采用激光熔覆工艺在45钢表面对Fe60 Nb20 Ti20非晶合金粉末进行不同工艺参数熔覆试验,获得无裂纹且呈冶金结合的涂层.利用扫描电镜、X射线衍射仪、显微硬度计、摩擦磨损试验机对涂层的微观形貌、组成相、显微硬度和摩擦磨损性能进行分析.结果表明,涂层组织为细小的α-Fe过饱和固溶体等轴晶和少量的非晶相.涂层平均硬度为857HV,为基体材料的4倍,耐磨性也明显优于基体材料.
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