Stress distribution of bulk metallic glass/metal laminate composites during uni-axial fracture

The fracture behaviors of laminated composites of bulk metallic glass (BMG (Vitreloy1))/crystalline layer have been examined via both experimental and simulation approaches. The specimen array of BMG/Zr/BMG by an electron-discharge bonding technique showed a completed bonding, and the fracture tests showed that when the number of BMG layer increases up to three layers, the fracture energy for the laminated specimen is increased. The simulation results of the laminated composite exhibited that the enhancement of fracture energy for the composites is mainly due to the shear stress distribution through the interface between BMG layers.