Thermal Expansion of a Multiphase Intermetallic Ti-Al-Nb-Mo Alloy Studied by High-Energy X-ray Diffraction
Intermetallic γ-TiAl-based alloys are lightweight materials for high-temperature applications, 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 i...
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MDPI AG
2021-02-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/14/4/727 |
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| author | Peter Staron Andreas Stark Norbert Schell Petra Spoerk-Erdely Helmut Clemens |
| author_facet | Peter Staron Andreas Stark Norbert Schell Petra Spoerk-Erdely Helmut Clemens |
| author_sort | Peter Staron |
| collection | DOAJ |
| description | Intermetallic γ-TiAl-based alloys are lightweight materials for high-temperature applications, 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<sub>2</sub>-Ti<sub>3</sub>Al, β<sub>o</sub>-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 coefficients 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. |
| first_indexed | 2024-03-09T05:41:25Z |
| format | Article |
| id | doaj.art-a6d6b57b5b124fdea2284c5cea732c4c |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T05:41:25Z |
| publishDate | 2021-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-a6d6b57b5b124fdea2284c5cea732c4c2023-12-03T12:24:42ZengMDPI AGMaterials1996-19442021-02-0114472710.3390/ma14040727Thermal Expansion of a Multiphase Intermetallic Ti-Al-Nb-Mo Alloy Studied by High-Energy X-ray DiffractionPeter Staron0Andreas Stark1Norbert Schell2Petra Spoerk-Erdely3Helmut Clemens4Institute of Materials Research, Helmholtz-Zentrum Geesthacht, Max Planck-Straße 1, 21502 Geesthacht, GermanyInstitute of Materials Research, Helmholtz-Zentrum Geesthacht, Max Planck-Straße 1, 21502 Geesthacht, GermanyInstitute of Materials Research, Helmholtz-Zentrum Geesthacht, Max Planck-Straße 1, 21502 Geesthacht, GermanyDepartment Materials Science, Montanuniversität Leoben, Franz Josef-Straße 18, 8700 Leoben, AustriaDepartment Materials Science, Montanuniversität Leoben, Franz Josef-Straße 18, 8700 Leoben, AustriaIntermetallic γ-TiAl-based alloys are lightweight materials for high-temperature applications, 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<sub>2</sub>-Ti<sub>3</sub>Al, β<sub>o</sub>-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 coefficients 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.https://www.mdpi.com/1996-1944/14/4/727intermetallicsTiAl alloysthermal expansionhigh-energy X-ray diffraction |
| spellingShingle | Peter Staron Andreas Stark Norbert Schell Petra Spoerk-Erdely Helmut Clemens Thermal Expansion of a Multiphase Intermetallic Ti-Al-Nb-Mo Alloy Studied by High-Energy X-ray Diffraction Materials intermetallics TiAl alloys thermal expansion high-energy X-ray diffraction |
| title | Thermal Expansion of a Multiphase Intermetallic Ti-Al-Nb-Mo Alloy Studied by High-Energy X-ray Diffraction |
| title_full | Thermal Expansion of a Multiphase Intermetallic Ti-Al-Nb-Mo Alloy Studied by High-Energy X-ray Diffraction |
| title_fullStr | Thermal Expansion of a Multiphase Intermetallic Ti-Al-Nb-Mo Alloy Studied by High-Energy X-ray Diffraction |
| title_full_unstemmed | Thermal Expansion of a Multiphase Intermetallic Ti-Al-Nb-Mo Alloy Studied by High-Energy X-ray Diffraction |
| title_short | Thermal Expansion of a Multiphase Intermetallic Ti-Al-Nb-Mo Alloy Studied by High-Energy X-ray Diffraction |
| title_sort | thermal expansion of a multiphase intermetallic ti al nb mo alloy studied by high energy x ray diffraction |
| topic | intermetallics TiAl alloys thermal expansion high-energy X-ray diffraction |
| url | https://www.mdpi.com/1996-1944/14/4/727 |
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