采用激光熔覆技术在304不锈钢表面合成了TiC-Cr7C3-CNTs增强涂层.利用X射线衍射仪测试了涂层相组成、电子扫描电镜和透射电镜观察了涂层的显微组织,采用硬度计测试了涂层的硬度.结果表明,涂层中TiC和Cr7C3颗粒分布较均匀,同时还有CNTs.在涂层顶部还有易碎的TiO2和TiC组成的陶瓷层.涂层无裂缝、无孔洞且与基体结合良好.涂层的平均硬度高达365 HV0.2,远高于基本的平均硬度235 HV0.2.
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