不锈钢表面Ti-O-Y涂层的防腐性能  

Research on the Anticorrosion Protective Coating with Ti-O-Y of the Stainless Steel

作　　者：颜琦[1] 李巍 张绍锦[1,2] 张浩[2] 

机构地区：[1]福建工程学院材料科学与工程系,福建福州350108 [2]福州大学材料科学与工程学院,福建福州350108

出　　处：《华侨大学学报（自然科学版）》2012年第2期168-171,共4页Journal of Huaqiao University(Natural Science)

基　　金：福建工程学院人才引进科研启动项目(GY-Z10007);福建工程学院横向课题(GY-H-10005)

摘　　要：采用溶胶-凝胶法,经过涂覆、固化、烧结,在不锈钢表面获得不同Ti和Y摩尔比的Ti-O-Y复合涂层,并通过X衍射(XRD)、扫描电镜(SEM)、电化学腐蚀和高温氧化测试方法,研究其结构和耐蚀性能.结果表明:Ti与Y摩尔比为10∶3的涂层的自腐蚀电位最高,效果最好;不锈钢基材的氧化速率降低,是由于Y离子的掺杂阻碍的氧的向内扩散,起到高温抗氧化的作用.A serials of Ti-O-Y anticorrosion protective oxide coatings on stainless steel were fabricated by a sol-gel method. The structural feature and anti-corrosive properties of the Ti-O-Y coatings were studied by X-ray diffraction （XRD）, scanning electron microscopy （SEM）, electrochemical corrosion and high-temperature oxidation. The results demonstrated that self-corrosive potential of the coating reaches a maximum value when the corrosion potentialthe molar ratio of Ti ： Y is 10 ： 3. It suggests the decreases of the oxidation rate of the stainless steel relates to the doping of Y ion to hinder the inward diffusion of the O2- at the high temperature.

关 键 词：不锈钢 钇 防腐涂层 溶胶-凝胶法 

分 类 号：TG174.445[金属学及工艺—金属表面处理]