Diffusion of ⁵¹Cr in vanadium

Abstract

The temperature dependence of D in the range 1420–1870 K is found to be satisfactorily linear. The equation for the straight line through the data by applying a least-squares analysis is

The low-temperature diffusion equation in the range 1173–1473 K was given by Wolfe and Paxton in 1964 without any information on the experimental data. The diffusion coefficient of ⁵¹Cr in V in this range is

Diffusion of ⁵¹Cr is similar to that observed in V self‐diffusion. Together with the low‐temperature data of Wolfe and Paxton it can be analysed as in the past by two straight lines in the respective low- and high‐temperature regions. However, these same data can adequately be described by a continuous curve as

For the time being, insufficient information is available to select with certainty which of the two representations of the data is preferable.