Effect of Atmosphere on Duplex Oxide Formed on 9Cr Steel at 550 °C

Abstract:

Commercial F91 steel was exposed to atmospheric pressure CO₂ and laboratory air at 550 °C for exposure times up to 1000 h. In both atmospheres, a Fe-rich duplex oxide scale formed, but with different morphology, oxide phases and growth rates. In CO₂, the duplex morphology was observed at the onset of oxidation and it was found that the cooling rate affect the oxide phases formed on the outer scale. In air, the alloy initially formed a protective chromium rich oxide layer, followed by the nucleation and growth of duplex iron-rich oxide nodules at random locations, leading to breakaway oxidation. Alloy carburization was also observed in CO₂ but not in air environment.

• Periodical: Key Engineering Materials (Volume 856)
• Pages: 15-20
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.856.15
• Online since: August 2020
• Authors: Mohammad Hassan Shirani Bidabadi*, Abdul Rehman, Yu Zheng, Liang Yang, Somrerk Chandra-ambhorn, Zhi Gang Yang
• Keywords: 9Cr Steels, Duplex Oxide Scale, High-Temperature Corrosion

References

[1] T. Kishi, Materials Outlook for Energy and Environment, New Material Science of the 21st Century towards the Solution of Energy and Environment Issues, 1st ed., National Institute for Materials Science (NIMS), Japan, (2008).

[2] T. Gheno, D. Monceau, J. Zhang, D.J. Young, Carburisation of ferritic Fe–Cr alloys by low carbon activity gases, Corros. Sci. 53 (2011) 2767-2777.

DOI: 10.1016/j.corsci.2011.05.013

[3] K. Kaya, S. Hayashi, S. Ukai, High-temperature Oxidation Behavior of 9Cr Ferritic-steel in Carbon Dioxide, ISIJ Int. 54 (2014) 1379-1385.

DOI: 10.2355/isijinternational.54.1379

[4] B.A. Pint, J.K. Thomson, Effect of oxy-firing on corrosion rates at 600–650 °C, Mater. Corros. 65 (2013) 132-140.

DOI: 10.1002/maco.201307194

[5] P. Promdirek, G. Lothongkum, S. Chandra-Ambhorn, Y. Wouters, A. Galerie, Oxidation Kinetics of AISI 441 Ferritic Stainless Steel at High Temperatures in CO2 Atmosphere, Oxid. Met. 81 (2014) 315-329.

DOI: 10.1007/s11085-013-9432-9

[6] F. Rouillard, G. Moine, L. Martinelli, J.C. Ruiz, Corrosion of 9Cr Steel in CO2 at Intermediate Temperature I: Mechanism of Void-Induced Duplex Oxide Formation, Oxid. Met. 77 (2012) 27-55.

DOI: 10.1007/s11085-011-9271-5

[7] D. Young, P. Huczkowski, T. Olszewski, T. Hüttel, L. Singheiser, W.J. Quadakkers, Non-steady state carburisation of martensitic 9–12%Cr steels in CO2 rich gases at 550°C, Corros. Sci. 88 (2014) 161-169.

DOI: 10.1016/j.corsci.2014.07.024

[8] A. Atkinson, Transport processes during the growth of oxide films at elevated temperature, Rev. Mod. Phys. 57 (1985) 437-470.

DOI: 10.1103/revmodphys.57.437

[9] G.O. Llyod, S.R.J. Saunders, B. Kent, A. Fursey, Breakaway oxidation of Fe 10%Cr and Fe20%Cr at temperatures up to 600°C, Corros. Sci. 17 (1977) 269-299.

DOI: 10.1016/0010-938x(77)90053-1

[10] M.H. Shirani Bidabadi, Z. Yu, A. Rehman, J.G. He, C. Zhang, H. Chen, Z.-G. Yang, High-Temperature Oxidation Behavior of CrMoV, F91 and Mar-M247 Superalloys Exposed to Laboratory Air at 550 °C, Oxid. Met. 90 (2018) 401-419.

DOI: 10.1007/s11085-018-9839-4

[11] M.H. Shirani Bidabadi, Y. Zheng, A. Rehman, C. Zhang, H. Chen, P. Hou, Z.-g. Yang, Oxidation behavior and lifetime prediction of three commercial alloys used in power plants at 550 °C in CO2 environment, J. Iron Steel Res. Int. 26 (2019) 898-908.

DOI: 10.1007/s42243-019-00232-y

[12] Y. Zheng, M.H. Shirani Bidabadi, L. Yang, A. Rehman, C. Zhang, H. Chen, Z.-G. Yang, Pre-oxidation Effect on Oxidation Behavior of F91 in Carbon Dioxide at 550 °C, Oxid. Met. 90 (2018) 317-335.

DOI: 10.1007/s11085-018-9850-9

[13] H.S. Hsu, The formation of multilayer scales on pure metals, Oxid. Met. 26 (1986) 315-332.

DOI: 10.1007/bf00659339

[14] M.R. Taylor, J.M. Calvert, D.G. Lees, D.B. Meadowcroft, The mechanism of corrosion of Fe-9%Cr alloys in carbon dioxide, Oxid. Met. 14 (1980) 499.

DOI: 10.1007/bf00603476

[15] W. Christi, A. Rahmel, M. Schütze, Behavior of oxide scales on 2.25Cr-1Mo steel during thermal cycling. I. Scales formed in oxygen and air, Oxid. Met. 31 (1989) 1-34.

DOI: 10.1007/bf00665485

[16] T.C. Totemeier, H. Tian, J.A. Simpson, Effect of normalization temperature on the creep strength of modified 9Cr-1Mo steel, Metall. Mater. Trans. A, 37 (2006) 1519-1525.

DOI: 10.1007/s11661-006-0096-9

[17] Z.J. Wang, F.H. Sun, G.W. Zhao, Optimization of Cutting Force by Exponential Model in Milling Heat-Resistant Steel F91, Advanced Materials Research. 53-54 (2008) 397-402.

DOI: 10.4028/www.scientific.net/amr.53-54.397

[18] Y. Zheng, M.H. Shirani Bidabadi, G. Wang, C. Zhang, H. Chen, Z. Yang, Coordination of Pre-oxidation Time and Temperature for a Better Corrosion Resistance to CO2 at 550 °C, Oxid. Met. 91 (2019) 657-675.

DOI: 10.1007/s11085-019-09901-5

[19] J. Ehlers, D.J. Young, E.J. Smaardijk, A.K. Tyagi, H.J. Penkalla, L. Singheiser, W.J. Quadakkers, Enhanced oxidation of the 9%Cr steel P91 in water vapour containing environments, Corros. Sci. 48 (2006) 3428-3454.

DOI: 10.1016/j.corsci.2006.02.002

[20] N. Mu, K.Y. Jung, N.M. Yanar, G.H. Meier, F.S. Pettit, G.R. Holcomb, Water Vapor Effects on the Oxidation Behavior of Fe–Cr and Ni–Cr Alloys in Atmospheres Relevant to Oxy-fuel Combustion, Oxid. Met. 78 (2012) 221-237.

DOI: 10.1007/s11085-012-9302-x