| Issue |
Rev. Met. Paris
Volume 101, Number 9, September 2004
Science et Génie des Matériaux
|
|
|---|---|---|
| Page(s) | 651 - 662 | |
| DOI | https://doi.org/10.1051/metal:2004116 | |
| Published online | 06 October 2004 | |
High temperature evolution of the microstructure of a cast cobalt base superalloy - Consequences on its thermomechanical properties
The prolonged holding at high temperature of certain cast cobalt base superalloys may lead to rarefaction and fragmentation of the tantalum carbides which harden these alloys. Room temperature hardness, thermal dilatation and high temperature tensile strength have been studied in relation with these processes. Only the thermal dilatation coefficient and the modulus of elasticity are really affected by the evolution of the tantalum carbides.
© La Revue de Métallurgie, 2004
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