High-temperature deformation behaviors of W/Zr based amorphous interpenetrating composite

• The wide-temperature tensile tests of W/Zr interpenetrating composites were reported.
• It shows evident “work hardening” and excellent properties after tensile test.
• The results show that it can be employed to forming under high temperature.

The high-temperature tensile deformation behaviors of porous tungsten/zirconium-base metallic glass interpenetrating composites were examined systematically spanning a wide range of temperature. The deformations of composite at around supercooled liquid region all presented similar characteristics, including initial linear elastic behavior, obvious stress overshoot followed clear “work hardening”, which is different from that of monolithic BMG at high temperature close to the initial crystallization. The sample after tensile test still exhibited excellent compressive properties. The deformation and strengthening mechanisms were discussed in details. The W substrate dominates the deformation processes of the composite. The amorphous phase is helpful to the deformation and formability of the composite due to its good plastic deformation under high temperature. The results promise that the interpenetrating composite can be employed to produce parts using high-temperature forming techniques.