| 管线钢在干湿交替环境下的腐蚀 |
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| 引用本文： | 任呈强,李丽,王煦,刘丽,刘涛.管线钢在干湿交替环境下的腐蚀[J].腐蚀与防护,2011(4):272-275,280. |
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| 作者姓名： | 任呈强 李丽 王煦 刘丽 刘涛 |
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| 作者单位： | 西南石油大学材料科学与工程学院;长庆油田油气工艺研究院; |
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| 基金项目： | 西南石油大学中青年学术骨干教师计划与校级自然科技基金(2007XJZ036) |
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| 摘 要： | 在模拟土壤的NS4溶液中,采用腐蚀失重、极化曲线和产物形貌观察等方法研究了X80钢在干湿交替环境下的腐蚀行为.结果表明,腐蚀速率随干/湿交替时间比降低先增加后减小,当干/湿交替时间比为9 h/15 h时,腐蚀速率最高,为全浸腐蚀速率的1.8倍;在此条件下,腐蚀速率随pH值增大而降低;随着Cl-浓度增大,腐蚀速率先降低后...
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| 关 键 词： | 干湿交替 管线钢 土壤 腐蚀 |
Corrosion of Pipeline Steel in Dry and Wet Alternative Environment |
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| REN Cheng-qiang,LI Li,WANG Xu,LIU Li,LIU Tao.Corrosion of Pipeline Steel in Dry and Wet Alternative Environment[J].Corrosion & Protection,2011(4):272-275,280. |
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| Authors: | REN Cheng-qiang LI Li WANG Xu LIU Li LIU Tao |
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| Affiliation: | REN Cheng-qiang,LI Li,WANG Xu,LIU Li,LIU Tao (1.School of Materials Science and Engineering,Southwest Petroleum University,Chengdu 610500,China 2.Oil & Gas Technology Research Institute,Changqing Oilfield Company,Xi'an 710018,China) |
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| Abstract: | Corrosion behaviors of X80 steel in alternating wet and dry environment were studied by the means of weight loss,electrochemical polarization curves and morphology observation in the NS4 solution.The results showed that the corrosion rate first increased and then decreased with decreasing the time ratio of dry to wet.When the time ratio of dry to wet was 9 h/15 h,the corrosion rate reached 0.56 mm/a which was 1.8 times of the corrosion rate under the condition of full immersion.Under the condition of interv... |
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| Keywords: | wet-dry alternating pipeline steel soil corrosion |
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