Abstract
The Ti(3.87)Ni(1.73)Fe(0.7)O(0.3), Ti(3.87)Ni(1.73)Fe(0.4)N(0.3) and Ti(3.87)Ni(1.73)Fe(0.4)C(0.3) alloys were investigated regarding their surface characteristics. The scanning electron microscopy (SEM) equipped with energy dispersive X-ray spectroscopy (EDS) was used for phase characterization. The X-ray photoelectron spectroscopy (XPS) was used to analyze the chemical composition of alloy surface. The atomic force microscopy (AFM) to observe alloy surface topography after cutting and electrochemical polishing separately has been done. The transmission electron microscopy (TEM) with X-ray diffraction was carried out to get a high contrast images and the diffraction pattern from alloy surface.
The results clearly shown, that all alloys were multiphase, and their surface was totally oxidized with no pure metals. (C) 2008 Elsevier B.V. All rights reserved.