High-throughput discovery of ultrahigh-temperature multi-principal element alloys by combinatorial additive manufacturing.

ABSTRACT: Developing structural materials with ultrahigh-temperature capabilities is crucial for aerospace and energy applications, yet achieving a balance of strength, heat-softening resistance, and plasticity remains challenging. Here, we report a tungsten-based W-Re-Os alloy with exceptional mechanical properties up to 1400 °C. Utilizing multi-principal element alloy design principles, three refractory metals with melting points above 3000 °C-W, Re, and Os elements are alloyed using combinatorial additive manufacturing. This approach enabled rapid fabrication of ~500 compositions in a single run. High-throughput micro-indentation testing identified W₄₂Re₃₀Os₂₈ as a standout candidate, exhibiting an ultrahigh yield strength of ~1.8 GPa and ~9% compressive plasticit

SUBMITTER: Wang W 

PROVIDER: S-EPMC12820100 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature