Wang S, Li Y, Wang X, et al. Journal of Non-Crystalline Solids, 2017, 476: 75-80.

Abstract:

Co-addition of appropriate Mo, Cr and Ni in the Fe₈₀P₁₂C₄B₄ alloy not only enhances thethermal stability of the supercooled liquid and glass-forming ability (GFA) but also reduces theglass transition temperature (T_g) of the Fe-based metallic glass. The Fe₅₅Ni₁₅Cr₇Mo₃P₁₂C₄B₄bulk metallic glass (BMG) exhibits a low T_g of 690 K, large supercooled liquid region (ΔT_x) of 60 K, and high GFA with a critical diameter of 2.5 mm. The co-addition of Mo, Cr and Ni remarkably improves the corrosion resistance of the BMGs in 1 M HCl and 0.5 M H₂SO₄solutions, which is superior compared to the SUS316L stainless steel. The alloys also possess high compressive yield strength of ~ 3.01 GPa with distinct plastic strain of ~ 1.2%. The good combination of low T_g, large ΔT_x, high GFA, excellent corrosion resistance and mechanical properties makes the developed (Fe, Ni, Cr, Mo)₈₀P₁₂C₄B₄ BMGs show great promise as anticorrosion materials suitable for thermoplastic processing.

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