Effect of V substitution on mechanical properties and fracture behavior of ZrCuNiAl bulk metallic glass

作者：Aghamiry Eshag; Gholampour Reza; Khademian Nima^*

来源：Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing, 2012, 547: 80-85.

DOI：10.1016/j.msea.2012.03.084

• Bulk metallic glass
• Fracture surface
• Shear band
• Mechanical testing

Synthesis of bulk metallic glasses (BMGs) has been one of the interesting topics of research in materials science during this decade due to their very attractive physical and mechanical properties. In the present study, Zr65Cu17.5-xNi10Al7.5Vx (at%) alloy has been synthesized by suction casting technique. Differential scanning calorimetry (DSC), X-ray diffraction (XRD) and scanning electron microscopy (SEM) were used to the analysis of thermal stability and phase formation of samples. Furthermore, the effects of microstructures on the compressive deformation and fracture behaviors of the samples at the strain rate of 1 x 10(-4) s(-1) at room temperature were discussed. The increase of vanadium content changes the crystallization mode of the samples and leads to change of mechanical properties.