Abstract In the context of cast alloy development for high temperature applications, high entropy superalloys (HESA) have exhibited superior cost specific tensile strength than that of superalloys such as CM247LC. Compositions of HESA are distinctively different from those of cast superalloys with higher contents of Fe and Ti, making HESA cheaper and lighter. Comparing to superalloys, although HESA has adopted the template of FCC-structured (γ) matrix and coherent L12-structured (γ′) precipitates, γ′ is enriched with solutes with higher intrinsic strength, rendering positive lattice misfit, and the high entropy γ matrix may have attributed to a good combination of strength and ductility.

中文翻译：

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设计用于高温应用的高熵高温合金

摘要 在用于高温应用的铸造合金开发的背景下，高熵高温合金 (HESA) 表现出比 CM247LC 等高温合金优越的成本比抗拉强度。HESA 的成分与 Fe 和 Ti 含量较高的铸造高温合金的成分明显不同，使得 HESA 更便宜、更轻。与高温合金相比，虽然 HESA 采用了 FCC 结构 (γ) 基体和相干 L12 结构 (γ') 析出物的模板，但 γ' 富含具有更高内在强度的溶质，导致正晶格错配，以及高熵 γ基体可能归因于强度和延展性的良好结合。