Abstract

The glass-forming ability of Fe-based metallic glass Fe 71.2− x C 7.0 Si 3.3 B 5.5 P 8.7 Cr 2.3 Al 2.0 Mo x ( x = 0–6.5 at.%), which can be produced in large quantities and cost-effectively using hot metal and commercial raw materials, was significantly enhanced by optimizing the Mo content, leading to the formation of a fully amorphous rod of 6 mm in diameter with high compressive fracture strength (∼3.3 GPa). It is concluded that the enhanced glass-forming ability is attributed to the suppression of the primary α-(Fe, Mo) phase by the optimum amount of Mo substitution for Fe.

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