W-Ni-Fe-Hf series alloy with different Hf contents were prepared through liquid phase sintering. Influences of Hf on mechanical properties, shielding effect and microstructure of W-Ni-Fe-Hf alloy are analyzed and discussed by using SEM, XRD device, metalloscope, BH1326 gamma-ray shield tester and so on. The results of the study show that adding the microelement Hf could increase dispersity of powder effectively. Hf distributes in the binding phase ofW-Ni-Fe-Hf series alloy (percentage) as an intermediate phase. This intermediate phase not only could refine crystals, but also has good affinity ...
