采用高速电弧喷涂技术在45钢基体上制备了FeCrWNbSiB非晶纳米晶涂层和1Cr18Ni9Ti涂层,采用扫描电镜和X射线衍射仪等对非晶纳米晶涂层的组织结构进行了分析,利用电化学手段对两种涂层的耐腐蚀性能进行研究.结果表明:非晶纳米晶涂层主要由非晶相和a(Fe,Cr)纳米晶相组成,非晶相的体积分数为57.2％,纳米晶平均尺寸为29.2 nm;该涂层呈层状结构,结合紧密,孔隙率为3.8％；与1Cr18Ni9Ti涂层相比,非晶纳米晶涂层的耐腐蚀性能较好.
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