High temperature compression strength and oxidation of a V-9Si-13B alloy

Vanadium-based alloys are attractive relative to nickel base superalloys for high temperature applications due to significantly reduced density and increased melting temperatures. In this exploratory study, the compressive strength and oxidation behavior of a powder metallurgically processed V-Si-B multiphase alloy is examined. Results are compared to CMSX-4 and other existing vanadium alloys. Compressive yield strength is comparable to the nickel base superalloy at 1000 °C but the mass gain during isothermal oxidation at 600 °C is higher, implying the need for a protective coating for sustained high temperature exposure.

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