Conventional mechanical testing has significantly advanced our understanding of material behavior under various conditions. However, the mechanical characterization of materials at the intersection of small scales and high strain rates remains largely qualitative and time intensive. This research presents an advance using Laser Induced Particle Impact Testing (LIPIT) as a high-throughput method for determining the mechanical properties of materials under such challenging conditions.
Our study focuses on employing LIPIT for rapid and efficient testing of a diverse range of high entropy alloy samples. These alloys, known for their complex compositions and exceptional properties, were tested under high strain rates using micron-scale amorphous alumina projectiles propelled at supersonic speeds. This approach facilitated a comprehensive analysis of the intrinsic properties of these materials, which are often difficult to discern through traditional testing methods.
Moreover, this research introduces the development of an automated LIPIT system. This innovation marks a substantial step towards more efficient high-throughput material testing, allowing for a much larger dataset and more accurate statistical analysis. The results from this study provide critical insights into the mechanical behavior of high entropy alloys, contributing to the broader understanding of material resilience and failure mechanisms under extreme conditions.