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Article

Investigation of Elastic Properties of the Single-Crystal Nickel-Base Superalloy CMSX-4 in the Temperature Interval between Room Temperature and 1300 °C

1
Faculty III Process Sciences, Institute of Material Sciences and Technology, Chair of Metallic Materials, Technische Universität Berlin, Sekr. BH18, Ernst-Reuter-Platz 1, 10587 Berlin, Germany
2
Department of Materials Engineering, Federal Institute for Materials Research and Testing (BAM), Unter den Eichen 87, 12205 Berlin, Germany
3
Institute Applied Materials, Helmholtz-Zentrum Berlin, for Materials and Energy, Hahn-Meitner-Platz 1, 14109 Berlin, Germany
4
All-Russian Institute of Aviation Materials (VIAM), Radio Str. 17, 105005 Moscow, Russia
*
Authors to whom correspondence should be addressed.
Academic Editors: Ronald W. Armstrong and Dmitry Lisovenko
Crystals 2021, 11(2), 152; https://doi.org/10.3390/cryst11020152
Received: 26 December 2020 / Revised: 19 January 2021 / Accepted: 26 January 2021 / Published: 2 February 2021
(This article belongs to the Special Issue Elasticity of Crystalline Materials)
The elastic properties of the single-crystal nickel-base superalloy CMSX-4 used as a blade material in gas turbines were investigated by the sonic resonance method in the temperature interval between room temperature and 1300 °C. Elastic constants at such high temperatures are needed to model the mechanical behavior of blade material during manufacturing (hot isostatic pressing) as well as during technical accidents which may happen in service (overheating). High reliability of the results was achieved using specimens of different crystallographic orientations, exciting various vibration modes as well as precise measurement of the material density and thermal expansion required for modeling the resonance frequencies by finite element method. Combining the results measured in this work and literature data the elastic constants of the γ- and γ′-phases were predicted. This prediction was supported by measurement of the temperature dependence of the γ′-fraction. All data obtained in this work are given in numerical or analytical forms and can be easily used for different scientific and engineering calculations. View Full-Text
Keywords: nickel-base superalloys; single-crystals; characterization; elastic constants nickel-base superalloys; single-crystals; characterization; elastic constants
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MDPI and ACS Style

Epishin, A.; Fedelich, B.; Finn, M.; Künecke, G.; Rehmer, B.; Nolze, G.; Leistner, C.; Petrushin, N.; Svetlov, I. Investigation of Elastic Properties of the Single-Crystal Nickel-Base Superalloy CMSX-4 in the Temperature Interval between Room Temperature and 1300 °C. Crystals 2021, 11, 152. https://doi.org/10.3390/cryst11020152

AMA Style

Epishin A, Fedelich B, Finn M, Künecke G, Rehmer B, Nolze G, Leistner C, Petrushin N, Svetlov I. Investigation of Elastic Properties of the Single-Crystal Nickel-Base Superalloy CMSX-4 in the Temperature Interval between Room Temperature and 1300 °C. Crystals. 2021; 11(2):152. https://doi.org/10.3390/cryst11020152

Chicago/Turabian Style

Epishin, Alexander, Bernard Fedelich, Monika Finn, Georgia Künecke, Birgit Rehmer, Gert Nolze, Claudia Leistner, Nikolay Petrushin, and Igor Svetlov. 2021. "Investigation of Elastic Properties of the Single-Crystal Nickel-Base Superalloy CMSX-4 in the Temperature Interval between Room Temperature and 1300 °C" Crystals 11, no. 2: 152. https://doi.org/10.3390/cryst11020152

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