| 1. | The distinct anodic current peak was observed in the seawater containing srb . it was presumed that it was the result of electrochemical oxidation of sulfide
在接近自然腐蚀电位（ ecorr ）附近，出现了显著的阳极电流峰值，电流峰值是硫化物氧化的结果。 |
| 2. | Electrochemical tests show that the longer time is , the higher natural corrosion potential of the bare metal is . if corrosion time is long enough , the potential will go to a stable value
实验结果显示，新鲜金属的自腐蚀电位随时间的增加而逐渐增大，如果时间足够长，自腐蚀电位将趋于稳定的数值。 |
| 3. | In the state of galvanic couple , the couple potential of the bare metal quickly shifts towards positive direction , and to approach the stable natural corrosion potential of aluminum alloys after 40 seconds
耦合状态下，新鲜金属的耦合电位正向移动的速率极快，在40秒钟后已接近于铝合金稳定的自腐蚀电位。 |
| 4. | In neutral solution containing chloridions , the nc copper has a more positive corrosion potentialanodic polarization test revealed that the nc copper has a lower passivation potential , critical current density and passivation current density
Eds分析表明纳米晶铜蚀孔中的s和cl含量远高于表面。在中性含氯溶液中，纳米晶铜的腐蚀电位比微米晶铜高300mv 。 |
| 5. | From the varieties of the natural corrosion potential of aluminum alloys , it is deduced that the gradual dissolution of natural passive state film of the alloys brings about high - speed enhancement in the corrosion rate of the alloys
从自腐蚀电位的变化规律可以推断，在腐蚀的初期阶段，铝合金表面自然生成的钝化膜逐渐溶解，使铝合金腐蚀速率快速增加。 |
| 6. | Though membrane time arises to the antiseptic efficiency by way of reducing and corroding the density of the electric current and increasing the resistance of polarising to corroding the influence of the electric potential by oneself not big in advance
虽然预膜时间对自腐蚀电位的影响不大，但通过降低腐蚀电流密度和增大极化电阻的方式也起到了防腐功效。 |
| 7. | The corrosion potential was the biggest and the corrosion current was the smallest one when the concentration of super - 3900 was 0 . 5 % ; the corrosion potential was increased with the addition of mps - dl , but the smallest corrosion current is under 0 . 01 % mps - dl . the rust time was the longest one when the concentration of super - 3900 was 0 . 5 % as well as mps - dl was 0 . 01 % . it was increased as a peak curve with al2o3 concentration in plating solution and ph value increased gradually with cathodic current density ; the corrosion weight
通过测量tafel曲线可知,在super - 3900浓度为0 . 5 % (相对于镀液的体积百分含量)时获得的镀层腐蚀电位最正,腐蚀电流密度最小;随着镀液中mps - dl含量的增加,获得的镀层的腐蚀电位逐渐正移,在浓度为0 . 01 % (相对于镀液的体积百分含量)时腐蚀电流密度最小。 |
| 8. | In acid copper sulphate solution , the nc copper has a more negative corrosion potential which is decreasing with reducing the grain size and diffusion impedance was only found in the as - prepared and as - annealed at 180 ? nc copper due to the diffusion within the pores and channels on the surface . both the tafel plots and eis study demonstrated that the nc copper exhibits a higher corrosion current and lower polarization resistance than its mc couterpart
在酸性硫酸铜溶液中，纳米晶铜的腐蚀电位比微米晶铜要负，并且随着晶粒尺寸的减小而降低。 eis研究表明，未退火的和180退火的纳米样品中发现了扩散阻抗，与表面孔洞和通道中的扩散有关。极化曲线外推法和电化学阻抗研究都表明纳米晶铜的腐蚀电流比微米晶铜高，而极化电阻要低。 |
| 9. | The power supply module is made of sg3525a , which supply current for pipeline cp . the data collection module is made up of single chip , which collect the nature eroding voltage , protection voltage and current on the spot and transport these data to pc by com . pc constitutes master control module , which inspects work state of the whole cp system , control the system start and exit , display data out of the single chip
本系统采用sg3525a芯片构成开关电源模块，提供管线阴极保护电流；采用单片机系统做为数据采集模块，采集管线现场自然腐蚀电位、保护电位、保护电流等数据，并把采集的数据通过串行口送往pc机； pc机为主控模块监控整个电源系统的工作状态，控制整个模块的投入和退出，完成人机对话；利用显示器显示系统输出电压、电流。 |
| 10. | The variations of the surface state and environment conditions could change the procedure of exfoliation , therefore , the potentiometry and electric resistance methods in this paper are used to measure the exfoliation rate of aluminum alloys in a constant temperature , the experimental results show that relations of natural corrosion potential vs time have a resemblance to those of corrosion rate vs time , both relations are all at the different change rates in the front and back of 120 minutes
超硬铝合金表面状态、环境条件的变化，均可能改变剥蚀的发展过程，为此，本文提出在恒温条件下，用电位法、电阻法定量研究铝合金的剥蚀性能。实验结果显示了lc4cs铝合金的自腐蚀电位与时间的关系，和腐蚀速率与时间的关系有着十分相似的规律，两者均在120分钟前后有不同的变化。 |
