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Meeting 2026 TMS Annual Meeting & Exhibition
Symposium Advances in Multi-Principal Element Alloys V: Mechanical Behavior
Presentation Title Tailored L2₁/B2 Co-Precipitation in BCC Multi-Principal Element Superalloys
Author(s) Hyeji Im, Yixiao He
On-Site Speaker (Planned) Hyeji Im
Abstract Scope In this study, a BCC-based multi-principal element superalloy system was designed to promote the co-precipitation of L2₁ and B2 phases for enhanced mechanical performance via dual-phase strengthening. The alloy composition was optimized within the compositional space of BCC-strengthened phases. Phase size, distribution, and volume fractions were systematically tailored using CALPHAD calculations to achieve a balance between strength and ductility while suppressing the formation of brittle intermetallics. Elemental contents were systematically varied to investigate their effects on microstructure and mechanical behavior.
Proceedings Inclusion? Planned:
Keywords High-Entropy Alloys, High-Temperature Materials, Characterization

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