论文部分内容阅读
为增强海洋工程装备中关键部件的耐磨与抗腐蚀性能,采用超音速火焰喷涂(HVOF)技术在不锈钢基体表面喷涂Fe基非晶涂层。利用SEM、XRD和DSC等,对该涂层的微观组织、相结构及性能进行了分析。研究了喷涂中煤油流量、氧气流量、喷距对非晶涂层微观组织和性能的影响。结果表明,超音速火焰喷涂制备的铁基非晶涂层组织结构均匀致密,呈完全非晶态结构。喷涂工艺参数对涂层的显微硬度具有重要影响,在优化工艺参数下获得的显微硬度为912.1 HV0.3。不锈钢喷涂非晶涂层后耐磨性提高。
In order to enhance the wear resistance and corrosion resistance of key components in offshore engineering equipment, Fe-based amorphous coating was sprayed on the surface of a stainless steel substrate by using a supersonic flame spraying (HVOF) technique. The microstructure, phase structure and properties of the coating were analyzed by SEM, XRD and DSC. The effects of kerosene flow rate, oxygen flow rate and spray distance on the microstructure and properties of amorphous coatings were investigated. The results show that the microstructure of the iron-based amorphous coating prepared by supersonic flame spraying is uniform and compact with a completely amorphous structure. Spraying process parameters have an important influence on the microhardness of the coating, and the microhardness obtained under the optimized process parameters is 912.1 HV0.3. Stainless steel spray coating after coating increased abrasion resistance.