Article ID Journal Published Year Pages File Type
1634668 Procedia Materials Science 2015 7 Pages PDF
Abstract

In industrial applications, the mechanical stability of surface oxides formed from metal alloys is a key concern in the determination of component susceptibility to different deterioration mechanisms. In particular, the Fe/Fe3O4 system that is treated in this work is of great interest for many applications. A complete description of the chemical bonds between the metal substrate and the surface oxide may provide vital information. Charge density of the metal/oxide interface is obtained from DFT calculations, as well as for the free surfaces involved. A homemade computer program was implemented to calculate charge redistribution between the constituting surfaces and iron / magnetite interfaces. This analysis makes it possible to identify the interaction between surface iron as the key to understand interfacial adhesion. These results correlate to previous adhesion studies.

Related Topics
Physical Sciences and Engineering Materials Science Metals and Alloys