Title: Formation of (B2+D0(3))phases at al2(100) anti-phase boundary in an Fe-23 at.%Al-8.5 at.%Ti alloy
Authors: Su, Chun-Wei
Chao, Chuen-Guang
Liu, Tzeng-Feng
Department of Materials Science and Engineering
Keywords: iron alloys;phase transformations;TEM;anti-phase boundary
Issue Date: 1-Nov-2007
Abstract: The as-quenched microstructure of the Fe-23 at.%Al-8.5 at.%Ti alloy was a mixture of (A2 + D0(3)) phases. Transmission electron microscopy (TEM) examinations indicated that when the alloy was aged at 900 degrees C, the size of the D0(3) domains increased with increasing aging time, and an A2 -> (A2 + D0(3)) -> (B2 + D0(3)) transition occurred at a/2(100)anti-phase boundaries (APBs). This feature has never been reported by other workers in the Fe-Al-Ti alloy systems. (c) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
URI: http://dx.doi.org/10.1016/j.scriptamat.2007.07.023
ISSN: 1359-6462
DOI: 10.1016/j.scriptamat.2007.07.023
Volume: 57
Issue: 10
Begin Page: 917
End Page: 920
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