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[1]高彦才,董社霞,陆仁德,等.回火温度对2Cr13钢在H2S-CO2环境中腐蚀的影响[J].断块油气田,2020,27(03):404-408.[doi:10.6056/dkyqt202003027]
 GAO Yancai,DONG Shexia,LU Rende,et al.Effect of tempering temperature on corrosion resistance of 2Cr13 steel under H2S-CO2 coexistence environment[J].Fault-Block Oil and Gas Field,2020,27(03):404-408.[doi:10.6056/dkyqt202003027]
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回火温度对2Cr13钢在H2S-CO2环境中腐蚀的影响(PDF)
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《断块油气田》[ISSN:1005-8907/CN:41-1219/TE]

卷:
27
期数:
2020年03
页码:
404-408
栏目:
钻采工艺
出版日期:
2020-05-25

文章信息/Info

Title:
Effect of tempering temperature on corrosion resistance of 2Cr13 steel under H2S-CO2
coexistence environment
文章编号:
27
作者:
高彦才1董社霞1陆仁德1王亚彬2董宝军2柳伟2
1.中海油田服务股份有限公司油田生产事业部,天津 300450;2.北京科技大学新材料技术研究院,北京 100083
Author(s):
GAO Yancai1 DONG Shexia1 LU Rende1 WANG Yabin2 DONG Baojun2 LIU Wei2
1.Oil Production Division, China Oilfield Service Limited, Tianjin 300450, China; 2.Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China
关键词:
Cr13钢正火处理回火处理H2S-CO2腐蚀失重法测试电化学测试
Keywords:
2Cr13 steel normalizing treatment tempering treatment H2S-CO2 corrosion weight-loss test electrochemical test
分类号:
TE257
DOI:
10.6056/dkyqt202003027
文献标志码:
A
摘要:
为了研究回火温度对2Cr13钢在H2S-CO2环境中腐蚀的影响,首先分析了3种热处理状态下2Cr13钢的显微组织,再利用失重法测试了2Cr13钢在不同回火温度下的腐蚀速率,利用表面形貌法观测了2Cr13钢的腐蚀产物形貌及产物组成,最后利用电化学方法分别测试了3种热处理后2Cr13裸钢和在H2S-CO2环境中腐蚀72 h后试样的动电位极化曲线。结果表明:在正火状态下2Cr13钢的显微组织为富Cr铁素体加粒状未溶碳化物,600,700 ℃回火处理的显微组织为板条马氏体加碳化物;3种热处理状态下,正火处理的2Cr13钢的耐H2S-CO2腐蚀性能显著;正火处理的2Cr13钢中的游离Cr质量分数高,在H2S-CO2环境中将生成完整、致密的腐蚀产物膜,而回火处理的2Cr13钢中的游离Cr质量分数降低,生成疏松的腐蚀产物膜。
Abstract:
In order to study the effect of tempering temperature on the corrosion resistance of 2Cr13 steel under H2S-CO2 coexistence environment, firstly, the microstructure of 2Cr13 after three heat treatment states was studied, and the corrosion rates at different tempering temperature of 2Cr13 steel were obtained by weight loss method. The morphology and product composition of the corrosion products of 2Cr13 steel were observed by surface morphology method. Finally, the polarization curves of bare steels and the samples corroded under H2S-CO2 environment for 72 h were tested with electrochemical method. The results show that the microstructure of 2Cr13 steel in normalized state is chrome-rich ferrite and granular undissolved carbide. The microstructure after tempering at 600 °C and 700 °C is lath martensite structure and carbide. Among the three tempering treatment states, the 2Cr13 steel treated in the normalized state has remarkable corrosion resistance to H2S-CO2. In the H2S-CO2 environment, the free Cr stored in the 2Cr13 steel after normalizing will form a complete and dense corrosion product film, while the Cr content in the 2Cr13 steel after tempering is reduced to form a loose corrosion product film.

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备注/Memo

备注/Memo:
收稿日期:2019-11-30;改回日期:2020-03-10。
第一作者:高彦才,男,1982年生,高级工程师,硕士,2008年毕业于中国石油大学(北京)油气田开发专业,现从事完井工艺与工具的研发与应用工作。E-mail:gaoyc2@cosl.com.cn。
通讯作者:柳伟,男,1970年生,副教授,博士,现从事油气与海洋腐蚀与防护的研究工作。E-mail:weiliu@ustb.edu.cn。
基金项目:国家自然科学基金项目“酸性湿气腐蚀中O2与H2S交互作用机制”(51571027)
更新日期/Last Update: 2020-05-21