Preparation of plate Fe60Co8Zr10Mo5W2B15 bulk amorphous alloy and its fracture toughness

With processes of are melting, inductive melting and copper mold suction casting, a plate Fe-based bulk amorphous alloy Fe60Co8Zr10Mo5W2B15 with a thickness of 1 mm was prepared. The surfaces and fractures of the cast bulk amorphous alloy were agleam and with typical metallic luster. The glass transition temperature (T-g), supercooled liquid region (Delta T-x) and reduced glass transition temperature (T-rg) of the prepared Fe-based amorphous alloy are 884 K, 63 K, and 0.611 respectively. The fracture toughness of the cast bulk amorphous alloy is at the level of 1.6 MPa (.) m(1/2).