High-performance Fe-based amorphous (FA) composite coating was successfully fabricated on 304 stainless steels via employing a novel feedstock of FA powders partially clad with molybdenum (Mo). The microstructure, tribological and corrosion behavior of FA/Mo composite and pure FA coating coating were comparatively investigated. Experimental results show that with 20 vol. % Mo incorporation, FA/Mo composite coating became remarkably denser with porosity of 0.46 ± 0.12 % and attained a 35 % increase in fracture toughness. As a result, compared to the pure FA coating, superior wear resistance including lower specific wear rate and coefficient of friction (COF) were achieved in the composite coating. In addition, the dominant wear mechanism of coating changed from abrasive wear to oxidative wear. Furthermore, due to its favorable amorphous composite microstructure with less pores and more hydrophobic surface, the FA/Mo coating simultaneously obtained better corrosion resistance. The present findings may provide a valuable strategy to prepare FA protective coating for industrial application.

通过采用部分包覆钼 (Mo) 的新型 FA 粉末原料，在 304 不锈钢上成功制备了高性能铁基非晶 (FA) 复合涂层。对比研究了FA/Mo复合涂层和纯FA涂层的微观结构、摩擦学和腐蚀行为。实验结果表明，与 20 卷。% Mo 掺入，FA/Mo 复合涂层变得非常致密，孔隙率为 0.46 ± 0.12%，断裂韧性增加了 35%。因此，与纯 FA 涂层相比，复合涂层实现了优异的耐磨性，包括更低的比磨损率和摩擦系数 (COF)。此外，涂层的主要磨损机制由磨粒磨损转变为氧化磨损。此外，由于其有利的无定形复合微观结构、更少的孔隙和更疏水的表面，FA/Mo 涂层同时获得了更好的耐腐蚀性。本研究结果可为制备工业应用的 FA 保护涂层提供有价值的策略。