超音速火焰喷涂制备 Fe 基非晶合金涂层的组织与腐蚀性能研究∗

摘要

采用超音速火焰喷涂技术制备了 Fe 基非晶涂层，通过激光粒度分析仪、X 射线衍射仪、扫描电子显微镜等测试技术对 Fe 基合金粉末以及获得的 Fe 基涂层的形貌和显微组织结构进行了研究，结果表明，采用合适的喷涂工艺可以获得非晶态的 Fe 基合金涂层。 Fe 基非晶合金涂层的耐腐蚀性实验表明，获得的非晶合金涂层具有优异的耐腐蚀性。%Fe-based amorphous alloy coating had been deposited by high velocity oxy fuel spraying.Morphology and microstructure of Fe-based alloy powders and Fe-based alloy coating had been studied by laser particle ana-lyzer,X-ray diffraction and scanning electron microscope.The results indicated that a coating with fully amor-phous feature could be achieved using a appropriate spraying process.Furthermore,corrosion behavior of Fe-based amorphous alloy coating has been examined.The amorphous coating possesses well corrosion resistance.