稀土镧对热浸渗铝钢耐H_2S腐蚀性能的影响  

The Influence of Rare Earth Lanthanum on the Corrosion-resistance to H_2S of Aluminum Hot-dipped Steel

作　　者：胡鹏飞 文九巴[2] 张伟 

机构地区：[1]洛阳工业高专材料工程系,河南洛阳471003 [2]河南科技大学材料科学与工程学院,河南洛阳471003

出　　处：《中国表面工程》2005年第4期34-36,共3页China Surface Engineering

摘　　要：研究了添加稀土镧对热浸镀渗铝钢渗层的组织和耐H2S腐蚀的影响,结果表明随着稀土含量的增加,渗层中富铝层增厚。当稀土添加量由0%升至0.3%时,渗层的耐蚀性逐渐提高,当稀土添加量大于0.3%时,渗层的耐蚀性反而逐渐降低。添加0.3%稀土渗层的耐腐蚀性能最好,为不加稀土的2.5倍。The influence of rare earth lanthanum on the microstructure and corrosion-resistance to H2S of hot-dipped Aluminum was studied. The results showed that the rich aluminum layer in the Aluminum hot-dipped steel becomes thicker with the increase of the rare earth content. The corrosion-resistance is enhanced when rare earth is added from 0 % to 0.3 %, butbestit is decreased when rare earth content exceeds 0.3corrosion-resistance, about 2.5 times as high as that%. The aluminum hot-dip process with 0.3 % rare earth showed the without rare earth.

关 键 词：稀土 渗铝钢 腐蚀 耐蚀性 

分 类 号：TG174.444[金属学及工艺—金属表面处理]