Temperature dependence of the lattice parameter of the γ and γ′ phases in the nickel-based superalloy CMSX-2 Part II: Neutron diffraction study of the lattice parameter mismatch
- 20 August 1991
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine Part B
- Vol. 64 (2) , 143-152
- https://doi.org/10.1080/13642819108207610
Abstract
High-resolution neutron diffraction measurements of the lattice parameter mismatch between the γ and γ′ phases of CMSX-2 superalloy are reported. Although the existence of a distribution around the lattice parameter value of each phase makes the interpretation difficult, the temperature dependence of the lattice mismatch has been deduced from room temperature to 1300°C, taking into account the tetragonal distortion of the γ′ phase. Some implications of the measurement for the behaviour of the superalloy are discussed.Keywords
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