超音速电弧喷涂Fe基非晶态涂层的电化学行为  

Electrochemical Behavior of Fe-based Coatings Containing Amorphous Phase Deposited by Supersonic Arc Spraying

作　　者：马晓琳[1] 周勇[1] 刘玉栋[1] 

机构地区：[1]西安石油大学材料科学与工程学院,陕西西安710065

出　　处：《热加工工艺》2016年第14期155-157,共3页Hot Working Technology

基　　金：西安石油大学<材料科学与工程>省级优势学科资助(2015);西安石油大学博士基金项目(134010189)

摘　　要：利用超音速电弧喷涂技术在20钢表面制备了含有非晶相的铁基涂层。采用扫描电镜分析了涂层的组织形貌,用X射线衍射仪分析了涂层的相结构,并对涂层与基体20钢在3.5%NaCl溶液中的极化行为和交流阻抗谱行为进行了研究。结果表明:铁基非晶涂层具有较低的自腐蚀电流和较大的电化学反应电阻,涂层的耐蚀性优于20钢。Fe-based coating containing amorphous phase was prepared on the surface of 20 steel matrix by supersonic arc spraying. The surface morphologies of the coating was analyzed by SEM. The phase structure of the coating was analyzed by X-Ray diffraction. The polarization behavior and EIS behavior of the coating and 20 steel substrate in 3.5% NaCl solution were studied. The results show that Fe-based amorphous coating has lower self corrosion current and higher electrochemical reaction resistance. The corrosion resistance of the coating is better than that of 20 steel.

关 键 词：超音速电弧喷涂 Fe基涂层 极化 电化学阻抗 

分 类 号：TG142[一般工业技术—材料科学与工程]