Thermal conductivity of cobalt-base alloys

From: Metallurgical and Materials Transactions | Date: September 1, 2003| Author: | Copyright information

Thermal conductivity is one of the important physical properties for high-performance materials at elevated temperatures.[1,2,3] High thermal conductivity is desirable for the materials to avoid degradation by local heating. A material with a low thermal conductivity is incapable of averaging out the heterogeneous temperature distribution often encountered in operation, which causes degradation by oxidation, local melting, etc.

Cobalt-base superalloys are currently used for gas-turbine vanes because of a combination of higher melting temperatures, good weldability, excellent hot-corrosion ...

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