This title appears in the Scientific Report :
2007
Please use the identifier:
http://dx.doi.org/10.1016/j.surfcoat.2007.06.044 in citations.
Temperature Dependence of Phase Relationships in Different Types of MCrAlY-Coatings
Temperature Dependence of Phase Relationships in Different Types of MCrAlY-Coatings
The phase compositions of different MCrAlY-coatings were studied in the temperature range of 800 to 1100 degrees C. For this purpose free-standing coatings were quenched after different annealing treatments and subsequently characterized with respect to their microstructures using XRD, TEM and SEM/E...
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Personal Name(s): | Toscano, J. |
---|---|
Gil, A. / Hüttel, E. / Wessel, E. / Naumenko, D. / Singheiser, L. / Quadakkers, W. J. | |
Contributing Institute: |
Werkstoffstruktur und Eigenschaften; IEF-2 JARA-ENERGY; JARA-ENERGY |
Published in: | Surface and coatings technology, 202 (2007) S. 11 - 18 |
Imprint: |
Amsterdam [u.a.]
Elsevier Science
2007
|
Physical Description: |
11 - 18 |
DOI: |
10.1016/j.surfcoat.2007.06.044 |
Document Type: |
Journal Article |
Research Program: |
Rationelle Energieumwandlung |
Series Title: |
Surface and Coatings Technology
202 |
Subject (ZB): | |
Publikationsportal JuSER |
The phase compositions of different MCrAlY-coatings were studied in the temperature range of 800 to 1100 degrees C. For this purpose free-standing coatings were quenched after different annealing treatments and subsequently characterized with respect to their microstructures using XRD, TEM and SEM/EDX. The experimental results were correlated with the calculations of phase equilibria using commercially available software (ThermoCalc) and dilatometric measurements of the physical coefficient of thermal expansion. The obtained results demonstrate that the thermal stability of the coating microstructure is sensitive to variations in major element contents in the range of just a few percent. Additionally, they can be used to estimate local temperature variations during service of real gas turbine components as well as for prediction of coating interdiffusion behavior with the superalloy components. (c) 2007 Elsevier B.V. All rights reserved. |