The Effect of La on the Microstructure and Corrosion-resistance of Hot-dipped Aluminizing Steel  

作　　者：WENJiu-ba ZHANGWei LIXiao-yuan LIQuan-an 

机构地区：[1]SchoolofMaterialsScienceandEngineering,HenanUniversityofScienceandTechnology,Luoyang471003,China [2]SchoolofMaterialsScienceandEngineering,Xi＇anUniversityofTechnology,Xi＇an710048,China

出　　处：《材料热处理学报》2004年第05B期1291-1294,共4页Transactions of Materials and Heat Treatment

摘　　要：The effect of the content of rare-earth La on the microstructure and corrosion-resistance of hot-dipped aluminum was investigated in this paper. The results show that, under the same technology conditions, the thickness of hot-dipped aluminizing layer by adding the appropriate content of rare-earth La is about 2～3 times as much as that without rare-earth La, and the microstructure of hot-dipped aluminizing layer has also greatly changed ,and a great deal of phase Fe3Al was precipitated along the boundary of α phase. The corrosion resistance of the hot-dipped layer with rare-earth is greatly increased.The effect of the content of rare-earth La on the microstructure and corrosion-resistance of hot-dipped aluminum was investigated in this paper. The results show that, under the same technology conditions, the thickness of hot-dipped aluminizing layer by adding the appropriate content of rare-earth La is about 2~3 times as much as that without rare-earth La, and the microstructure of hot-dipped aluminizing layer has also greatly changed ,and a great deal of phase Fe3Al was precipitated along the boundary of a phase. The corrosion resistance of the hot-dipped layer with rare-earth is greatly increased.

关 键 词：显微结构 耐蚀性 稀土 热浸 铝钢 

分 类 号：TG161[金属学及工艺—热处理] TG174.443[金属学及工艺—金属学]