中文摘要：

本文采用自主研发的高效能超音速等离子喷涂系统（HEPJet）制备了Fe基非晶合金涂层，以非晶含量为评价指标，通过正交法优化了喷涂工艺参数。采用扫描电子显微镜（SEM）、X-射线衍射仪（XRD）等手段对涂层的组织结构和非晶含量进行了分析研究，并测定了涂层的孔隙率、显微硬度、结合强度、沉积效率等常规性能和指标。分析了影响涂层非晶含量高低的主要原因，并提出了相应措施。结果表明：超音速等离子喷涂射流的高温、高速，且温度和速度可大范围调节的特点有利于对材料急热急冷，在涂层中保持或进而提高原粉体材料中的非晶含量，涂层的综合性能优于超音速火焰喷涂（HVOF）制备的Fe基非晶涂层。

英文摘要：

The Fe based amorphous alloy coatings prepared by self-developed high efficiency supersonicplasma spraying technology(HEPJet).this subject uses orthogonal method to optimize the supersonic plasmaspraying parameters by taking amorphous content as the main index for evaluating and uses scanning electronmicroscopy(SEM),X-ray diffraction(XRD)and other methods to analyze and study the organizational structure,micro formation mechanism and thermos ability of the coating.The micro hardness,porosity,bond strength,deposition efficiency and other conventional properties of Fe based amorphous coating prepared by supersonicplasma spraying are measured.Main factors that affect the amorphous content level of coating are analyzed andcorresponding measures are raised.The results show that:Supersonic plasma spray is of high temperature andspeed,which can be adjusted in large scale.These characters are if favor of rapidly heating or cooling the material,improving amorphous content of the coating.HEPJet spraying coating performance superior to high velocityoxygen flame spraying(HVOF).