• • Dynamic compressive strength of RTAs exceeds 2 GPa, enabling high-velocity penetration; density above 10 g·cm−3 ensures high kinetic energy retention, critical for defeating advanced armor.
• • Addition of Ti and Nb in W-Zr alloys suppresses brittle W2Zr phase formation; when total content exceeds 20%, XRD shows no W2Zr, improving plastic deformation capability.
• • W-Zr-Ti alloys transition from W2Zr+BCC dual-phase to single BCC solid solution with increasing Ti content, as shown in 1400 °C isothermal section, enabling property tuning.
• • Solid-state sintering above 1500 °C is required for W-Zr-Ti-Nb alloys due to lack of low-melting eutectic, posing challenges for densification and scalability.