Abstract In the present work we study nanocrystallization of the Ti50Ni23Cu22Sn5 alloy within the supercooled liquid region by using a state-of-the-art experimental technique with elemental mapping at near-atomic resolution especially focusing on the incubation period which is still poorly understood from both the theoretical and experimental viewpoint. Molecular dynamics (MD) simulation results performed for the Ti55Ni45 liquid acting as a simplified model system of the (Ti,Sn)55(Ni,Cu)45 alloy illustrate the process of nucleation and provide some additional suggestions. The experiment and MD results indicate formation of nanometer-range chemical rearrangements which are supposed to reduce the energy barrier in the complex energy landscape finally leading to a high density of homogeneously nucleating crystallites after the completion of a macroscopically observed incubation period.

中文翻译：

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潜伏期内的局部化学排序作为高度过冷钛基液体纳米化的触发因素

摘要 在目前的工作中，我们使用最先进的实验技术在近原子分辨率下进行元素映射研究了 Ti50Ni23Cu22Sn5 合金在过冷液体区域内的纳米化，特别是关注孵化期，这两个方面仍然知之甚少。理论和实验的观点。对作为 (Ti,Sn)55(Ni,Cu)45 合金简化模型系统的 Ti55Ni45 液体进行的分子动力学 (MD) 模拟结果说明了成核过程并提供了一些额外的建议。