Abstract
Tracer diffusion of 48V in Fe-8–12%Cr alloys was measured by the serial sectioning method. The variation of Cr concentration in the range from 8 to 12 wt. % or addition of carbon up to 0.17 wt.%, or low alloying with other elements does not have any significant effect on the vanadium tracer diffusion coefficient. The temperature dependence of the diffusion coefficients shows the magnetic diffusion anomaly. It was fitted by semiempiric Eq.(5) proposed by Jönsson that can be taken as a convenient interpolation formula for rapid calculations of V diffisivities in 8–12 %Cr ferritic steels in engineering practice. The tracer diffusivities of vanadium are higher by a factor of about 1.8 than those of tungsten.
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