Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 31830
Recent Advances in Energy Materials for Hot Sections of Modern Gas-Turbine Engines

Authors: Zainul Huda


This presentation reviews recent advances in superalloys and thermal barrier coating (TBC) for application in hot sections of energy-efficient gas-turbine engines. It has been reviewed that in the modern combined-cycle gas turbines (CCGT) applying single-crystal energy materials (SC superalloys) and thermal barrier coatings (TBC), and – in one design – closed-loop steam cooling, thermal efficiency can reach more than 60%. These technological advancements contribute to profitable and clean power generation with reduced emission. Alternatively, the use of advanced superalloys (e.g. GTD-111 superalloy, Allvac 718Plus superalloy) and advanced thermal barrier coatings (TBC) in modern gas-turbines has been shown to yield higher energy-efficiency in power generation.

Keywords: Energy materials, gas turbine engines, superalloy, thermal barrier coating

Digital Object Identifier (DOI):

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 2560


[1] Z. Huda, Metallurgical Failure Analysis for a Blade Failed in a Gas- Turbine Engine of a Power Plant; Materials and Design, 30 (2009) pp 3121 - 3125
[2] Z. Huda, "Development of Design Principles for a Creep-Limited Alloy for Turbine Blades' Journal of Materials Engineering & Performance; ASM International, 4 (1) (1995) pp. 48-53
[3] Z. Huda, "Development of Heat Treatment Process for a P/M Superalloy for Turbine Blades", Materials and Design, 28 (5) (2007) pp. 1664 -1667
[4] R. C. Reed, The Superalloys: Fundamentals and Applications: Cambridge University Press, (2006)
[5] W.-D. Cao, In: E.A. Loria, Editor, Superalloys 718, 625, 706 and Derivatives, The Minerals, Metals & Materials Society, Warrendale (2005), pp. 165-177
[6] U. Martin, M. Jerenz, U. M├╝hle, and H. Oettel, Microstructure and Modeling of the High Temperature Deformation Behavior of TBCCoated Superalloys, Materials Science and Engineering A, 319-321 (2001) pp. 388-392
[7] I. Gurrappa and R.A. Sambasiva, Thermal Barrier Coatings for Enhanced Efficiency of Gas Turbine Engines, Surface & Coatings Technology 201 (2006) pp. 3016 - 3029
[8] D. Stöver, C. Funke, Directions of the Development of Thermal Barrier Coatings in Energy Applications, J. Materials Processing Technology, 92-93 (1999) pp.195-202
[9] M.E. Miller and W.L. Chambers: In Superalloys II; Editors: C.T. Sims, N.S. Stoloff and W.C. Hagel; John Wiley & Sons, 1987
[10] D.M. Todd, "GE Combined Cycle Experience": 33rd GD Turbine Stateof- the-Art Tech Seminar, Paper No. GER-3585A, USA, (1989)
[11] G.A. Zickler, R. Schnitzer, R. Radis, R. Hochfellner, R. Schweins, M. Stockinger, and H. Leitner, "Microstructure and mechanical properties of the superalloy ATI Allvac® 718Plus™", Materials Science & Engineering A 523 (1-2) (2009) pp. 295-303
[12] S.A. Sajjadi and S. Nategh, A high-temperature deformation mechanism map for the high performance Ni-base superalooy: GTD-111; Materials. Science &. Engineering A, 307 (1-2) (2001), pp. 158-164
[13] S.A.Sajjadi, S. Nategh, and R.I.L. Guthrie, Study of microstructure and mechanical properties of high-performance Ni-base superalloy: GTD- 111; Mater. Sci. Eng. A 325 (2002), p. 484-489
[14] S.A. Sajjadi, S.M. Zebarjad, R.I.L Guthrie, and M. Isac; Microstructure evolution of high-performance Ni-base superalloy GTD-111 with heat treatment parameters; J. Materials Processing Technology, 175 (1-3) (2006) pp. 376-381