Amorphous alloys are a new member of the amorphous material family. Due to the lack of long-range ordering of atomic arrangement, amorphous alloys show unique properties allowing for broad applications. However, their obvious weakness in the formation and deformation of amorphous alloys has not been solved in this field for a long time, which restricts their efficient development. Traditionally, the composition design of multi-component amorphous alloys mainly follows the phase diagram research paradigm to determine the composition of the low liquid phase as the foothold with a special emphasis of deep eutectics. Yet, multi-component systems without accessible phase diagrams are beyond their reach, and new theoretical breakthroughs are urgently necessitated. Starting from the thermodynamics and deformation behavior of amorphous alloys, this review proposes and demonstrates that melting entropy and vibrational entropy are the key thermodynamic parameters governing the glass formation and guiding the composition design, and the shear-band behavior can be regulated by utilizing composition adjustment, which benefit the composition conditions and requirements for obtaining amorphous alloys with high performance.

非晶合金是非晶材料家族的新成员。由于缺乏原子排列的长程有序性，非晶态合金表现出独特的性能，具有广泛的应用前景。然而，其在非晶合金形成和变形方面的明显弱点在该领域长期以来一直没有得到解决，限制了其高效发展。传统上，多元非晶合金的成分设计主要遵循相图研究范式，以低液相成分确定为立足点，特别强调深共晶。然而，没有可访问的相图的多组分系统是遥不可及的，迫切需要新的理论突破。本文从非晶合金的热力学和变形行为出发，提出并论证了熔化熵和振动熵是控制玻璃形成和指导成分设计的关键热力学参数，并且可以通过成分调整来调节剪切带行为，有利于获得高性能非晶合金的成分条件和要求。