Abstract
The self-diffusion coefficients for alpha and gamma iron have been measured from 720 to 1357°C. The data approximately obey Dα = 2.3 × 103 e−73200/RT and Dγ = 5.8 e−74200/RT, although there is evidence for curvature of the log D vs. 1/T plot for alpha iron. An appreciable grain size effect was noted.
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