Phase Transition and Ordering Temperatures of TiAl-Mo Alloys Investigated by In Situ Diffraction Experiments

Thomas Schmoelzer; Svea Mayer; Frank Haupt; Gerald A. Zickler; Christian Sailer; Lars Lottermoser; Volker Güther; Klaus Dieter Liss; Helmut Clemens

doi:10.4028/www.scientific.net/MSF.654-656.456

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The Effect of Alloying Elements on Microstructure and Strength Property of Dual Two-Phase Intermetallic Alloys Based on Ni₃Al-Ni₃V Pseudo-Binary Alloy System
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Phase Transition and Ordering Temperatures of TiAl-Mo Alloys Investigated by In Situ Diffraction Experiments
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Effect of Y on Microstructure and Mechanical Properties of a Ti Alloy
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Effects of Electropulsing Treatment on the Precipitation Behaviour of Grain Boundary Carbides in GH3044 Alloy
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The Effect of Refractory Elements on Microstructure and Mechanical Properties of Ni₃(Si,Ti) Intermetallic Alloys
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HomeMaterials Science ForumMaterials Science Forum Vols. 654-656Phase Transition and Ordering Temperatures of...

Phase Transition and Ordering Temperatures of TiAl-Mo Alloys Investigated by In Situ Diffraction Experiments

Abstract:

Intermetallic TiAl alloys with a significant volume fraction of the body-centered cubic β-phase at elevated temperatures have proven to exhibit good processing characteristics during hot-working. Being a strong β stabilizer, Mo has gained importance as an alloying element for so-called β/γ-TiAl alloys. Unfortunately, the effect of Mo on the appearing phases and their temperature dependence is not well known. In this work, two sections of the Ti-Al-Mo ternary phase diagram derived from experimental data are shown. These diagrams are compared with the results of in-situ high-temperature diffraction experiments using high-energy synchrotron radiation.

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Materials Science Forum (Volumes 654-656)

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456-459

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.654-656.456

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Online since:

June 2010

Authors:

Thomas Schmoelzer, Svea Mayer, Frank Haupt, Gerald A. Zickler, Christian Sailer, Lars Lottermoser, Volker Güther, Klaus Dieter Liss, Helmut Clemens

Keywords:

Diffraction, Phase Diagram, Phase Transformation, Thermodynamic Calculation, TiAl

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