锌铝涂层封孔处理后的防腐性能研究  

Study on Corrosion Resistance of Zinc-Aluminum Coating After Sealing Treatment

作　　者：石振平 王涛 祝和权 杜存山 袁磊 贾恒琼 南阳 SHI Zhenping;WANG Tao;ZHU Hequan;DU Cunshan;YUAN Lei;JIA Hengqiong;NAN Yang(Metals and Chemistry Research Institute,China Academy of Railway Sciences Corporation Limited,Beijing 100081,China)

机构地区：[1]中国铁道科学研究院集团有限公司金属及化学研究所,北京100081

出　　处：《高速铁路新材料》2023年第4期39-44,共6页Advanced Materials of High Speed Railway

基　　金：中国铁道科学研究院集团有限公司科研项目(2022YJ201)。

摘　　要：通过对热喷涂层进行封孔处理来提高热喷涂锌、铝和锌铝涂层的抗腐蚀能力。试验结果显示热喷涂锌、铝和锌铝涂层结合力均大于20 MPa,经过封孔处理之后的热喷涂锌、铝和锌铝涂层(厚度大于等于60μm)的耐中性盐雾时间可以达到1200 h。热喷涂层中性盐雾试验后的XRD谱图物相分析、表面形貌和成分分析结果均表明封孔处理可以提高其抗腐蚀能力。The corrosion resistance of thermal sprayed zinc,aluminum and zinc-aluminum coatings was improved by sealing treatment.The results show that the adhesion of thermal sprayed zinc,aluminum and zinc-aluminum coatings is greater than 20 MPa and the corrosion resistant time in neutral salt spray test for the thermal spray zinc,aluminum and zinc-aluminum coating(the thickness of the coating≥60μm)with sealing treatment can reach 1200 h.The results of XRD,SEM and EDS after the neutral salt spray test of the thermal spray coating show that the sealing treatment can improve the corrosion resistance of spray coating.

关 键 词：锌铝涂层 封孔处理 抗腐蚀 中性盐雾试验 

分 类 号：TG174.4[金属学及工艺—金属表面处理]