Progress on Facilities and Methodology to Evaluate Abradable Seal Coatings

Abstract:

To improve gas turbine performance, it is essential to decrease back flow gases in the high-temperature combustion region of the turbo machine by reducing the shroud/rotor gap. An abradable seal coating will function effectively. The present work described an advanced detection technology and test rigs to study abradability of the seal coatings. Several early used analytical methods were also reviewed in the work as comparison,like NASAPWA and Sulzer Innotec, have developed abradable test rigs and specified different experimental parameters by simulating the determined working conditions. Thence, suggestions to further develop evaluation methods for seal coatings were proposed and discussed.

• Periodical: Advanced Materials Research (Volumes 690-693)
• Pages: 1992-1998
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.690-693.1992
• Online since: May 2013
• Authors: Qiu Yuan Lu, Jie Shen, Yue Guang Yu, Xian Jing Ren, Hai Jun Xuan, Tong Liu
• Keywords: Abradability, Abradable Test Rig, Coating, Evaluation Method

References

[1] H. Wang, in: H. Henein, T. Oki (Eds.), Proceedings of the first International Conference on Processing Materials for Properties, Minerals, Metals and Materials Society, Honolulu County, Hawaii, (1993), p.1085

[2] E. R. Novinski, in: Proceeding of the 4th National Thermal Spray Conference, Pittsburgh (PA), 4–10 May, 1991.

[3] F. Ghasripoor, R. Schmid, M. Dorfman, Mater. World 5 (6) (1997) 328.

[4] H. I. Faraoun, T. Grosdidier, J. L. Seichepine, D. Goran, H. Aourag, C. Coddet, J. Zwick, and N. Hopkins: Surface and Coatings Technology. Vol. 201 (2006), p.2303

DOI: 10.1016/j.surfcoat.2006.03.047

[5] H. Faraoun, J. L. Seichepine, C. Coddet, H. Aourag, J. Zwick, N. Hopkins, D. Sporer, and M. Hertter: Surface and Coatings Technology. Vol. 200 (2006), p.6578

DOI: 10.1016/j.surfcoat.2005.11.105

[6] D. Sporer, and S. Wilson: Thermal Spray Vol. 143 (2012)

[7] R. C. Bill, and D. W. Wisander: NASA Technical (1978), p.1128.

[8] R. C. Bill, and L. P. Ludwig: Wear Vol. 59 (1980), p.165

[9] W. F. Laverty: Wear Vol. 75 (1982), p.1

[10] J. Stringer, and M. B. Marshall: Wear Vol. 294–295 (2012), p.257

[11] D. Sporer, M. Dorfman, L. Xie, and I. Giovannetti, in: The Preliminary Program for International Thermal Spray Conference and Exposition, Beijing (May 14-16), (2007)

[12] Information on http://www.sulzer.com/

[13] M. Z. Yi, and X. L. Zhang: Acta Aeronautica et Astronautica Sinica, Vol. 20 (1999) p.249, (In Chinese)

[14] S. Y. Gao, Y Liu: China Surface Engineering, Vol. 25 (2012) p.100, (In Chinese)