【摘要】 在模拟油田CO2腐蚀环境下,进行Cr元素对P110钢耐腐蚀性能影响的实验。结果表明,Cr的加入没有改变温度对P110钢腐蚀特性的影响,两种钢的腐蚀速率都在90℃左右都达到最大值;温度对腐蚀具有双重作用,造成在温度小于90℃时表面形成的膜较疏松,保护性差,而温度大于90℃时,形成的膜和基体接触较为牢固,保护性强;钢中Cr元素的加入能有效地防止局部腐蚀的发生。更多还原

【Abstract】 The influence of Cr on corrosion behavior of P110 steel was studied in the simulated CO₂ environment.The result demonstrated that the Cr can’t change the effect of temperature on P110 steel corrosion.The corrosion rates of the two kinds of materials reached the peak at 90℃.The temperature has dual effects on corrosion,which caused the adhesive and productivity of corrosion product formed up 90℃ are better than that formed below 90℃;The adding of Cr in the P110 steel can prohibit the local corrosion to occur.更多还原