A tem study of activated FeTi surface

Abstract Transmission electron microscopy was used to study FeTi samples that had undergone activation treatments at low oxygen pressure. Activation treatments resulted in the formation of oxygen-stabilized Ti 4 Fe 2 O x precipitates in the surface layers. In addition at 0.1 Pa oxygen pressure TiO is formed, while TiO 2 and Fe 3 O 4 are formed both at low and high oxygen pressure treatments.