应用电化学测量技术研究了1Cr18Ni9Ti和316L在含硫 酸盐(SO2-4)的稀HCl介质中的腐蚀行为。极化曲线测量结果表明，SO2-4 能显著抑制1Cr18Ni9Ti的点蚀，而对316L的腐蚀有加速作用并降低其钝化性能。电化学阻抗 谱测量结果表明，不锈钢表面钝化膜的保护性随着温度升高而降低。
The corrosion behavior of 1Cr18Ni9Ti and 316L stainl ess steels had been investigated in dilute hydrochloric acid media containing su lfate by using electrochemical techniques.The polarization curves showed that th e pitting behavior of 1Cr18Ni9Ti was inhibited markedly by SO2-4 ions,wh ile the corrosion rate of 316L was accelerated by SO2-4 ions.The potenti ostatic polarization at 600 mV vs.SCE for 316L in 0.01 mol/L Na2SO4+0.01 mol /L HCl solution at 80℃ didn’t verify that the passive state had perfect stabil ity.The electrochemical impedance spectroscopy (EIS) measurements indicated that the protective performance of passive film on stainless steel surface decreased with increasing the temperature of the test solutions.
参考文献
| [1] |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%