Effect of Nb Content on Mechanical Behavior and Structural Properties of W/(Zr55Cu30Al10Ni5)100−x Nb x Composite

• DOI: 10.1007/s11661-017-4003-3
• Publication Date: 2017-02-15T15:56:03Z
• Authors: Morteza Mahmoodan; Reza Gholamipour; Shamseddin Mirdamadi; Said Nategh
• Keywords: 02 engineering and technology; 0210 nano-technology

In the present study, (Zr55Cu30Al10Ni5)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/(Zr55Cu30Al10Ni5)98Nb2 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.