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    刘永丹, 刘海浪, 王宝健. X65钢在不同温度CO2酸性溶液中的腐蚀行为[J]. 机械工程材料, 2009, 33(1): 70-72.
    引用本文: 刘永丹, 刘海浪, 王宝健. X65钢在不同温度CO2酸性溶液中的腐蚀行为[J]. 机械工程材料, 2009, 33(1): 70-72.
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    LIU Yong-dan, LIU Hai-lang, WANG Bao-jian. Corrosion Behavior of X65 Steel in CO2 Acidic Solution at Different Temperature[J]. Materials and Mechanical Engineering, 2009, 33(1): 70-72.
    Citation: LIU Yong-dan, LIU Hai-lang, WANG Bao-jian. Corrosion Behavior of X65 Steel in CO2 Acidic Solution at Different Temperature[J]. Materials and Mechanical Engineering, 2009, 33(1): 70-72.
    shu

    X65钢在不同温度CO2酸性溶液中的腐蚀行为

    Corrosion Behavior of X65 Steel in CO2 Acidic Solution at Different Temperature

      摘要
    • 摘要: 将X65钢放在高压釜内于60~150 ℃、1 MPa的CO2酸性溶液中进行72 h腐蚀,用XRD、EPMA、SEM和失重法等方法分析了腐蚀产物的形貌﹑物相组成和腐蚀速率.结果表明:X65钢在60,90,120和150 ℃的腐蚀速率分别为10.97,3.70,8.37和18.97 mm·a-1;60 ℃时在腐蚀表面不生成FeCO3保护膜,腐蚀较严重;90 ℃时生成细小致密的FeCO3保护膜,腐蚀较轻;120 ℃时生成细小松散的FeCO3保护膜,腐蚀较严重;而150 ℃时生成粗大不紧密的FeCO3保护膜,所以腐蚀最严重.

       

      Abstract: X65 steel specimens were tested in an acidic solution containing CO2 with a pressure of 1 MPa at 60-150 ℃ for 72 h in an autoclave.XRD,EPMA,SEM and weight-loss methods were used to analyze the corrosion products and corrosion rates.The results showed that the corrosion rates at 60 ℃,90 ℃,120 ℃ and 150 ℃ were 10.97,3.70,8.37 and 18.97 mm·a-1 respectively.Protective films of FeCO3 were not generated at 60 ℃ resulting in serious corrosion.Fine and compact protective films of FeCO3 were formed at 90 ℃ and reduced the corrosion rate markedly.The FeCO3 films were relatively fine but scattered at 120 ℃ and were coarse and loose at 150 ℃ and thus increased the corrosion rate.

       

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