| 苏里格大气田土壤湿度对Q235钢腐蚀行为的影响 |
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| 引用本文： | 王晶,宋义全,冯佃臣,李涛,李晓刚. 苏里格大气田土壤湿度对Q235钢腐蚀行为的影响[J]. 材料保护, 2009, 42(2) |
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| 作者姓名： | 王晶 宋义全 冯佃臣 李涛 李晓刚 |
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| 作者单位： | 内蒙古科技大学材料与冶金学院,内蒙古,包头,014010;北京科技大学腐蚀与防护中心,北京,100083 |
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| 基金项目： | 内蒙古自治区自然科学基金，国家自然科学基金，教育部春晖计划基础研究项目 |
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| 摘 要： | 土壤的干湿变化直接影响到土壤中金属材料的腐蚀.为此,应用失重法研究了土壤湿度对Q235钢在苏里格大气田土壤中腐蚀行为的影响,结合电镜、能谱等手段对腐蚀产物进行表征,并对腐蚀机理进行了初步探讨.结果表明:土壤湿度对Q235钢的腐蚀影响很严重,在湿度为10%时,出现最大腐蚀速率.腐蚀形貌观察发现Q235钢点腐蚀倾向较为严重;钢的腐蚀产物主要是铁的氧化物(Fe2O3,Fe3O4).
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| 关 键 词： | 土壤湿度 Q235钢 腐蚀行为 点腐蚀 腐蚀机理 |
Effect of Soil Humidity at Sulige Gas Field on Corrosion Behavior of Q235 Steel |
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| WANG Jing,SONG Yi-quan,FENG Dian-chen,LI Tao,LI Xiao-gang. Effect of Soil Humidity at Sulige Gas Field on Corrosion Behavior of Q235 Steel[J]. Journal of Materials Protection, 2009, 42(2) |
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| Authors: | WANG Jing SONG Yi-quan FENG Dian-chen LI Tao LI Xiao-gang |
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| Affiliation: | WANG Jing1,SONG Yi-quan1,FENG Dian-chen1,LI Tao1,U Xiao-gang2(1.School of Material , Metallurgy,Inner Mongolia University of Science , Technology,Baotou 014010,China,2.Corrosion , Protection Center,University of Science , Technology at Beijing,Beijing 100083,China) |
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| Abstract: | The effect of the soil of humidity at Sulige Gas Field on the corrosion behavior of Q235 steel was stud-ied using weight loss method.The composition and morphology of the corroded products were analyzed by means of scanning elec-tron microscopy and energy dispersive spectrometry.Results showed that soil humidity had a great impact on the corrosion be-havior of the steel,and the greatest corrosion rate was recorded for the steel at a soil humidity of 10%.Moreover,the Q235 steel was dominated by serious pitti... |
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| Keywords: | corrosion behavior Q235 steel soil humidity point corrosion corrosion mechanism |
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