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Laser melting deposition of dual-phase tungsten-based refractory high-entropy alloys: Face-centered cubic-driven strength and ductility synergy revealed by first-principles calculations
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DOI：10.1016/j.jmst.2025.12.033.png)
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Abstract
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• BCC/FCC dual-phase RHEAs were successfully fabricated via laser melting deposition. • FCC phase facilitates liquid backfilling, which enhances the printability of W-rich RHEAs. • DFT reveal intrinsic elasticity and heterogeneous interfacial bonding behavior. • Dual-phase BCC/FCC architecture enables strength-ductility synergy in RHEAs. • Optimized alloy shows 1635.5 MPa yield, 2294.7 MPa strength and 14.74% compressive strain.
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