Self-diffusion in chromium
- 1 March 1965
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine
- Vol. 11 (111) , 467-474
- https://doi.org/10.1080/14786436508224234
Abstract
Self-diffusion measurements have been made in the temperature range 1000°c to 1550°c in order to resolve some uncertainties arising from previously published data from several separate investigations covering various parts of this range. A normal Arrhenius type of temperature dependence has been found, indicating the operation of a single diffusion mechanism with constant values of frequency factor and activation energy. Self-diffusion in chromium does not therefore exhibit the property of non-linear dependence of log D on 1/T recently established in other b.c.c. transition metals, Ti and Zr. The present results are in good agreement with those of Hagel for the temperature range 1200°c to 1600°c, and it is suggested that a predominance of grain boundary diffusion at lower temperatures is largely responsible for deviations of the results of other investigations from those of Hagel and the present authors.Keywords
This publication has 4 references indexed in Scilit:
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- Diffusion in titanium and titanium—niobium alloysPhilosophical Magazine, 1963
- Die Geschwindigkeit der Selbstdiffusion in reinem ChromArchiv für das Eisenhüttenwesen, 1959
- Calculation of Diffusion Penetration Curves for Surface and Grain Boundary DiffusionJournal of Applied Physics, 1951