High Temperature Oxidation and Hot Corrosion Behavior of T92 Bare Steel Weldments and in Na2SO4-60%V2O5 Molten Salt Environment at 900°C


(*) Corresponding author


Authors' affiliations


DOI's assignment:
the author of the article can submit here a request for assignment of a DOI number to this resource!
Cost of the service: euros 10,00 (for a DOI)

Abstract


Hot corrosion is a serious problem in power plant, petro-chemical and marine applications where the weldments are usually subjected to aggressive corrosion environment. So the hot corrosion behavior has become main focus of the proposed work. High temperature oxidation and hot corrosion investigation has been carried out on SA213 T92 boiler steel weldment at the temperature of 9000C under cyclic condition for 50 cycles. Each cycle consisted of 1 hour heating at 900°C followed by 20 min of cooling in air. The experiment was conducted air as well as molten salt (40wt.% Na2SO4 + 60wt.%V2O5) environment. Comparison has been made between high temperature oxidation and hot corrosion performance of weldments to evaluate its suitability for using its boiler applications. Thermogravimetric technique was used to establish kinetics of corrosion. The result shows that the cyclic hot corrosion of weldment in salt environment follows parabolic law. X-ray diffraction (XRD) and scanning electron microscopy/energy dispersive X-ray (SEM/EDAX) techniques were used to characterize the oxide scales.


Copyright © 2014 Praise Worthy Prize - All rights reserved.

Keywords


Hot corrosion; T-92; 40wt.% Na2SO4 + 60wt.%V2O5 at 900°C

Full Text:

PDF


References


N. Eliaz, G. Shemesh, R.M. Latanision, Eng. Fail. Anal.9 (2002) 31.

R.J. Link, N. Birks, F.S. Pettit, F. Dethorey, The response of alloys to erosion–corrosion at high temperatures, Oxid. Met. 49 (3–4) (1998) pp.213–236.

G.E. Birchenall, “A brief history of the study of oxidation of metals and alloys, in: High temperature Corrosion”, Proceedings, NACE, San Diego, CA, 1981, 3.

D.A. Jones, “Principles and Prevention of Corrosion”, second ed.,Prentice Hall, USA, 1996.

P. Kofstad, “High-temperature Corrosion”,Elsevier Applied Science, London, 1988, pp. 382–385 (Chapter 11).

I. Saeki, T. Saito, R. Furuichi, M. Itoh, “Growth process of protective oxides formed on type 304 and 430 stainless steels at 1273°K”, Corros. Sci. 40 (8) (1998), 1295.

S. Jianian, Z. Longjiang, L. Tiefan, “High temperature oxidation of Fe–Cr alloys in wet oxygen”, Oxid. Met. 48 (3, 4) (1997), 347.

Z. Tokei, H. Viefhaus, H.J. Grabke, “Initial stages of oxidation of a 9CrMoV steel: role of segregation and martensite laths”, Appl. Surf. Sci. 165 (1) (2000), 23.

A.P. Greeff, C.W. Louw, H.C. Swart, “The oxidation of industrial FeCrMo steel”, Corros. Sci. 42 (10) (2000), 1725.

A. Arztegui, T. Gomez-Acebo, F. Castro, “Steam oxidation of ferritic steels: kinetics and microstructure”, Bol. Soc. Esp. Ceram. Vidr. 39 (3) (2000), 305.

A.S. Khanna, P. Rodriguez, J.B. Gananamoorthy, “Oxidation kinetics, breakaway oxidation, and inversion phenomenon in 9Cr–1Mo steels”, Oxid. Met. 26 (3, 4) (1986), 171.

J.E. Indacochea // Key Engineering Materials, Trans. Tech. publication 69-70 (1992) 47.

T.S. Sidhu, S. Prakash, R.D. Agrawal // Current Science 90 (2006) 41.

G. Kaushal, H. Singh, S. Prakash, Oxid Met (2011) 76, pp.169- 191.

Y. Kawahara, Recent Trends and Future Subjects on High- Temperature Corrosion-Prevention Technologies in High-Efficiency Waste-to Energy Plants, Corros. Eng., 2005, 54, p 213- 235

S. Natarajan, S.P. Kumaresh Babu, and M.Ramesh, Corrosion Behavior of GTA Welded 9Cr-1Mo Power Plant Steel, IWS Welding J., 2007, 3, p 44–49

S.P. Kumaresh Babu and S. Natarajan, Influence of Heat Input on High Temperature Weldment Corrosion in Submerged Arc Welded Power Plant Carbon Steel, J. Mater. Des. (Elsevier),2008, 29, p 1032–1042

B. Nasser, M. Bensafi, A. Mahmoudi, R. Soltani, A. Boutaleb, S. Boudraa, Experimental Study of the Behaviour of Welded Connections Under Cyclic Loading, (2008) International Review of Mechanical Engineering (IREME), 2 (2), pp. 256-261.

Rezakhani, D. (2007). Corrosion behaviours of several Thermal spray coatings used on boiler tubes at elevated temperatures. Anti-Corros. Method. M. 54(4): 237-243.

Dinesh Gonda, Vikas Chawlab, D. Puria, S.Prakash // Journal of Minerals and Materials Characterization and Engineering 9 (2010) 593.

Harpreet Singh, Devendra Puri, Satya Prakash //Rev. Adv Mater. Sci. 16 (2007) 27. [21]T.S. Sidhu, S. Prakash, R.D. Agrawal // Current Science 90 (2006) 41.

R. Kumar, V.K. Tewari, S. Prakash //Metallurgical and Materials Transaction A 38 (2007) 54.

Dionisio Laverde, Tomás Gómez-Acebo,Francisco Castro // Corrosion Science 46 (2004) 613.

Chun-Hao Koo, Ching-Yuan Bai, Yi-Jun Luo // Materials Chemistry and Physics 86 (2004) 258.

Hannachi, M.T., Djebaili, H., Mazouz, H., Evaluation of mechanical behaviour of welded induction of steel pipes, (2009) International Review of Mechanical Engineering (IREME), 3 (6), pp. 694-701.

Cuevas. C, Porcayo. J, Izquierdo. G., Corrosion Science 46, (2004): p. 2663.

Soo-Haeng. C, Jin-Mok. H, Chung_Seok. S, Ji-Sup. Y, Seong- won. P., Journal of Alloys and Compounds 468, (2009): p. 263.

N. Briks, G. Meier., “Introduction to high temperature oxidation of metals,” (Cambridge, Cambridge University Press, 2006): p. 306.

Essam E. Khalil, Combustion and Heat Transfer in Furnaces and Combustion Chambers, (2010) International Review of Mechanical Engineering (IREME), 4 (2), pp. 142-149.

Matthews. S, James. B, Hyland. M., Surface and Coatings Technology 203, (2009): p. 1086.

Abdel Salam Hamdy, E. El-Shenawy and T. El- Bitar. Int. J Electrochem. Sci., 1(2006)171-180.

Mohammed A. Amin, Sayed S. Abd El-Rehim, E.E. F. El- Sherbini, and Rady S. Bayoumi. Int. J. Electrochem. Sci., 3 (2008) 199 - 215

Noor, M.M., Wandel, A.P., Yusaf, T., MILD combustion: The future for lean and clean combustion technology, (2014) International Review of Mechanical Engineering (IREME), 8 (1), pp. 251-257.


Refbacks

  • There are currently no refbacks.



Please send any question about this web site to info@praiseworthyprize.com
Copyright © 2005-2024 Praise Worthy Prize