| 温度对X65/316L机械复合管焊接接头CO2腐蚀的影响 |
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| 引用本文： | 虞毅,徐连勇,韩永典,张念涛,许可望.温度对X65/316L机械复合管焊接接头CO2腐蚀的影响[J].焊接技术,2011,40(5):9-12. |
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| 作者姓名： | 虞毅 徐连勇 韩永典 张念涛 许可望 |
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| 作者单位： | 1. 海洋石油工程股份有限公司建造公司,焊接试验室,天津,300452
2. 天津大学,材料科学与工程学院,天津,300072 |
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| 摘 要： | 在模拟CO2腐蚀环境中,采用高温高压釜对复合管内层不锈钢焊接接头的CO2腐蚀行为进行了试验研究.结果表明,焊接接头随着腐蚀温度的升高,腐蚀产物膜上微孔越来越多,腐蚀速率随温度升高不断增加.通过EDS分析结果可知,复合管内层发生CO2腐蚀的产物可能为FeCO3和Cr2O3的混合物.经去膜后,焊接接头经不同温度腐蚀后为均匀...
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| 关 键 词： | CO2腐蚀 复合管 焊接接头 EDS |
Effect of temperature on the CO_2 corrosion behavior of welded joint in X65/316L mechanical clad pipe |
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| YU Yi,XU Lian-yong,HAN Yong-dian,ZHANG Nian-tao,XU Ke-wang.Effect of temperature on the CO_2 corrosion behavior of welded joint in X65/316L mechanical clad pipe[J].Welding Technology,2011,40(5):9-12. |
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| Authors: | YU Yi XU Lian-yong HAN Yong-dian ZHANG Nian-tao XU Ke-wang |
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| Affiliation: | YU Yi1,XU Lian-yong2,HAN Yong-dian2,ZHANG Nian-tao1,XU Ke-wang1(1.Welding Lab,Construction Company,Offshore Oil Engineering Co.,Ltd.,Tianjin 300452,China,2.School of Materials Science and Engineering,Tianjin University,Tianjin 300072,China) |
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| Abstract: | The CO2 corrosion behavior of clad pipe welded joint was studied by high temperature and high pressure autoclave in the simulated CO2 environment.The results revealed that the corrosion rate and micro pits in corrosion product layer increased with the increasing temperature.The corrosion product layer might be FeCO3 and Cr2O3 according to the EDS analysis results.After removing the corrosion product layer,the surface of the welded joint under different temperature was uniform and bright.No local or pitting ... |
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| Keywords: | CO2 corrosion clad pipe welded joint EDS |
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