Structural Features and Related Properties of Amorphous Alloys with High Defect Densities/ Interfaces Densities

我们建议研究具有高密度缺陷的非晶合金的结构特征以及机械性能和一些物理性能。通过惰性气体冷凝（IGC）和溅射产生的纳米玻璃的非凡性质已经被揭示。然而，IGC和溅射制备的样品尺寸相对较小，这阻碍了它们的工业应用。另一方面，最近的研究表明，严重的塑性变形（SPD）处理可能会导致显着的变化，在原子结构的非晶材料相关的外观缺陷的短程有序和过量的自由体积。这些变化似乎取决于SPD处理参数（温度、应变程度和应变速率、施加的压力）。然而，非晶合金的结构转变和相关性能的特殊性，受到SPD还没有得到深入的研究。在SPD过程中形成的缺陷结构的特征在非晶合金中可以类似于或不同于通过IGC和溅射产生的纳米玻璃。平行研究的非晶材料与高密度的微观结构缺陷产生的IGC和溅射和SPD开辟了新的机会，影响非晶材料的微观结构参数，因此，它们的物理，机械和化学性能。在本项目中，基本参数（弹性模量、自由体积等）的一些非晶合金，产生的IGC和溅射一方面，另一方面，由SPD将全面研究第一次使用国家的最先进的分析技术。在此基础上，改变机械（强度和延展性）和物理，化学（磁性，电气，腐蚀性等）的可能性。非晶态合金的性能将得到证明。这些任务具有明显的创新潜力，因为先进的非晶合金在工程和医学中的实际应用的扩展。德国和俄罗斯团队在该项目中合作研究的必要性和效率是通过结合互补实验能力的协同效应来证明的，最重要的是，两个团队的互补能力。

We propose to study the structural features as well as mechanical properties and some of the physical properties of amorphous alloys with high density of defects. Extraordinary properties of nanoglasses, produced by inert gas condensation (IGC) and sputtering, have been already revealed. However, the dimensions of specimens produced by IGC and sputtering, are relatively small, which prevents their industrial application. On the other hand recent studies have shown that severe plastic deformation (SPD) processing may lead to significant changes in the atomic structure of amorphous materials related to the appearance of a defective short-range order and an excess free volume. These changes seem to depend on the SPD processing parameters (temperature, strain degree and strain rate, imposed pressure). However, peculiarities of structural transformations and related properties of amorphous alloys, subjected to SPD have not been thoroughly studied. Features of the defect structure formed during SPD in amorphous alloys may be either similar to or different from nanoglasses, produced by IGC and sputtering. Parallel studies of amorphous materials with a high density of microstructural defects produced by IGC and sputtering and by SPD open up new opportunities to influence the microstructural parameters of amorphous materials and, therefore, their physical, mechanical and chemical properties. In this project, the fundamental parameters (elastic modulus, free volume, etc.) of a number of amorphous alloys, produced by IGC and sputtering on the one hand and by SPD on the other hand will be studied comprehensively for the first time using state-of-the-art analytic techniques. On this basis, the possibility for varying the mechanical (strength and ductility) and physical, chemical (magnetic, electrical, corrosive, etc.) properties of amorphous alloys will be demonstrated. These tasks have an obvious innovation potential, due to an expansion of the practical application of advanced amorphous alloys in engineering and medicine. The necessity for and the efficiency of the collaborative research in this project of the German and Russian teams are justified by the synergic effects of combining complementary experimental capabilities and, most importantly, the complementary competencies of the two teams.