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Defeating phase boundary-induced internal oxidation via eliminating interfacial Al segregation in D019-strengthened high-entropy alloys
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DOI：10.1016/j.corsci.2026.114141.png)
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Abstract
En 中文
• A novel Al‑segregation‑eliminated (ASE) HEA with granular D019 phase was designed. • The ASE alloy forms a hierarchical Cr/Al‑rich oxide scale that suppresses internal oxidation. • Al segregation at phase boundaries triggers internal oxidation in lamellar D019‑strengthened HEA. • Interfacial Al segregation disrupts the formation of a continuous Al2O3 layer. • High‑strain serrated phase boundaries in ASE alloy homogenize interfacial chemistry and eliminate Al segregation.
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8.5
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1.3W
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7.3W
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