Influence of Processing on Microstructure and Performance of Electron Beam Physical Vapor Deposition (EB-PVD) Thermal Barrier Coatings-Reference-Cited by-同舟云学术

Influence of Processing on Microstructure and Performance of Electron Beam Physical Vapor Deposition (EB-PVD) Thermal Barrier Coatings

Published:2002-03-26 Issue:2 Volume:124 Page:229-234
ISSN:0742-4795
Container-title:Journal of Engineering for Gas Turbines and Power
language:en
Short-container-title:

Author:

Schulz U.¹,Fritscher K.¹,Leyens C.¹,Peters M.¹

Affiliation:

1. DLR–German Aerospace Center, Institute of Materials Research, D-51170 Cologne, Germany

Abstract

The paper addresses the effect of processing parameters on microstructure and lifetime of electron beam physical vapor deposition, partially yttria-stabilized zirconia (EB-PVD PYSZ) coatings deposited onto NiCoCrAlY-coated Ni-base superalloys. In particular, the formation of a thermally grown oxide layer, an equi-axed zone, and various columnar arrangements of the highly textured PYSZ layers are discussed with respect to processing conditions. Three different microstructures were cyclically tested at 1100°C. The intermediate columnar structure was superior with respect to cyclic life times to a fine and to a coarse columnar structure which was mainly attributed to differences in the elastic properties. The effect of PYSZ microstructure on hot corrosion behavior of the thermal barrier coating (TBC) system at 950°C is briefly discussed.

Publisher

ASME International

Subject

Mechanical Engineering,Energy Engineering and Power Technology,Aerospace Engineering,Fuel Technology,Nuclear Energy and Engineering

Link

http://asmedigitalcollection.asme.org/gasturbinespower/article-pdf/124/2/229/5889733/229_1.pdf

Reference21 articles.

1. Schulz, U., Kro¨der, C., Brien, J., Schurmann, H., and Fritscher, K., 1999, U.S. Patent 6063435.

2. Leyens, C., Schulz, U., Pint, B. A., and Wright, I. G., 1999, “Influence of EB-PVD TBC Microstructure on Thermal Barrier Coating System Performance Under Cyclic Oxidation and Hot Corrosion Conditions,” Surf. Coat. Technol., 120–121, pp. 68–76.

3. Fritscher, K., Schulz, U., and Schmu¨cker, M., 1999, “EB-PVD TBC lifetime Response to Various Bond Coat Pretreatments,” Cyclic Oxidation of High Temperature Materials, M. Schu¨tze and W. J. Quadakkers, eds., The Institute of Materials, London, EFC public. No. 27, pp. 383–391.

4. Leyens, C; Wright, I. G., Pint, B. A., and Tortorelli, P. F., 1999, “Significance of Experimental Procedures on the Hot Corrosion Behavior of Nickel-Base Alloys Under Cyclic Conditions,” Cyclic Oxidation of High Temperature Materials, M. Schu¨tze and W. J., Quadakkers, eds., The Institute of Materials, London, EFC Pub. No. 27, pp. 169–186.

5. Szu¨cs, F., 1998, “Thermomechanische Analyse und Modellierung plasmagespritzter und EB-PVD aufgedampfter Wa¨rme-da¨mmschicht-Systeme fu¨r Gasturbinen,” Fortschr.-Ber. VDI Verlag Du¨sseldorf, Serial5, No. 518.

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