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Gupta, Kapil Kumar
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Topics
Publications (10/10 displayed)
- 2024CO2 corrosion resistance of low-alloy steel tempered at different temperaturescitations
- 2023Ex‐situ synchrotron X‐ray diffraction study of CO2 corrosion‐induced surface scales developed in low‐alloy steel with different initial microstructurecitations
- 2023Ex‐situ synchrotron X‐ray diffraction study of CO2 corrosion‐induced surface scales developed in low‐alloy steel with different initial microstructurecitations
- 2023The impact of minor Cr additions in low alloy steel on corrosion behavior in simulated well environmentcitations
- 2022Effect of Microstructure of Low-Alloy Steel on Corrosion Propagation in a Simulated CO2 Environmentcitations
- 2022On CO 2 corrosion resistance of low carbon steels in the formation water chemistry: The impact of Cr content as an alloying element
- 2022On CO2 corrosion resistance of low carbon steels in the formation water chemistry: The impact of Cr content as an alloying element
- 2022Investigation of Steel Alloy Chemistry, Microstructure, and Surface Finish on Oil field Corrosion and Scaling
- 2021Advanced complementary methods for characterization of the CO 2 -induced corrosion scale formation on steels: Synchrotron X-ray diffraction and X-ray computed tomography
- 2021Advanced complementary methods for characterization of the CO2-induced corrosion scale formation on steels: Synchrotron X-ray diffraction and X-ray computed tomography
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article
CO2 corrosion resistance of low-alloy steel tempered at different temperatures
Abstract
The microstructure and corrosion resistance in a CO2-saturated salt solution have been examined for a low-alloy steel subjected to different tempering treatments. It is found that corrosion resistance increases with increasing tempering temperature from 300°C to 600°C. Tempering at the different temperatures affects the formation of the corrosion scale. Comparing different samples after corrosion tests, iron oxy-hydroxide chloride is found to be more prevalent in the sample tempered at 600°C. This sample also demonstrates delayed development of a semi-protective iron carbonate layer. Cementite produced by high-temperature tempering enables increased retention of Fe2+ ions and thus restoration of dissolved scale.