A novel metallic glass, Fe₅₀Cr₁₈Mo₁₀C₂₀Si₂ (FeMG), is developed and proposed as a potential bipolar plate for proton exchange membrane fuel cells. Its metallic glass nature ensures that there is an oversaturation of Cr and Mo in the substrate and that a stable Cr–Mo–C-rich passive film forms with fewer defects. Therefore, FeMG shows higher impedance, higher stability, higher corrosion resistance, and a lower ion dissolution rate than SS316 during immersion and electrochemical tests. A comparison with Ti-based alloys, stainless steels, and other metallic glasses clearly shows that the novel FeMG has outstanding corrosion resistance and low cost, indicating its great potential for commercialization.

中文翻译：

---

一种新型铁基金属玻璃作为质子交换膜燃料电池双极板

开发了一种新型金属玻璃 Fe ₅₀ Cr ₁₈ Mo ₁₀ C ₂₀ Si ₂ (FeMG)，并提议作为质子交换膜燃料电池的潜在双极板。其金属玻璃性质确保了基材中 Cr 和 Mo 的过饱和，并形成稳定的富含 Cr-Mo-C 的钝化膜，且缺陷较少。因此，在浸泡和电化学测试中，FeMG比SS316表现出更高的阻抗、更高的稳定性、更高的耐腐蚀性和更低的离子溶解速率。与钛基合金、不锈钢和其他金属玻璃的比较清楚地表明，新型FeMG具有优异的耐腐蚀性和低成本，表明其巨大的商业化潜力。