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High temperature corrosion behavior of superalloy GH984G in synthetic flue gases environments

G.M. Liu, S.P. Ren
2015 Proceedings of the 5th International Conference on Advanced Design and Manufacturing Engineering   unpublished

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KEYWORD: USC boiler; GH984G; high temperature corrosion; flue gas ABSTRACT: High temperature corrosion behavior of Ni-Fe-based Superalloy GH984G was studied in the synthetic flue gas environments with different SO2 concentration at 800˚C. The microstructure and composition of the scales were investigated by scanning electron microscope/energy dispersive spectroscope and X-ray diffraction. The Cr2O3-rich scale with a mount of TiO2 formed on the sample surface. With the SO2 increasing, corrosion
more » ... ecame serious and more TiO2 was detected in the scale. Sulfides could be detected even the SO2 concentration decreased to 0.5%.
doi:10.2991/icadme-15.2015.127 fatcat:mi5huzm7ibfuvdrizqoyeiypdm
Citation

G.M. Liu, S.P. Ren. "High temperature corrosion behavior of superalloy GH984G in synthetic flue gases environments." Proceedings of the 5th International Conference on Advanced Design and Manufacturing Engineering (2015)