| Abstract Scope |
Multi-principal element alloy (MPEA) research initially focused on equiatomic compositions; however, non-equiatomic compositions have recently garnered interest with some exhibiting enhanced mechanical properties or phase stability. Computational approaches are being developed to efficiently explore this vast compositional space. Such studies require complementary experimental investigations to be done in parallel that are guided by and serve as a benchmark for computational results. This requires development of novel high-throughput approaches, as conventional fabrication, characterization, and testing techniques can be prohibitively time consuming and costly. In this work, multi-target co-sputtering was utilized to deposit MoNbTaW with variable compositions across a silicon wafer. Subsequently, thousands of freestanding micro-mechanical test specimens of varying composition were fabricated simultaneously through microfabrication techniques. Characterization was completed by employing methods such as SEM, TEM, and in-situ mechanical testing. These results were then used to determine compositions with unique or encouraging properties to be investigated further. |