郎经纬,杜晓东,金绍彤,王夫成,詹马骥,周丹,沈健,刘光复.FV(520)B 不锈钢在 CO2/H2S 共存条件下的腐蚀行为[J].表面技术,2016,45(7):30-35.
LANG Jing-wei,DU Xiao-dong,JIN Shao-tong,WANG Fu-cheng,ZHAN Ma-ji,ZHOU Dan,SHEN Jian,LIU Guang-fu.Corrosion Behavior of FV(520)B Stainless Steel in the Co-existence of CO2 and H2S[J].Surface Technology,2016,45(7):30-35 |
| FV(520)B 不锈钢在 CO2/H2S 共存条件下的腐蚀行为 |
| Corrosion Behavior of FV(520)B Stainless Steel in the Co-existence of CO2 and H2S |
| 投稿时间：2016-03-10 修订日期：2016-07-20 |
| DOI：10.16490/j.cnki.issn.1001-3660.2016.07.005 |
| 中文关键词: FV(520)B 不锈钢 硫化腐蚀 H2S CO2 |
| 英文关键词:FV(520)B stainless steel sulfidation corrosion hydrogen sulphide carbon dioxide |
| 基金项目:国家重点基础研究发展计划（2011CB013402） |
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| Author | Institution |
| LANG Jing-wei | School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China |
| DU Xiao-dong | School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China |
| JIN Shao-tong | School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China |
| WANG Fu-cheng | School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China |
| ZHAN Ma-ji | School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China |
| ZHOU Dan | School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China |
| SHEN Jian | School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China |
| LIU Guang-fu | School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China |
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| 中文摘要: |
| 目的 研究长输管线压缩机叶片材料 FV(520)B 不锈钢在高含 H2S、 H2O、 CO2 条件下的腐蚀行为。 方法 利用高温高压反应釜模拟特定工况，在 H2S 分压为 0.9 MPa、 CO2分压为 0.6 MPa、温度为150 ℃的条件下于 5 g/L 的氯化钠溶液中制备硫化腐蚀层，利用 XPS、 SEM、 XRD 等手段对腐蚀层的成分及结构进行分析。 结果 FV(520)B 不锈钢的腐蚀速率逐渐降低，试样表面粗糙度先增大后下降，腐蚀产物主要为 FeCO3、 Fe3O4、 FeS、 FeS2、 S、 Cr2S3、 Cr2O3和 Cr(OH)3。 结论 在腐蚀前期， FeS 的形成速率大于 FeS2、 S，腐蚀产物颗粒不断长大。形成完整的 Cr2O3、 Cr(OH)3 保护膜后，腐蚀得到抑制，此时腐蚀反应主要为 FeS2、 S 的生成，试样表面腐蚀产物颗粒尺寸变小，试样表面粗糙度降低。 |
| 英文摘要: |
| Objective To study the corrosion behavior of the blade material FV(520)B stainless steel of long pipeline compressor under special working conditions containing high H2S, H2O and CO2. Methods A high temperature and high pressure reaction kettle was used to simulate the specific working conditions. FV(520)B specimen was put in 5 g/L NaCl solution to prepare the sulfidation corrosion layer, the temperature was 150 ℃, the H2S partial pressure was 0.9 MPa and the CO2 partial pressure was 0.6 MPa. XPS, SEM and XRD were applied to investigate the composition and structure of the corrosion layer. Results When FV(520)B stainless steel was corroded under the above conditions, the corrosion rate gradually decreased, the surface roughness of the sample first increased and then decreased. The components of corrosion products were mainly FeCO3, Fe3O4, FeS, FeS2, S, Fe3O4, Cr2S3, Cr2O3 and Cr(OH)3. Conclusion In the early stage of corrosion, the formation rate of FeS was higher than those of FeS2 and S, and the corrosion products were growing up. In the late period of corrosion, because the complete protection film of Cr2O3 and Cr(OH)3 was formed, the corrosion was inhibited and the main reaction was the formation of FeS2 and S. The particle size of the corrosion products on the surface of the sample and the roughness were both reduced. |
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