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Diffusion in the aged aluminium film on iron

Diffusion in the aged aluminium film on iron


Chin. Phys. B Vol. 26, No. 3 (2017) 038201

A. Y. Galashev, O. R. Rakhmanova, V. A. Kovrov, and Yu. P. Zaikov


Abstract— Metallic coatings of many types can be applied to steel to provide outstanding, long-term corrosion protection. A thin Al film is studied at an Fe substrate by the molecular dynamics method at temperatures ranging from 300 K to 1173 K. Al atoms are found to penetrate the Fe matrix at a temperature of 873 K. The potential energy of the system changes step-like at a temperature of 1173 K. At such temperature mean square atomic displacement significantly changes. The behaviors of the Al and Fe diffusion coefficients are mainly determined by the temperature dependence of the diffusion activation energy.





Категория: Chin. Phys. B | Добавил: watercluster (28.09.2017)
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