形成，而且能极大地降低铝阳极的析氢反应速率，使其钝化；铋的引入有助铝阳极活化，但同时又会导致析氢速率的提高；铅的存在使铝阳极钝化，有效地抑制了析氢反应，但加大了阳极极化。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。