Anzeige
Erschienen in:
30.03.2017
Evolution of Al-Ti Oxide Inclusion during Isothermal Heating of Fe-Al-Ti Alloy at 1573 K (1300 °C)
Erschienen in: Metallurgical and Materials Transactions B | Ausgabe 3/2017
EinloggenAktivieren Sie unsere intelligente Suche, um passende Fachinhalte oder Patente zu finden.
Wählen Sie Textabschnitte aus um mit Künstlicher Intelligenz passenden Patente zu finden. powered by
Markieren Sie Textabschnitte, um KI-gestützt weitere passende Inhalte zu finden. powered by
Abstract
Evolution of Al-Ti oxide inclusion during 3 hour isothermal heating of Fe-Al-Ti alloy at 1573 K (1300 °C) was studied. Homogeneous spherical Al-Ti oxide inclusion with nonstoichiometric composition was observed in two as-cast alloys. After heating, most of the homogeneous Al-Ti oxide inclusions changed to heterogeneous ones with Al-rich and Ti-rich parts, while the remaining homogeneous oxides were rare in both alloys. The concentration gradient of Al and O was observed inside the heterogeneous inclusion. The size distribution extended more broadly, and the shape changed from spherical to irregular. The mechanism of the variation was proposed as the diffusion of Al and O in the homogeneous inclusion from the inside to the surface of inclusion to precipitate alumina during heating.