Abstract
The grain boundary diffusivities sδD b of 48V in binary Fe-Cr alloys with 8–12 wt.% Cr, in a ternary Fe-8Cr-0.17C alloy and in two commercial modifications of 8% Cr ferritic steels were measured by the serial sectioning method in the temperature range 743 – 1103 K. A variation of the Cr concentration in the range 8–12 wt.% does not influence the value of sδD b . The GB diffusivity of vanadium in steels of commercial purity is about four times slower than in the materials prepared of pure constituents.
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