• Arroyave, Raymundo
• Pharr, George
• Butler, Brady
• Allaire, Douglas
• Lewis, Daniel
• Salas, Daniel
• Karaman, Ibrahim
• Hastings, Trevor
• Mulukutla, Mrinalini
• Khatamsaz, Danial
• Srivastava, Ankit
• Xu, Wenle
• Person, Nicole
• Skokan, Matthew
• Miller, Braden

Abstract

In this study, we introduce a groundbreaking framework for materials discovery, we efficiently navigate a vast phase space of material compositions by leveraging Batch Bayesian statistics in order to achieve specific performance objectives. This approach addresses the challenge of identifying optimal materials from an untenably large array of possibilities in a reasonable timeframe with high confidence. Crucially, our batchwise methods align seamlessly with existing material processing infrastructure for synthesizing and characterizing materials. By applying this framework to a specific high entropy alloy system, we demonstrate its versatility and robustness in optimizing properties like strain hardening, hardness, and strain rate sensitivity. The fact that the Bayesian model is adept in refining and expanding the property Pareto front highlights its broad applicability across various materials, including steels, shape memory alloys, ceramics, and composites. This study advances the field of materials science and sets a new benchmark for material discovery methodologies. By proving the effectiveness of Bayesian optimization, we showcase its potential to redefine the landscape of materials discovery.

Topics

• impedance spectroscopy
• phase
• steel
• composite
• hardness
• ceramic