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- Title
Application of a Heat Conductor Technique in the Production of Single-Crystal Turbine Blades.
- Authors
Ma, Dexin; Bührig-Polaczek, A.
- Abstract
The heat conductor (HC) technique was applied in the production of single-crystal turbine blades with the aim of reducing grain defects originating from a geometrical feature. Because of its excellent thermal-physical properties, graphite is recommended as HC material. Numerical simulation and temperature measurements were able to prove that the thermal condition in the shroud region of turbine blades is significantly improved for single-crystal growth. The reduction in thermal undercooling entirely eliminated the high-angle boundary, resulting in an effective improvement in the casting quality of components.
- Subjects
TURBINE blades; THERMAL conductivity; TURBINE generators; ELECTRIC generators; ELECTRIC power
- Publication
Metallurgical & Materials Transactions. Part B, 2009, Vol 40, Issue 5, p738
- ISSN
1073-5615
- Publication type
Article
- DOI
10.1007/s11663-009-9274-7