Abstract
The prevalence of in-service failures in the welds of chromium-molybdenum ferritic steels causes great concern in steam generating/handling systems of power plants, and components of petroleum/petrochemical industries. This paper is a review of the non-uniform scaling behaviour across microstructural gradients in weldments of pressure vessel steels in order to develop a global model for life-assessment by relating oxide scale thickness with time-temperature history of in-service components. The paper also investigates gaseous corrosion-assisted deterioration of the weldment microstructure.
Original language | English |
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Pages (from-to) | 585-590 |
Number of pages | 6 |
Journal | International Journal of Pressure Vessels and Piping |
Volume | 79 |
Issue number | 8-10 |
DOIs | |
Publication status | Published - 1 Aug 2002 |
Keywords
- 2.25%Cr-1%Mo steels
- Life assessment
- Oxide scales
- Steam environment