Stress-induced solid-state amorphization in multi-principal-element alloys
Abstract
<p indent="0mm">In the past ten years, multi-principal-element alloys (MPEA) have attracted extensive research interest due to their unique structure and excellent properties. With the increasing demand on the properties of alloys, the introduction of amorphous phase into MPEA has become a new way of alloy design. On the other hand, stress loading has become a simple and effective strategy for obtaining amorphous structure and optimal design of alloys in recent years because of its ability to produce specific strains, which can significantly change the microstructure and properties of alloys. The realization forms mainly include ball milling, high-pressure torsion, swaging, stretching, shock compression and so on. Through experimental observation and numerical simulation, the mechanism of amorphization, microstructure evolution and the effect of amorphization on material properties can be further studied. In this paper, the latest research results of stress-induced amorphization are summarized and prospected, which can provide a new idea and scheme for further understanding of the amorphous transition in MPEA, as well as the design and performance optimization of new alloys.</p>
