Diffusion Coefficients for Modeling the Heat Treatment of Ti-6Al-4V.

Values of the diffusivity of aluminum and vanadium that can be used for engineering-oriented calculations of the diffusional growth of primary alpha during the heat treatment of Ti-6Al-4V were established using diffusion couples consisting of various Ti-Al-V alloys. After taking compositional influences into account using thermodynamic correction factors, the pertinent diffusivities in the ternary to be approximately 80 pct of those previously tracer or impurity (binary) diffusion experiments. [ABSTRACT FROM AUTHOR]

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