A Novel Low-Density, High-Hardness, High-entropy Alloy with Close-packed Single-phase Nanocrystalline Structures
A Novel Low-Density, High-Hardness, High-entropy Alloy with Close-packed Single-phase Nanocrystalline Structures
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DOI：
10.1080/21663831.2014.985855
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发表时间：
2015-01-01
影响因子：
8.3
通讯作者：
Koch, Carl C.
中科院分区：
文献类型：
--
作者：
Youssef, Khaled M.;Zaddach, Alexander J.;Koch, Carl C.
采用机械合金化方法制备了低密度、纳米晶高熵合金Al20Li20Mg10Sc20Ti30。它在球磨过程中形成单相面心立方结构，并在退火时转变为单相六面体结构。该合金的估计强度重量比明显高于其他纳米晶合金，可与陶瓷相媲美。退火后仍保持高硬度。
A low-density, nanocrystalline high-entropy alloy, Al20Li20Mg10Sc20Ti30 was produced by mechanical alloying. It formed a single-phase fcc structure during ball milling and transformed to single-phase hcp upon annealing. The alloy has an estimated strength-to-weight ratio that is significantly higher than other nanocrystalline alloys and is comparable to ceramics. High hardness is retained after annealing.