Chemical & Material
The single-crystal superalloys are often classified into first, second and third generation alloys. The second and third generations contain about 3 wt% and 6wt% of rhenium respectively. Rhenium is a very expensive addition but leads to an improvement in the creep strength and fatigue resistance. It is argued that some of the enhanced resistance to creep comes from the promotion of rafting by rhenium, which partitions into the γ and makes the lattice misfit more negative.…
- Types
- Cast · Wrought · Powder Metallurgy
- Applications
- Aerospace & Aircrafts · Land Base Gas Turbine · Others
5 editions20 December 2025
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