Fe-Sb系合金の焼鈍に伴う表面組成の変化

概要

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Antimony is sometimes added to iron based alloys, in order to improve the surface properties of the alloys. Although alloying elements are known to be often enriched to the surfaces of the alloys annealed at high temperatures, the enrichment of these elements at the alloy surfaces can occur due to different mechanisms. In this study, XPS was used for characterizing the enrichment of antimony on the iron surfaces by annealing under a low partial pressure of oxygen. The results showed that antimony was enriched to the iron based alloy surfaces by annealing at high temperatures, and the thicknesses of the antimony enriched layer was less than about 1nm. Although the addition of nickel to the alloy seemed to enhance the enrichment rate of antimony, the amount of antimony enriched on the sample surface was not influenced by the addition of nickel.報文Original Paper
東北大学の論文