Fracture behavior of bulk metallic glass/metal laminate composites

The fracture behaviors of laminated composites of bulk metallic glass (BMG (Vitreloy 1))/crystalline layer have been examined. The composites stacked by BMG/thin Zr layer (25 μm) have been bonded by electron-discharge bonding technique. The fracture tests have been carried out by non-standard self-designed subsize-charpy tester. When the number of BMG layer increases up to three layers, the fracture energy for the laminated specimen is increased due to crack redirection and absorption of the fracture energy at the crystalline layer during fracture.