| 温度对三种Cr钢腐蚀行为的影响 |
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| 引用本文： | 何连,刘贤玉,宋洵成,冯明,赵振宇.温度对三种Cr钢腐蚀行为的影响[J].腐蚀与防护,2017,38(5). |
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| 作者姓名： | 何连 刘贤玉 宋洵成 冯明 赵振宇 |
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| 作者单位： | 1. 中海石油(中国)有限公司湛江分公司,湛江,524057;2. 中国石油大学(华东),青岛,266580 |
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| 摘 要： | 利用高温高压釜模拟油田高CO_2分压和高矿化度的生产环境进行腐蚀试验,测定在不同温度条件下1Cr、3Cr和13Cr钢的腐蚀速率,利用扫描电镜(SEM)、X射线衍射仪(XRD)等手段分析了腐蚀产物形貌和成分。结果表明:1Cr、3Cr钢的腐蚀速率随温度升高先增大后减小,二者的腐蚀速率均在80℃达到最大值,分别为7.515mm/a和4.339mm/a;13Cr钢的腐蚀速率在温度低于110℃时随温度的升高缓慢增大,在温度高于110℃时腐蚀速率迅速增大;1Cr、3Cr油管钢在试验温度范围内均出现局部腐蚀,13Cr油管钢在整个试验的温度区间表现出优秀的耐蚀性。
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| 关 键 词： | CO2腐蚀 腐蚀速率 腐蚀产物 腐蚀形貌 温度 |
Effect of Temperature on Corrosion Behavior of 3 kinds of Cr Steel |
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| HE Lian,LIU Xianyu,SONG Xuncheng,FENG Ming,ZHAO Zhenyu.Effect of Temperature on Corrosion Behavior of 3 kinds of Cr Steel[J].Corrosion & Protection,2017,38(5). |
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| Authors: | HE Lian LIU Xianyu SONG Xuncheng FENG Ming ZHAO Zhenyu |
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| Abstract: | Corrosion test was carried out in simulated oilfield corrosion environment using an autoclave,and the corrosion rates of 1Cr,3Cr,13Cr steels were tested at different temperatures.The characteristics of samples were analyzed by X-ray diffraction and scanning electron microscopy.The results show that the maximum corrosion rate of 1Cr steel was 7.515 mm/a at 80 ℃;the maximum corrosion rate of 3Cr steel was 4.339 mm/a at 80 ℃.The corrosion rate of 13Cr steel increased with increasing the temperature,the corrosion rate increased rapidly when the temperature was higher than 110 ℃.1Cr and 3Cr steels exhibited more localized corrosion while 13 Cr steel showed the excellent corrosion resistance at different temperatures in the whole experiment. |
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| Keywords: | CO2 corrosion corrosion rate corrosion product corrosion morphology temperature |
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