The structure and magnetic properties of a heat-resistant nickel-base alloy after a high-temperature deformation

The structure of a turbine blade made of the ChS-70V alloy has been studied after operation in an experimental regime at 880°C. A considerable change in the structural state of the alloy indicates the presence of an extremely high level of stresses in the material. During the operation, the magnetic...

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Bibliographic Details
Published in:Physics of metals and metallography 2011-09, Vol.112 (3), p.309-317
Main Authors: Stepanova, N. N., Davydov, D. I., Nichipuruk, A. P., Rigmant, M. B., Kazantseva, N. V., Vinogradova, N. I., Pirogov, A. N., Romanov, E. P.
Format: Article
Language:English
Subjects:
Analysis
Chemistry and Materials Science
Gas-turbines
Heat resistant alloys
Intermetallic compounds
Magnetic properties
Materials Science
Metallic Materials
Nickel alloys
Specialty metals industry
Strength and Plasticity
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Summary:The structure of a turbine blade made of the ChS-70V alloy has been studied after operation in an experimental regime at 880°C. A considerable change in the structural state of the alloy indicates the presence of an extremely high level of stresses in the material. During the operation, the magnetic susceptibility of the alloy increases by two orders of magnitude. The possible structure objects responsible for a change in the magnetic susceptibility are the complexes of superstructure intrinsic stacking faults inside the intermetallic phase.
ISSN:0031-918X
1555-6190
DOI:10.1134/S0031918X11030288