Thermal Expansion of a Multiphase Intermetallic Ti-Al-Nb-Mo Alloy Studied by High-Energy X-ray Diffraction
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In: Materials, Vol. 14.2021, No. 4, 727, 04.02.2021, p. 1-13.
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TY - JOUR
T1 - Thermal Expansion of a Multiphase Intermetallic Ti-Al-Nb-Mo Alloy Studied by High-Energy X-ray Diffraction
AU - Staron, Peter
AU - Stark, Andreas
AU - Schell, Norbert
AU - Spörk-Erdely, Petra
AU - Clemens, Helmut
PY - 2021/2/4
Y1 - 2021/2/4
N2 - Intermetallic γ-TiAl-based alloys are lightweight materials for high-temperature applica-tions, e.g., in the aerospace and automotive industries. They can replace much heavier Ni-based alloys at operating temperatures up to 750 ◦C. Advanced variants of this alloy class enable processing routes that include hot forming. These alloys consist of three relevant crystallographic phases (γ-TiAl, α 2-Ti 3Al, β o-TiAl) that transform into each other at different temperatures. For thermo-mechanical treatments as well as for adjusting alloy properties required under service conditions, the knowledge of the thermal expansion behavior of these phases is important. Therefore, thermal expansion co-efficients were determined for the relevant phases in a Ti-Al-Nb-Mo alloy for temperatures up to 1100 ◦C using high-energy X-ray diffraction.
AB - Intermetallic γ-TiAl-based alloys are lightweight materials for high-temperature applica-tions, e.g., in the aerospace and automotive industries. They can replace much heavier Ni-based alloys at operating temperatures up to 750 ◦C. Advanced variants of this alloy class enable processing routes that include hot forming. These alloys consist of three relevant crystallographic phases (γ-TiAl, α 2-Ti 3Al, β o-TiAl) that transform into each other at different temperatures. For thermo-mechanical treatments as well as for adjusting alloy properties required under service conditions, the knowledge of the thermal expansion behavior of these phases is important. Therefore, thermal expansion co-efficients were determined for the relevant phases in a Ti-Al-Nb-Mo alloy for temperatures up to 1100 ◦C using high-energy X-ray diffraction.
UR - http://www.scopus.com/inward/record.url?scp=85100751519&partnerID=8YFLogxK
U2 - 10.3390/ma14040727
DO - 10.3390/ma14040727
M3 - Article
VL - 14.2021
SP - 1
EP - 13
JO - Materials
JF - Materials
SN - 1996-1944
IS - 4
M1 - 727
ER -
