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Ternary interdiffusion coefficients in α2-phase Ti3Al/Nb system
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The ?2 single phase interdiffusion in Ti3Al-Nb ternary system was studied at
temperatures of 1323, 1373 and 1423 K. The interdiffusion coefficients were
calculated by the method of Dayananda. The average ternary interdiffusion
coeffcients were determined in the mid of the diffusion zone, and the trace
diffusion coefficients can be estimitaed in the limit cX?0. The obtained
main interdiffusion coeffcients is little smaller than privious reported and
the diffusion activation energy of Nb calculated by the trace diffusion
coefficients is 299.29 kJmol-1 accoding to the Arrhenius equation. These
results can provide a theoretical basis for the mechanisms of Nb improving
the oxidation resistance of Ti3Al.
National Library of Serbia
Title: Ternary interdiffusion coefficients in α2-phase Ti3Al/Nb system
Description:
The ?2 single phase interdiffusion in Ti3Al-Nb ternary system was studied at
temperatures of 1323, 1373 and 1423 K.
The interdiffusion coefficients were
calculated by the method of Dayananda.
The average ternary interdiffusion
coeffcients were determined in the mid of the diffusion zone, and the trace
diffusion coefficients can be estimitaed in the limit cX?0.
The obtained
main interdiffusion coeffcients is little smaller than privious reported and
the diffusion activation energy of Nb calculated by the trace diffusion
coefficients is 299.
29 kJmol-1 accoding to the Arrhenius equation.
These
results can provide a theoretical basis for the mechanisms of Nb improving
the oxidation resistance of Ti3Al.
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