Robust γ-TiAl Dual Microstructure Concept by Advanced Electron Beam Powder Bed Fusion Technology
The dual microstructure concept for gamma titanium aluminides (γ-TiAl) processed via electron beam–powder bed fusion (PBF-EB) provides a huge potential for more efficient jet turbine engines. While the concept is feasible and the mechanical properties are promising, there are still some challenges....
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-09-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/13/9/1348 |
| _version_ | 1797580670362451968 |
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| author | Marcel Reith Martin Franke Carolin Körner |
| author_facet | Marcel Reith Martin Franke Carolin Körner |
| author_sort | Marcel Reith |
| collection | DOAJ |
| description | The dual microstructure concept for gamma titanium aluminides (γ-TiAl) processed via electron beam–powder bed fusion (PBF-EB) provides a huge potential for more efficient jet turbine engines. While the concept is feasible and the mechanical properties are promising, there are still some challenges. For an industrial application, the heat treatment window has to match the conditions in industrial furnaces. This study shows how the required heat treatment window can be achieved via advanced PBF-EB technology. Through using an electron beam with 150 kV acceleration voltage, the difference in aluminum between the designed aluminum-rich and aluminum-lean regions of the part is increased. Moreover, the aluminum content within each of these regions, respectively, is more homogenous compared to the 60 kV acceleration voltage. This combination provides a heat treatment window of 25 °C, enabling the industrial application of the dual microstructure concept for γ-TiAl. |
| first_indexed | 2024-03-10T22:53:14Z |
| format | Article |
| id | doaj.art-6669c957762e45d4bfc36a967647c5d9 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-10T22:53:14Z |
| publishDate | 2023-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-6669c957762e45d4bfc36a967647c5d92023-11-19T10:09:28ZengMDPI AGCrystals2073-43522023-09-01139134810.3390/cryst13091348Robust γ-TiAl Dual Microstructure Concept by Advanced Electron Beam Powder Bed Fusion TechnologyMarcel Reith0Martin Franke1Carolin Körner2Neue Materialien Fürth, Dr-Mack-Str. 81, 90762 Fuerth, GermanyNeue Materialien Fürth, Dr-Mack-Str. 81, 90762 Fuerth, GermanyMaterial Science and Engineering for Metals, Friedrich-Alexander-Universität Erlangen-Nürnberg, Martensstraße 5, 91058 Erlangen, GermanyThe dual microstructure concept for gamma titanium aluminides (γ-TiAl) processed via electron beam–powder bed fusion (PBF-EB) provides a huge potential for more efficient jet turbine engines. While the concept is feasible and the mechanical properties are promising, there are still some challenges. For an industrial application, the heat treatment window has to match the conditions in industrial furnaces. This study shows how the required heat treatment window can be achieved via advanced PBF-EB technology. Through using an electron beam with 150 kV acceleration voltage, the difference in aluminum between the designed aluminum-rich and aluminum-lean regions of the part is increased. Moreover, the aluminum content within each of these regions, respectively, is more homogenous compared to the 60 kV acceleration voltage. This combination provides a heat treatment window of 25 °C, enabling the industrial application of the dual microstructure concept for γ-TiAl.https://www.mdpi.com/2073-4352/13/9/1348additive manufacturingelectron beam powder bed fusionacceleration voltagebeam characteristicstitanium aluminidedual microstructure |
| spellingShingle | Marcel Reith Martin Franke Carolin Körner Robust γ-TiAl Dual Microstructure Concept by Advanced Electron Beam Powder Bed Fusion Technology Crystals additive manufacturing electron beam powder bed fusion acceleration voltage beam characteristics titanium aluminide dual microstructure |
| title | Robust γ-TiAl Dual Microstructure Concept by Advanced Electron Beam Powder Bed Fusion Technology |
| title_full | Robust γ-TiAl Dual Microstructure Concept by Advanced Electron Beam Powder Bed Fusion Technology |
| title_fullStr | Robust γ-TiAl Dual Microstructure Concept by Advanced Electron Beam Powder Bed Fusion Technology |
| title_full_unstemmed | Robust γ-TiAl Dual Microstructure Concept by Advanced Electron Beam Powder Bed Fusion Technology |
| title_short | Robust γ-TiAl Dual Microstructure Concept by Advanced Electron Beam Powder Bed Fusion Technology |
| title_sort | robust γ tial dual microstructure concept by advanced electron beam powder bed fusion technology |
| topic | additive manufacturing electron beam powder bed fusion acceleration voltage beam characteristics titanium aluminide dual microstructure |
| url | https://www.mdpi.com/2073-4352/13/9/1348 |
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