2011
DOI: 10.1557/opl.2011.31
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Phase Equilibria and Phase Transformations in Molybdenum-Containing TiAl Alloys

Abstract: Molybdenum, being a strong stabilizer, is an important alloying element in TiAl alloys, since a significant volume fraction of the disordered bcc -phase at elevated temperatures improves the processing characteristics during hot-working. Unfortunately, the effect of Mo on the individual phases and their transition temperatures is not completely known but is necessary for designing engineering applications. In this paper, sections of the Ti-Al-Mo ternary phase diagram derived from thermodynamic calculations as … Show more

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Cited by 18 publications
(7 citation statements)
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“…1(a)]. Concerning the evolution of the microstructure during solidification, HIPing, short, and long‐term ageing treatments further investigations are underway and will be published in a forthcoming paper 23…”
Section: Resultsmentioning
confidence: 99%
“…1(a)]. Concerning the evolution of the microstructure during solidification, HIPing, short, and long‐term ageing treatments further investigations are underway and will be published in a forthcoming paper 23…”
Section: Resultsmentioning
confidence: 99%
“…[14] Details on ingot production, phase diagram and original microstructure can be found in. [6,7] Diffraction experiments were conducted with a beam of monochromatic synchrotron radiation which had a mean energy of 100 keV and a cross-section of 1x1 mm 2 . Heating of the cylindrical specimens with a diameter of 5 mm and a length of 15 mm was performed by a modified Bähr DIL 805A/D dilatometer.…”
Section: Methodsmentioning
confidence: 99%
“…The phases occurring in this alloy were studied by means of in-situ high-energy X-ray diffraction (HEXRD) over a wide temperature range [6] and it was attempted to construct a phase diagram from the results of this study and information published in the literature. [7] In technological processes, however, high heating and cooling rates are frequently used. Therefore, the materials behavior under disequilibrium conditions is investigated in the current study.…”
Section: Introductionmentioning
confidence: 99%
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“…In this short review representative sections of the ternary Ti-Al-Mo phase diagram derived from thermodynamic calculations and experimental results are presented 3,4 . In principle most advanced multi-phase TiAl alloys consist of three intermetallic phases, namely α 2 -Ti 3 Al, β o -TiAl and γ-TiAl, which are all ordered at ambient temperature.…”
Section: Introductionmentioning
confidence: 99%