Premium
In Situ Synchrotron Study of B19 Phase Formation in an Intermetallic γ‐TiAl Alloy
Author(s) -
Schmoelzer Thomas,
Stark Andreas,
Schwaighofer Emanuel,
Lippmann Thomas,
Mayer Svea,
Clemens Helmut
Publication year - 2012
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201200047
Subject(s) - intermetallic , materials science , alloy , synchrotron , dissolution , phase (matter) , diffraction , in situ , metallurgy , phase diagram , crystallography , thermodynamics , chemical engineering , optics , chemistry , physics , organic chemistry , meteorology , engineering
A multitude of phases exists in the binary Ti–Al phase diagram and even greater numbers are formed in structural TiAl alloys, which contain additional alloying elements to improve their properties. In the current study, a Ti–45 Al–3 Mo–0.1 B (in at%) alloy was investigated with respect to the phases occurring in chemical non‐equilibrium. In situ high‐energy X‐ray diffraction experiments enabled to identify a transient phase to be of the B19 type and to determine its temperatures of formation and dissolution.