在 Q235不锈钢板上利用爆炸喷涂工艺制备名义组分为 Fe51.33Cr14.9Mo25.67Y3.4C3.44B1.26(摩尔分数，%)的铁基非晶涂层。采用扫描电镜、X 射线衍射仪、维氏显微硬度计、摩擦磨损试验机和电化学测量方法对涂层的组织结构、相组成、硬度、摩擦磨损特性和耐腐蚀性能进行表征。显微组织结构分析结果表明，涂层组织均匀、结构致密、平均孔隙率低于2.1%。干磨条件下的磨损行为显示，在同一磨损条件下，非晶涂层的相对耐磨性为基体材料的5倍。摩擦过程中，磨损形式为粘着磨损和磨粒磨损的综合作用，在非晶涂层中粘着磨损起主导作用。涂层在质量分数为3.5% NaCl 水溶液中存在明显的钝化现象，有较低的钝化电流密度和较宽的钝化区间，呈现出优异的耐腐蚀性能。
A metallic glass coating with the composition of Fe51.33Cr14.9Mo25.67Y3.4C3.44B1.26 (mole fraction, %) on the Q235 stainless steel was developed by the detonation gun (D-gun) spraying process. The microstructure and the phase aggregate were analyzed by scanning electron microscopy and X-ray diffractometry, respectively. Microhardness, wear resistance and corrosion behavior were assessed using a Vickers microhardness tester, a ball-on-disk wear testing machine and the electrochemical measurement method, respectively. Microstructural studies show that the coatings possess a densely layered structure with the porosity less than 2.1%. The tribological behavior of the coatings examined under dry conditions shows that their relative wear resistance is five times higher than that of the substrate material. Both adhesive wear and abrasive wear contribute to the friction, but the former is the dominant wear mechanism of the metallic glass coatings. The coatings exhibit low passive current density and extremely wide passive region in 3.5% NaCl solution, thus indicating excellent corrosion resistance.
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