CO2环境中P110钢阳极溶解过程EIS特征
CO2배경중P110강양겁용해과정EIS특정
EIS Characteristics of Anodic Dissolution for P110 Steel under CO2 Environment
  • 万方数据
    电化学 전화학

    2001年 1期 120-125 ,共6页

    李静%孙冬柏%俞宏英%李辉勤%孟惠民%杨德钧%路民旭%严密林%赵国仙

    리정%손동백%유굉영%리휘근%맹혜민%양덕균%로민욱%엄밀림%조국선

    CO2腐蚀%电化学阻抗%P110钢%阳极极化 CO2腐蝕%電化學阻抗%P110鋼%暘極極化
    CO2부식%전화학조항%P110강%양겁겁화
    研究了P110油管钢在CO2饱和的模拟油田采出液中，阳极极化下的EIS谱随温度的变化规律.结果表明：在低于90　℃的范围内，存在一个谱图转变临界温度，临界温度之下为三个时间常数型谱图，临界温度之上为两个时间常数型谱图.从阳极反应机理和CO2腐蚀特征出发对试验结果进行了解释.
    연구료P110유관강재CO2포화적모의유전채출액중，양겁겁화하적EIS보수온도적변화규률.결과표명：재저우90　℃적범위내，존재일개보도전변림계온도，림계온도지하위삼개시간상수형보도，림계온도지상위량개시간상수형보도.종양겁반응궤리화CO2부식특정출발대시험결과진행료해석.
    Effect of temperature on the electrochemical impedance spectroscopy for P110 steel at anodic polarized potential was investigated in simulated CO2- saturated oil produced water. The results demonstrated that in the range from room temperature to 90　℃, there was a critical temperature , below which a three-time -constant impedance spectrum was observed and above which a two-time -constant spectrum was shown. A reasonable explanation was given to this phenomenon in an effort to elucidate the mechanism of anodic dissolution and characteristics of CO2 corrosion.
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