| Abstract Scope |
High-temperature mechanical testing is often constrained by material availability, specimen geometry, and thermal boundary conditions, limiting efficient evaluation of advanced manufacturing materials and complex microstructures. This work presents tailored, Gleeble-based experimental methodologies that enable representative characterization of high-temperature mechanical behavior while minimizing material consumption and maximizing experimental throughput. Custom specimen geometries, grip fixtures, and thermal protocols have been developed for monolithic and graded materials produced by laser powder bed fusion, directed energy deposition, transient liquid-phase bonding, and conventional processing. Applications span resource-limited refractories (e.g., C103, Cb752, Ta-W, Mo-Re, W-Re), ultra-high-temperature ceramics (e.g., TaC, TaN), and compositionally graded interfaces (e.g., GRCop-42/IN625, Cu/W). High-temperature testing is coupled with conventional mechanical property measurements, strain hardening analysis, strain-rate jump testing, and digital image correlation to resolve deformation behavior at extreme temperatures. Together, these approaches demonstrate how intentionally designed experimental methodologies enable efficient, representative, and mechanism-based interrogation of high-temperature mechanical behavior across diverse material systems. |