Glass-forming ability, thermal properties, and corrosion resistance of Fe-based (Fe, Ni, Mo, Cr)-P-C-B metallic glasses

Glass-forming ability, thermal properties, and corrosion resistance of Fe-based (Fe, Ni, Mo, Cr)-P-C-B metallic glasses
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Fe基(Fe、Ni、Mo、Cr)-P-C-B金属玻璃的玻璃形成能力、热性能和耐腐蚀性能

DOI:
10.1016/j.jnoncrysol.2017.09.028
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发表时间:
2017-11
影响因子:
3.5
通讯作者:
Zhang W.
Zhang W.
中科院分区:
材料科学2区
文献类型:
--
作者:
Wang S. W.;Li Y. H.;Wang X. W.;Yamaura S.;Zhang W.

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在Fe 80 P12 C4 B4合金中添加适量的Mo、Cr和Ni,不仅提高了过冷液体的热稳定性和非晶形成能力,而且降低了铁基金属玻璃的玻璃化转变温度。Fe 55 Ni 15 Cr 7 Mo 3 P12 C4 B4块体非晶合金(BMG)具有较低的Tg(690 K)、较大的过冷液相区(ΔTx)(60 K)和较高的GFA(临界直径2.5 mm)。Mo、Cr和Ni的共同添加显著提高了BMG在1 M HCl和0.5 M H2SO 4溶液中的耐腐蚀性,与SUS 316 L不锈钢相比具有上级性能。该合金还具有较高的压缩屈服强度~ 3.01 GPa和明显的塑性应变~ 1.2%。低Tg、大ΔTx、高GFA、优异的耐腐蚀性和机械性能的良好组合使得所开发的(Fe,Ni,Cr,Mo)80 P12 C4 B4 BMG显示出作为适合于热塑性加工的耐腐蚀材料的巨大前景。
Co-addition of appropriate Mo, Cr and Ni in the Fe80P12C4B4alloy not only enhances the thermal stability of the supercooled liquid and glass-forming ability (GFA) but also reduces the glass transition temperature (Tg) of the Fe-based metallic glass. The Fe55Ni15Cr7Mo3P12C4B4bulk metallic glass (BMG) exhibits a lowTgof 690 K, large supercooled liquid region (ΔTx) 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 lowTg, large ΔTx, high GFA, excellent corrosion resistance and mechanical properties makes the developed (Fe, Ni, Cr, Mo)80P12C4B4BMGs show great promise as anti-corrosion materials suitable for thermoplastic processing.
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