| 均匀设计法研究环境因素对X120管线钢点蚀敏感性交互影响 |
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| 引用本文： | 余璐,黄峰,刘静,范丽霞,李晓刚.均匀设计法研究环境因素对X120管线钢点蚀敏感性交互影响[J].北京科技大学学报,2011,33(1):40-46. |
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| 作者姓名： | 余璐 黄峰 刘静 范丽霞 李晓刚 |
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| 作者单位： | 余璐,刘静,范丽霞,YU Lu,LIU Jing,FAN Li-xia(武汉科技大学材料与冶金学院钢铁冶金及资源利用省部共建教育部重点实验室,武汉,430081);黄峰,HUANG Feng(武汉科技大学材料与冶金学院钢铁冶金及资源利用省部共建教育部重点实验室,武汉,430081;北京科技大学材料科学与工程学院腐蚀与防护中心,北京,100083);李晓刚,LI Xiao-gang(北京科技大学材料科学与工程学院腐蚀与防护中心,北京,100083) |
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| 基金项目： | 国家自然科学基金资助项目，中国博士后科学基金资助项目 |
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| 摘 要： | 以Cl浓度、pH值和温度为三因素,通过均匀设计试验方法,采用动电位扫描技术研究了这三个环境因素对X120管线钢在HCO3-+Cl介质中点蚀电化学行为的交互影响.结果表明:Cl浓度、pH值和温度三因素对X120管线钢在HCO3-+Cl溶液中的腐蚀和钝化行为影响都较大,对其点蚀敏感性影响依次为Cl浓度>pH值>温度,且Cl-浓度与温度间存在交互作用,该交互作用对X120管线钢点蚀敏感性的影响程度介于Cl浓度和pH值之间;在Cl浓度为0mol·L-1、pH8.5、温度0℃的HCO3-+Cl溶液中,X120管线钢的点蚀敏感性最小.
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| 关 键 词： | 管线钢 环境因素 点蚀 动电位极化 |
Interactive influence of environmental factors on the pitting susceptibility of X120 pipeline steel studied by a uniform design method |
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| YU Lu,HUANG Feng,LIU Jing,FAN Li-xia,LI Xiao-gang.Interactive influence of environmental factors on the pitting susceptibility of X120 pipeline steel studied by a uniform design method[J].Journal of University of Science and Technology Beijing,2011,33(1):40-46. |
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| Authors: | YU Lu HUANG Feng LIU Jing FAN Li-xia LI Xiao-gang |
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| Institution: | YU Lu1),HUANG Feng1,2),LIU Jing1),FAN Li-xia1),LI Xiao-gang2)1)Key Laboratory of the Ministry of Education of China for Ferrous Metallurgy and Resources Utilization,School of Materials Science and Metallurgical Engineering,Wuhan University of Science and Technology,Wuhan 430081,China 2)Corrosion and Protection Center,School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China |
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| Abstract: | A uniform design experimental method was employed to discuss the interactive influence of Cl concentration,pH values and temperature on the pitting susceptibility of X120 pipeline steel in HCO-3+Cl solutions by a potentiodynamic scan technique.The experimental results indicate that Cl concentration,pH values and temperature have great effect on the corrosion and passive behavior of X120 pipeline steel in HCO-3+ Cl solutions,and the influence order is as follows:Cl concentration has the greatest impact,then ... |
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| Keywords: | pipeline steel environmental factors pitting potentiodynamic polarization |
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