In this study, the precursor mixtures of Fe-Cr-C-B alloy powders and 0, 10 and 20 wt% Ti₃SiC₂ is successfully cladded on 16Mn steel substrate by laser cladding (LC). Microstructure and properties of composite coatings are explored by using X-ray diffractometer (XRD), scanning electron microscopy (SEM), energy dispersive spectrometer (EDS), X-ray photoelectron spectra (XPS), electrochemical workstation, Vickers hardness tester and UMT-2 tribo-meter. Results show that the phases in the composite coating with Ti₃SiC₂ addition mainly are super saturated solid solution α-Fe, hard phases such as eyeball-like Al₂O₃/TiC composite ceramics, Ti(B,C)₂, TiC, Fe₃C, γ-(Fe, Ni)/(Cr, Fe)₂₃C₆ laminar eutectics and Ti₃SiC₂ etc. The microhardness, wear and corrosion resistance of composite coatings increase with the weight percent of Ti₃SiC₂ increasing from 0 to 20%. The existence of super saturated solid solution α-Fe, hard phases such as Al₂O₃/TiC composite ceramics, Ti(B,C)₂, TiC and Fe₃C etc. and the Ti₃SiC₂ solid lubricant contribute to the higher microhardness and wear resistance. The increased corrosion resistance of coatings is attributed to the fact that Cr is the important element which increases the corrosion resistance of the composite coating. With Ti₃SiC₂ addition increasing, more Ti atoms are easy to interact with C atoms to form TiC carbides, which remain higher content of free Cr atoms in composite coatings.

在这项研究中，通过激光熔覆（LC）将Fe-Cr-CB合金粉末与0、10和20 wt％Ti ₃ SiC ₂的前体混合物成功地包覆在16Mn钢基底上。使用X射线衍射仪（XRD），扫描电子显微镜（SEM），能量色散谱仪（EDS），X射线光电子能谱（XPS），电化学工作站，维氏硬度计和UMT-来探索复合涂层的微观结构和性能。 2摩擦表。结果表明，添加Ti ₃ SiC ₂的复合涂层中的相主要为超饱和固溶体α-Fe，眼球状Al ₂ O ₃ / TiC复合陶瓷，Ti（B，C）₂，TiC等硬相。，铁₃ C，γ-（Fe，Ni）/（Cr，Fe）₂₃ C ₆层状共晶和Ti ₃ SiC ₂等。随着Ti ₃ SiC ₂的重量百分含量的增加，复合涂层的显微硬度，耐磨性和耐腐蚀性增加。 0至20％。存在超饱和固溶体α-Fe，Al ₂ O ₃ / TiC复合陶瓷等硬质相，Ti（B，C）₂，TiC和Fe ₃ C等以及Ti ₃ SiC ₂固体润滑剂有助于更高的显微硬度和耐磨性。涂层耐蚀性的提高归因于以下事实：铬是增加复合涂层耐蚀性的重要元素。随着Ti ₃ SiC ₂添加量的增加，更多的Ti原子易于与C原子相互作用而形成TiC碳化物，从而在复合涂层中保留了较高的游离Cr原子含量。