[1]张思琦,赵国仙,王映超,等.CO2、H2S对3Cr钢静态腐蚀的影响[J].焊管,2023,46(6):7-13.[doi:10.19291/j.cnki.1001-3938.2023.06.002]
 ZHANG Siqi,ZHAO Guoxian,WANG Yingchao,et al.Effect of CO2、H2S on Static Corrosion of 3Cr Steel[J].,2023,46(6):7-13.[doi:10.19291/j.cnki.1001-3938.2023.06.002]
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CO2、H2S对3Cr钢静态腐蚀的影响()
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
46
期数:
2023年第6期
页码:
7-13
栏目:
试验与研究
出版日期:
2023-06-28

文章信息/Info

Title:
Effect of CO2、H2S on Static Corrosion of 3Cr Steel
文章编号:
10.19291/j.cnki.1001-3938.2023.06.002
作者:
张思琦赵国仙王映超郭梦龙宋洋
1. 西安摩尔石油工程实验室股份有限公司,西安 710065; 2. 西安石油大学,西安 710065
Author(s):
ZHANG Siqi ZHAO Guoxian WANG Yingchao GUO Menglong SONG Yang
1. Xi’an Maurer Petroleum Engineering Laboratory Co., Ltd., Xi’an 710065, China;2. Xi’an Shiyou University, Xi’an 710065, China
关键词:
3Cr钢CO2/H2S腐蚀腐蚀速率极化曲线
Keywords:
3Cr steel CO2/H2S corrosion corrosion rate polarization curve
分类号:
TG174.3
DOI:
10.19291/j.cnki.1001-3938.2023.06.002
文献标志码:
A
摘要:
为了研究3Cr钢在不同CO2、H2S腐蚀介质中耐蚀性,对3Cr钢分别在1 MPa CO2、0.3 MPa H2S 及1 MPa CO2+ 0.3 MPa H2S腐蚀环境中的腐蚀速率和电化学性能进行测试,同时采用SEM、EDS和XRD等手段对上述三种腐蚀环境中的腐蚀产物进行分析对比。结果表明,3Cr钢在1 MPa CO2环境下腐蚀速率最大,通过对腐蚀产物进行分析,发现其表面未形成连续分布且具有致密性腐蚀产物保护膜是其腐蚀速率高的主要原因。电化学测试发现3Cr钢EIS阻抗在1 MPa CO2中呈现单容抗弧,而在0.3 MPa H2S和1 MPa CO2+0.3 MPa H2S环境中呈现双容抗弧,进一步印证了其在1 MPa CO2环境中耐蚀性较差的结果。
Abstract:
In order to study the corrosion resistance of 3Cr steel in different CO2 and H2S corrosion media, the corrosion rate and electrochemical performance of 3Cr steel were tested in 1 MPa CO2, 0.3 MPa H2S, and 1 MPa CO2+0.3 MPa H2S corrosion environments. SEM, EDS and XRD were used to analyze and compare the corrosion products in the three corrosion environments mentioned above.The results show that the corrosion rate of 3Cr steel is the highest under 1 MPa CO2 environment.Through analysis of corrosion products, it was found that the main reason for its high corrosion rate is the lack of continuous distribution and dense corrosion product protection film on its surface. In electrochemical testing, it was found that the EIS impedance of 3Cr steel exhibits a single capacitive arc at 1 MPa CO2, while it exhibits a double capacitance arc resistance at 0.3 MPa H2S and 1 MPa CO2+0.3 MPa H2S environments, further confirming its poor corrosion resistance in 1 MPa CO2 environment.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2022-11-15作者简介:张思琦(1997—),女,山西原平人,硕士,主要从事石油管道的腐蚀与防护研究。
更新日期/Last Update: 2023-06-30