A TEM study of Fe_3+x Co_3-xTi₂ (x = 0, 1, 2, 3) intermetallic alloys

Authors

Xingzhong Li, University of Nebraska-LincolnFollow
Anandakumar Sarella, University of Nebraska - LincolnFollow
B. Balasubramanian, University of Nebraska-Lincoln
Shah R. Valloppilly, University of Nebraska-LincolnFollow

Date of this Version

10-4-2022

Citation

Published in Materials Characterization 194 (2022) 112366 doi:10.1016/j.matchar.2022.112366

Comments

Copyright © 2022 Elsevier Inc. Used by permission.

Abstract

A TEM study has been carried out on crystal structures in the rare-earth-free intermetallic alloys, Fe_3+xCo_3-xTi₂ (x = 0, 1, 2, 3). These alloys have been demonstrated to have potentially high magnetic anisotropy. In these alloys, the main intermetallic compound was recently reported as a new hexagonal phase with a space group of P-6 m2. The present study reveals that the main compound belongs to Laves C14 variant surrounded by α-Fe type crystal as secondary phase in the Fe_3+xCo_3-xTi₂ (x = 0, 1, 2, 3) alloys, in agreement with the Fe-Ti and Fe-Co-Ti phase diagrams. The SAED, EDS, HRTEM and XRD techniques have been carried out to characterize the intermetallic compounds in the Fe_3+xCo_3-xTi₂ (x = 0, 1, 2, 3) alloys.