A study of the Al-rich region of the Al–Fe–Ir alloy system

Phase equilibria in Al–Fe–Ir were studied at 850 and 1100 °C above 50 at% Al. The formation of the continuous ternary region of solid solutions was estimated along about 50 at% Al between the Al–Fe and Al–Ir β-phases. The binary M-Al13Fe4 and Al5Fe2 phases dissolve up to at least 10 and 5 at% Ir, th...

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Main Author: B. Grushko
Format: Article
Language:English
Published: Elsevier 2023-12-01
Series:Journal of Alloys and Metallurgical Systems
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2949917823000408
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author B. Grushko
author_facet B. Grushko
author_sort B. Grushko
collection DOAJ
description Phase equilibria in Al–Fe–Ir were studied at 850 and 1100 °C above 50 at% Al. The formation of the continuous ternary region of solid solutions was estimated along about 50 at% Al between the Al–Fe and Al–Ir β-phases. The binary M-Al13Fe4 and Al5Fe2 phases dissolve up to at least 10 and 5 at% Ir, the CIr-phase, Al3Ir, χIr-phase and Al9Ir2 up to ∼4, ∼9, ∼2.5 and at least 2.5 at% Fe, respectively. These binaries extend to the ternary compositions at approximately constant Al. Three ternary phases designated m, Ł and N were revealed. The m-Al13(Fe,Ir)4 phase of the Al13Os4-type structure (C2/m, a = 1.7406 nm, b = 0.41923 nm, c = 0.76459 nm, β = 115.78°) is formed at ∼Al75–76Fe6–9Ir18–15. A ternary hexagonal Ł-phase (a = 1.09034 nm, c = 0.77614 nm) is formed in a small compositional region around ∼ Al74Fe14Ir12. The structure of a complex ternary N-phase forming at ∼Al77.5Fe5.0–10.5Ir17.5–12 was not specified.
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spelling doaj.art-604aad18cd6f4017b47b663fe8ea64b62024-01-27T07:14:25ZengElsevierJournal of Alloys and Metallurgical Systems2949-91782023-12-014100040A study of the Al-rich region of the Al–Fe–Ir alloy systemB. Grushko0ERC-1, Forschungszentrum Jülich, 52425 Jülich, GermanyPhase equilibria in Al–Fe–Ir were studied at 850 and 1100 °C above 50 at% Al. The formation of the continuous ternary region of solid solutions was estimated along about 50 at% Al between the Al–Fe and Al–Ir β-phases. The binary M-Al13Fe4 and Al5Fe2 phases dissolve up to at least 10 and 5 at% Ir, the CIr-phase, Al3Ir, χIr-phase and Al9Ir2 up to ∼4, ∼9, ∼2.5 and at least 2.5 at% Fe, respectively. These binaries extend to the ternary compositions at approximately constant Al. Three ternary phases designated m, Ł and N were revealed. The m-Al13(Fe,Ir)4 phase of the Al13Os4-type structure (C2/m, a = 1.7406 nm, b = 0.41923 nm, c = 0.76459 nm, β = 115.78°) is formed at ∼Al75–76Fe6–9Ir18–15. A ternary hexagonal Ł-phase (a = 1.09034 nm, c = 0.77614 nm) is formed in a small compositional region around ∼ Al74Fe14Ir12. The structure of a complex ternary N-phase forming at ∼Al77.5Fe5.0–10.5Ir17.5–12 was not specified.http://www.sciencedirect.com/science/article/pii/S2949917823000408Aluminum alloysTransition metal alloys and compoundsPhase diagrams
spellingShingle B. Grushko
A study of the Al-rich region of the Al–Fe–Ir alloy system
Journal of Alloys and Metallurgical Systems
Aluminum alloys
Transition metal alloys and compounds
Phase diagrams
title A study of the Al-rich region of the Al–Fe–Ir alloy system
title_full A study of the Al-rich region of the Al–Fe–Ir alloy system
title_fullStr A study of the Al-rich region of the Al–Fe–Ir alloy system
title_full_unstemmed A study of the Al-rich region of the Al–Fe–Ir alloy system
title_short A study of the Al-rich region of the Al–Fe–Ir alloy system
title_sort study of the al rich region of the al fe ir alloy system
topic Aluminum alloys
Transition metal alloys and compounds
Phase diagrams
url http://www.sciencedirect.com/science/article/pii/S2949917823000408
work_keys_str_mv AT bgrushko astudyofthealrichregionofthealfeiralloysystem
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