Diffusion in the aged aluminium film on iron

doi:10.1088/1674-1056/26/3/038201

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.

Keywords: aluminium film diffusion coefficients iron molecular dynamics

Received: 24 October 2016
Revised: 30 November 2016
Accepted manuscript online:

PACS:	82.20.Wt	(Computational modeling; simulation)
	81.15.Aa	(Theory and models of film growth)

Fund:

Project supported by the Ministry of Science and Education of the Russian Federation (Grant No. 14.607.21.0035, unique identifier RFMEFI60714X0035).

Corresponding Authors: A Y Galashev
E-mail: alexander-galashev@yandex.ru

Cite this article:

A Y Galashev, O R Rakhmanova, V A Kovrov, Yu P Zaikov Diffusion in the aged aluminium film on iron 2017 Chin. Phys. B 26 038201

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