Calculation of self-diffusion coefficients in iron - AIP Publishing
Jan 23, 2014 · On the basis of available P-V-T equation of state of iron, the temperature and pressure dependence of self-diffusion coefficients in iron polymorphs (α, δ, γ and ɛ phases) …
The theory of D0 in the Arrhenius equation for self-diffusion in …
Zener's theory of D 0 is extended. By assuming correlations between the various quantities occurring in the theoretical expressions for the self-diffusion coefficient appropriate to the …
Self-diffusion and isotope effect in α-iron - ScienceDirect
Oct 1, 1988 · Self-diffusion and isotope effect in α-iron have been studied by a serial radio-frequency sputter-microsectioning method with radioactive tracers 55 Fe and 59 Fe in the …
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5. Diffusion in Iron
Diffusion 5. Diffusion in Iron Self-Diffusion in Iron If one plots the log(DSD), the logarithm of the self-diffusion coefficient versus the inverse temperature 1/T in an Arrhenus plot, a rather …
The pre-factor, D0, of the diffusion coefficient in amorphous alloys ...
Mar 1, 1998 · Correlation between the pre-factor Da and the effective activation energy Q of the self-diffusion coefficient in silver grain boundaries of different orientation (closed symbols) …
Self-Diffusion in Alloys - IntechOpen
Sep 24, 2015 · It has been successfully provided that in Fe, Co, Ni, Cu, Zn, Al, Ga, Cr, and Mn, alloy has been done to obtain reliable values of diffusion coefficient particularly with Arrhenius …
The surface energy and self diffusion coefficient of solid iron …
5.3. Self-diffusion coefficients For iron, the diffusion coefficients are best re- presented by equation D = 8-3 exp (-60,800/AT) cm2 sec"1. This represents the only experimental …
2. The diffusion coefficients The diffusion coefficient D, if a single diffusion mechanism is operating in mono-atomic crystals, is described in terms of the activation Gibbs energy gact, …
corresponds to the negative slope of the Arrhenius diagram. For a tempera-ture-independent activation enthalpy, the Arrhenius diagram is a straight line with slope −∆H/kB. The intercept of …
Calculation of self-diffusion coefficients in iron Baohua Zhang Citation: AIP Advances 4, 017128 (2014); doi: 10.1063/1.4863462 ... largely deviated from the Arrhenius behaviour due to the ...