Fe-based bulk metallic glasses Fe_73.8−xC_7.0Si_3.5B_xP_9.6Cr_2.1Mo_2.0Al_2.0 (x = 3∼9) prepared using hot metal and industrial raw materials

For extensive applications of bulk metallic glasses as structural materials, Fe-based bulk metallic glasses Fe_73.8−xC_7.0Si_3.5B_xP_9.6Cr_2.1Mo_2.0Al_2.0 (at.%, x = 3, 5, 7, 9) have been developed using hot metal, commercial grade pure elements, and industrial ferro-alloys. The alloy Fe_68.8C_7.0Si_3.5B₅P_9.6Cr_2.1Mo_2.0Al_2.0 can be cast into a fully amorphous rod of 5 mm in diameter through a suction casting method. The glass forming ability of the alloys can be successfully assessed by the difference of Gibbs free energy between liquid and solid phases obtained through thermodynamic calculations.