The impact of minor Cr additions in low alloy steel on corrosion behavior in simulated well environment
Abstract Low alloy steel samples with different Cr content (0‒3 wt%) have been exposed to simulated well environment. It is revealed that the 3%Cr sample initially has the highest corrosion resistance. However, due to faster formation of a FexCayCO3 protective scale in the 0%Cr sample, this sample d...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2023-08-01
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| Series: | npj Materials Degradation |
| Online Access: | https://doi.org/10.1038/s41529-023-00393-y |
| _version_ | 1797557558340222976 |
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| author | Kapil K. Gupta Saber Haratian Oleg V. Mishin Rajan Ambat |
| author_facet | Kapil K. Gupta Saber Haratian Oleg V. Mishin Rajan Ambat |
| author_sort | Kapil K. Gupta |
| collection | DOAJ |
| description | Abstract Low alloy steel samples with different Cr content (0‒3 wt%) have been exposed to simulated well environment. It is revealed that the 3%Cr sample initially has the highest corrosion resistance. However, due to faster formation of a FexCayCO3 protective scale in the 0%Cr sample, this sample demonstrates the highest corrosion resistance after 2 days of exposure. While the FexCayCO3 scale is also formed in the 1%Cr sample, the scale is weakly adhered and porous, which does not enable good corrosion resistance. Although the scale formation is delayed in a sample with 3 wt%Cr, once it is formed, the presence of Cr-rich phase in this scale provides greater long-term corrosion protection. Localized corrosion attack is observed in the samples with 0% Cr and 1%Cr, whereas the 3%Cr sample shows no sign of localized attack due to initial pre-passivation and the ability to rebuild the protective scale. |
| first_indexed | 2024-03-10T17:18:34Z |
| format | Article |
| id | doaj.art-c157c36385854049b28aac1f133b73ea |
| institution | Directory Open Access Journal |
| issn | 2397-2106 |
| language | English |
| last_indexed | 2024-03-10T17:18:34Z |
| publishDate | 2023-08-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj Materials Degradation |
| spelling | doaj.art-c157c36385854049b28aac1f133b73ea2023-11-20T10:26:10ZengNature Portfolionpj Materials Degradation2397-21062023-08-017111210.1038/s41529-023-00393-yThe impact of minor Cr additions in low alloy steel on corrosion behavior in simulated well environmentKapil K. Gupta0Saber Haratian1Oleg V. Mishin2Rajan Ambat3Section of Materials and Surface Engineering, Department of Civil and Mechanical Engineering, Technical University of DenmarkSection of Materials and Surface Engineering, Department of Civil and Mechanical Engineering, Technical University of DenmarkSection of Materials and Surface Engineering, Department of Civil and Mechanical Engineering, Technical University of DenmarkSection of Materials and Surface Engineering, Department of Civil and Mechanical Engineering, Technical University of DenmarkAbstract Low alloy steel samples with different Cr content (0‒3 wt%) have been exposed to simulated well environment. It is revealed that the 3%Cr sample initially has the highest corrosion resistance. However, due to faster formation of a FexCayCO3 protective scale in the 0%Cr sample, this sample demonstrates the highest corrosion resistance after 2 days of exposure. While the FexCayCO3 scale is also formed in the 1%Cr sample, the scale is weakly adhered and porous, which does not enable good corrosion resistance. Although the scale formation is delayed in a sample with 3 wt%Cr, once it is formed, the presence of Cr-rich phase in this scale provides greater long-term corrosion protection. Localized corrosion attack is observed in the samples with 0% Cr and 1%Cr, whereas the 3%Cr sample shows no sign of localized attack due to initial pre-passivation and the ability to rebuild the protective scale.https://doi.org/10.1038/s41529-023-00393-y |
| spellingShingle | Kapil K. Gupta Saber Haratian Oleg V. Mishin Rajan Ambat The impact of minor Cr additions in low alloy steel on corrosion behavior in simulated well environment npj Materials Degradation |
| title | The impact of minor Cr additions in low alloy steel on corrosion behavior in simulated well environment |
| title_full | The impact of minor Cr additions in low alloy steel on corrosion behavior in simulated well environment |
| title_fullStr | The impact of minor Cr additions in low alloy steel on corrosion behavior in simulated well environment |
| title_full_unstemmed | The impact of minor Cr additions in low alloy steel on corrosion behavior in simulated well environment |
| title_short | The impact of minor Cr additions in low alloy steel on corrosion behavior in simulated well environment |
| title_sort | impact of minor cr additions in low alloy steel on corrosion behavior in simulated well environment |
| url | https://doi.org/10.1038/s41529-023-00393-y |
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