High-Temperature Corrosion Behavior of Different Regions of Weldment of 2.25Cr-1Mo Steel in SO2 + O2 Atmosphere
IR@CMERI: CSIR- Central Mechanical Engineering Research Institute (CMERI), Durgapur
View Archive Info| Field | Value | |
| Title |
High-Temperature Corrosion Behavior of Different Regions of Weldment of 2.25Cr-1Mo Steel in SO2 + O2 Atmosphere
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| Creator |
Ghosh, D.
Shukla, A.K. Mitra, S.K. Satpati, B. |
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| Subject |
Materials
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| Description |
This paper investigates the corrosion behavior of different regions of weldment of 2.25Cr-1Mo steel exposed in mixed oxidation and sulfidation (SO2 + O2) environment up to 500 h at 773 K. Microstructural investigation and characterization of oxide scales are done using SEM, TEM, and XRD. The obtained results infer that heat-affected zone corrodes faster than both base and weld metal. The reaction kinetics follows a parabolic growth rate for all regions. The higher corrosion rate of heat-affected zone is attributed to the formation of Cr23C6 secondary precipitates leading to depletion of protective inner scale of the Cr-rich oxide during welding.
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| Publisher |
Springer
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| Date |
2016-02
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| Type |
Article
PeerReviewed |
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| Identifier |
Ghosh, D. and Shukla, A.K. and Mitra, S.K. and Satpati, B. (2016) High-Temperature Corrosion Behavior of Different Regions of Weldment of 2.25Cr-1Mo Steel in SO2 + O2 Atmosphere. Journal of Materials Engineering and Performance, 25 (2). pp. 421-430.
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| Relation |
http://cmeri.csircentral.net/376/
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