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Identification of monoclinic θ-phase dispersoids in a 6061 aluminium alloy

Abstract : Intermetallic dispersoids play an important role in controlling the 6xxx alloy series’ grain distribution and increasing the alloy’s toughness. The dispersoid distribution in a 6061 aluminium alloy (Al–Mg–Si) was analysed by transmission electron microscopy, selected area diffraction and energy-dispersive X-ray spectroscopy. The dispersoids had three unique crystal structures: simple cubic , body-centred cubic and monoclinic (C2/m). While the SC and BCC dispersoids have been well characterized in the literature, a detailed analysis of monoclinic dispersoids has not been presented. Therefore, the current work discusses the chemical composition, crystal structure and morphology of the monoclinic dispersoids.
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https://hal-cea.archives-ouvertes.fr/cea-02380762
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Submitted on : Tuesday, November 26, 2019 - 1:42:36 PM
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Karl Buchanan, Joël Ribis, Jérôme Garnier, Kimberly Colas. Identification of monoclinic θ-phase dispersoids in a 6061 aluminium alloy. Philosophical Magazine Letters, Taylor & Francis, 2016, 96 (4), pp.121-131. ⟨10.1080/09500839.2016.1162911⟩. ⟨cea-02380762⟩

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