Experimental Investigation and Thermodynamic Assessment of Phase Equilibria in the Al-Ta-V Ternary System
Abstract The phase equilibria in the Al-Ta-V ternary system at 1000 °C and 1200 °C have been studied by using electron probe microanalysis and x-ray diffraction. τ-$ Al_{2.9} $$ Ta_{2.7} $$ V_{1.4} $ phase was found in the Al-Ta-V ternary system in both isothermal sections. The addition of V stabilizes the $ Al_{69} $$ Ta_{39} $ phase at 1000 °C. The line compound $ Al_{3} $(V,Ta) ($ D0_{22} $-type) forms a continuous phase region from the Al-V side to the Al-Ta side at the two temperatures. Based on our experimental results, reported liquidus projection of the ternary Al-Ta-V system and thermodynamic data of the binary systems of Al-V, Al-Ta and V-Ta, a thermodynamic evaluation of Al-Ta-V system was carried out by CALPHAD method. A set of reliable thermodynamic parameters for the Al-Ta-V system was obtained. The current calculation results agree well with the available experimental data. The invariant reaction scheme of Al-Ta-V ternary system was presented. The present study could provide essential experimental and thermodynamic data for establishing a comprehensive Co-based superalloy database..
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:45 |
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| Enthalten in: |
Journal of phase equilibria and diffusion - 45(2024), 2 vom: Apr., Seite 156-174 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Wang, Cuiping [VerfasserIn] |
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| Links: |
Volltext [lizenzpflichtig] |
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| Themen: |
Al-Ta-V ternary system |
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| Anmerkungen: |
© ASM International 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
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| doi: |
10.1007/s11669-024-01102-1 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
SPR055528694 |
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| 520 | |a Abstract The phase equilibria in the Al-Ta-V ternary system at 1000 °C and 1200 °C have been studied by using electron probe microanalysis and x-ray diffraction. τ-$ Al_{2.9} $$ Ta_{2.7} $$ V_{1.4} $ phase was found in the Al-Ta-V ternary system in both isothermal sections. The addition of V stabilizes the $ Al_{69} $$ Ta_{39} $ phase at 1000 °C. The line compound $ Al_{3} $(V,Ta) ($ D0_{22} $-type) forms a continuous phase region from the Al-V side to the Al-Ta side at the two temperatures. Based on our experimental results, reported liquidus projection of the ternary Al-Ta-V system and thermodynamic data of the binary systems of Al-V, Al-Ta and V-Ta, a thermodynamic evaluation of Al-Ta-V system was carried out by CALPHAD method. A set of reliable thermodynamic parameters for the Al-Ta-V system was obtained. The current calculation results agree well with the available experimental data. The invariant reaction scheme of Al-Ta-V ternary system was presented. The present study could provide essential experimental and thermodynamic data for establishing a comprehensive Co-based superalloy database. | ||
| 650 | 4 | |a Al-Ta-V ternary system |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a CALPHAD method |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a microstructure |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a phase diagram |7 (dpeaa)DE-He213 | |
| 700 | 1 | |a Zheng, Debin |e verfasserin |4 aut | |
| 700 | 1 | |a Zheng, Zhangcan |e verfasserin |4 aut | |
| 700 | 1 | |a Wu, Lianzhang |e verfasserin |4 aut | |
| 700 | 1 | |a Le, Jianping |e verfasserin |4 aut | |
| 700 | 1 | |a Guo, Yihui |e verfasserin |4 aut | |
| 700 | 1 | |a Huang, Yixiong |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Jinbin |e verfasserin |4 aut | |
| 700 | 1 | |a Lu, Yong |e verfasserin |4 aut | |
| 700 | 1 | |a Liu, Xingjun |e verfasserin |4 aut | |
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