Thermodynamic assessment of the Al-Mo system and of the Ti-Al-Mo System from 0 to 20 at.% Ti

被引：46

作者：

Cupid, Damian M. ^{[1
]}

Fabrichnaya, Olga ^{[1
]}

Ebrahimi, Fereshteh ^{[2
]}

Seifert, Hans J. ^{[1
]}

机构：

[1] Tech Univ Bergakad Freiberg, Inst Mat Sci, D-09596 Freiberg, Germany

[2] Univ Florida, Dept Mat Sci, Gainesville, FL USA

来源：

INTERMETALLICS | 2010年 / 18卷 / 06期

基金：

美国国家科学基金会;

关键词：

trialuminides; TiAl(3); NbAl(3); etc; phase diagram; prediction; including; CALPHAD; ALUMINIUM-MOLYBDENUM SYSTEM; PHASE-EQUILIBRIA; LAMELLAR MICROSTRUCTURE; FRACTURE-TOUGHNESS; TENSILE PROPERTIES; BETA-STABILIZERS; ALLOYS; TITANIUM; DIAGRAM; METALS;

D O I：

10.1016/j.intermet.2010.03.010

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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.

引用

页码：1185 / 1196

页数：12

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