采用电化学方法研究了X65/316L电偶对在模拟油田产出水环境中的电偶腐蚀行为。结果表明,在pH值为7.15的模拟油田产出水中,当阴阳极面积比为2、1和0.5时,电偶电位在-708～-735mV之间,随着阴阳极面积比的增大,电偶电位正移,阳极电偶电流密度增大,但阴极电偶电流密度的变化范围不大。（SCE）电偶腐蚀效应随阴阳极面积比的增大而增大。阴阳极面积比为1时,电偶电流密度随pH值的减小而增大。
The galvanic corrosion behavior of X65 coupled with 316L stainless steel in simulated production water was investigated by electrochemical methods.The results show that when the area ratios of X65/316L were 2,1 and 0.5,the couple potentials of X65 and 316L in the simulated production water with pH 7.15 were in the range of-708 mV to-735 mV（SCE）.When the area ratio increased,the anodic galvanic current density increased,while the cathodic galvanic current density almost was not changed.The galvanic effect increased with increasing the cathode/anode area ratio.When the area ratio was 1∶1,the galvanic current density increased with decreasing the pH value.
参考文献
| [1] | C. M. Abreu;M. J. Cristobal;M. F. Montemor;X. R. Novoa;G. Pena;M. C. Perez .Galvanic coupling between carbon steel and austenitic stainless steel in alkaline media[J].Electrochimica Acta,2002(13/14):2271-2279. |
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