稀土铈对热浸渗铝钢组织和耐蚀性的影响  

Influence of Rare Earth Cerium on the Microstructure and Corrosion Resistance of Hot-dipped Aluminum Steel

作　　者：胡鹏飞[1] 文九巴[1] 李全安[1] 张荥渊[1] 李晓源[1] 

机构地区：[1]河南科技大学材料科学与工程学院,河南洛阳471003

出　　处：《表面技术》2004年第1期37-39,共3页Surface Technology

基　　金：河南省高校杰出科研人才创新工程项目(2001kycx009)

摘　　要：　研究了添加稀土铈对热浸渗铝钢渗层组织和含CO2、H2S水介质条件下耐腐蚀性的影响,结果表明随着稀土含量的增加,渗层中富铝层增厚。CO2腐蚀介质下当稀土添加量为0%～1.0%时,随着稀土含量的增加,渗层的耐蚀性逐渐提高,当稀土添加量为1.0%时,渗层的耐蚀性最好,为不加稀土的2倍。在H2S腐蚀介质下,结果与CO2腐蚀结果类似,当稀土添加量为1.0%时,渗层的耐蚀性最好,为不加稀土的3倍。The influence of rare earth cerium on the microstructure and corrosion-resistance of hot-dipped aluminum in water condition containing CO_2 and H_2S was studied. The results show that the rich aluminum layer in the hot-dipped aluminum becomes much thicker with the increase of the content of rare earth. In corrosive medium of CO_2,the corrosion resistance is enhanced when rare earth is added from 0% to 1.0%,the hot-dipped aluminum with 1.0% rare earth possesses the best corrosion resistance and it is 2 times as much as that of without rare earth. The result of corrosion of H_2S is resemble to that of CO_2,the hot-dipped aluminum with 1.0% rare earth possesses the best corrosion-resistance and it is 3 times as much as that of without rare earth.

关 键 词：稀土元素 热浸渗铝钢 CO2腐蚀 耐蚀性 铈 组织结构 扩散层 

分 类 号：TG174.443[金属学及工艺—金属表面处理]