Effect of Nb Content on Mechanical Behavior and Structural Properties of W/(Zr 55 Cu 30 Al 10 Ni 5 ) 100− x Nb x Composite

In the present study, (Zr 55 Cu 30 Al 10 Ni 5 ) 100− x Nb ( x =0,1,2,3) bulk metallic glass matrix/tungsten wire composites were fabricated by infiltration process. Structural studies were investigated by scanning electron microscopy and X-ray diffraction method. Also, mechanical behaviors of the materials were analyzed using quasi-static compressive tests. Results indicated that the best mechanical properties i.e. , 2105 MPa compressive ultimate strength and 28 pct plastic strain before failure, were achieved in the composite sample with X = 2. It was also found that adding Nb to the matrix modified interface structure in W fiber/(Zr 55 Cu 30 Al 10 Ni 5 ) 98 Nb 2 since the stable diffusion band formation acts as a functionally graded layer. Finally, the observation of multiple shear bands formation in the matrix could confirm the excellent plastic deformation behavior of the composite.