采用动电位极化法和交流阻抗法研究了X80钢焊接接头在抚顺地区土壤溶液、雨水和雪水中的腐蚀行为，利用光学显微镜观察了腐蚀形貌。结果表明：X80钢焊接接头母材和焊缝试样在3种腐蚀溶液中的极化曲线均表现出典型的活化溶解特性，在土壤溶液、雨水和雪水中的极化电阻和弥散指数均依次升高，即腐蚀速率依次降低，表面膜致密性依次升高；X80钢焊接接头在3种腐蚀溶液中的耐腐蚀性能由好到差依次为雪水、雨水、土壤溶液，在同种腐蚀溶液中焊缝试样的耐腐蚀性能优于母材试样的。
The corrosion behaviors of X80 steel welded joint in soil solution,rain water and snow water in Fushun area were investigated by the potentiodynamic polarization and electrochemical impedance spectroscopy,and then the corrosion morphology was observed by optical microscope.The results show that the polarization curves of the base material sample and weld sample from X80 steel welded joint exhibited typical active dissolution characteristics in the three corrosive solutions.The polarization resistance and diffusion index of the samples increased in soil solution,rain water and snow water in turn,indicating the decrease of corrosion rate and the increase of surface film density in turn.The corrosion resistance of the X80 steel welded joint in the three corrosive solutions decreased in the order of snow water,rain water and soil solution.In the same corrosive solution,the corrosion resistance of the weld sample was better than that of the base material sample.
参考文献
| [1] | 赵博;杜翠薇;刘智勇;李晓刚;李月强.酸性土壤中的模拟滞留液溶液对X80钢腐蚀行为的影响[J].腐蚀与防护,2013(5):371-375,380. |
| [2] | 李继红;杨亮;张敏.X100管线钢焊接接头的显微组织和性能[J].机械工程材料,2014(2):59-62. |
| [3] | 梁平.镍磷化学镀层在北方重工业城市雪水中的耐蚀性[J].电镀与涂饰,2012(01):30-33. |
| [4] | 史艳华;梁平;刘峰.含氯融雪盐对汽车用镀锌钢腐蚀行为的影响[J].材料保护,2014(3):53-55. |
| [5] | 黄志潜.X80级管线钢在高压大流量输气管道上的应用与发展前景[J].焊管,2005(02):1-10. |
| [6] | 孙巧.X80管线钢用于国内输气管道工程[J].油气田地面工程,2013(06):130-130. |
| [7] | 陈旭;吴明;何川;肖军.外加电位对X80钢及其焊缝在库尔勒土壤模拟溶液中SCC行为的影响[J].金属学报,2010(8):951-958. |
| [8] | 王成祥;吴明;陈旭;肖军;王丹.X80钢及其焊缝组织在酸性土壤中的电化学行为[J].腐蚀与防护,2010(10):780-782. |
| [9] | 王炳英 .X80管线钢焊接管道应力腐蚀和断裂安全评定研究[D].天津大学,2007. |
| [10] | 李红英;康巍;胡继东;刘洋.X70和X80管线钢的电化学腐蚀行为[J].材料热处理学报,2011(10):151-158. |
| [11] | 慕立俊;张军;赵文轸;张春婉.J55钢在NaHCO3溶液中的腐蚀行为[J].机械工程材料,2010(8):15-17. |
| [12] | 易俊兰;刘明辉;陈洁;吴松林;赵亮亮;宋袁曾.Alodine 1200S化学转化处理时间对新型2198铝锂合金耐蚀性能的影响[J].腐蚀与防护,2012(10):884-888. |
| [13] | 谢飞;吴明;陈旭;王丹;胡宗柳;刘勇峰.SO42-对X80管线钢在库尔勒土壤模拟溶液中腐蚀行为的影响[J].中南大学学报（自然科学版）,2013(1):424-430. |
| [14] | 赵博;杜翠薇;刘智勇;李晓刚;杨吉可;李月强.剥离涂层下的X80钢在鹰潭土壤模拟溶液中的腐蚀行为[J].金属学报,2012(12):1530-1536. |
| [15] | 杜翠薇;刘智勇;梁平;贾改风;李晓刚.不同组织X70钢在库尔勒含饱和水土壤中的短期腐蚀行为[J].金属热处理,2008(6):80-84. |
| [16] | Hamadou L;Kadri A;Benbrahim N.Characterisation of passive films formed on low carbon steel in borate buffer solution (pH 9.2) by electrochemical impedance spectroscopy[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,20055(5):1510-1519. |
| [17] | X80管线钢在水饱和碱性沙土中的腐蚀行为[J].机械工程材料,2011(8):58-61. |
| [18] | 李辉辉;胥聪敏.X100管线钢在库尔勒土壤模拟溶液中的腐蚀行为[J].机械工程材料,2014(3):75-79. |
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