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HERO ID
1770055
Reference Type
Journal Article
Title
Thermodynamic assessment of the Al-Mo system and of the Ti-Al-Mo System from 0 to 20 at.% Ti
Author(s)
Cupid, DM; Fabrichnaya, O; Ebrahimi, F; Seifert, HJ
Year
2010
Is Peer Reviewed?
Yes
Journal
Intermetallics
ISSN:
0966-9795
Volume
18
Issue
6
Page Numbers
1185-1196
DOI
10.1016/j.intermet.2010.03.010
Web of Science Id
WOS:000278040800010
Abstract
A re-assessment of the thermodynamic description of the binary Al-Mo and of the ternary Ti-Al-Mo system from 0 to 20 at.%Ti was performed. The new Al-Mo description reproduces a congruent melting of the AlMo phase and the calculated phase diagram is in excellent agreement with the experimental data on the Al-rich region showing the formation of several Al-rich intermetallic phases. The new Al-Mo description was used as the constituent binary in the Ti-Al-Mo system and the thermodynamic parameters of the eta, beta, and delta phases were re-optimized. Calculations using the new description are in good agreement with experimental work performed in the region from 0 to 20 at.% Ti showing the extension of the beta phase from the Ti-Mo binary to the Al-Mo binary, the beta phase solidification of several alloys, and the transition reaction between the beta, Al(8)Mo(3), delta, and eta phases at 1540 K. (C) 2010 Elsevier Ltd. All rights reserved.
Keywords
trialuminides, TiAl(3), NbAl(3), etc.; phase diagram, prediction, including; CALPHAD
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