The Influence of La on the Corrosion Resistance of Hot-Dip Aluminized Steel
The influence of the content of rare-earth La on the microstructure and corrosion-resistance of hot-dipped aluminum was studied 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 La is greatly increased.
Z.Y. Zhong, H. Saka, T.H. Kim, E.A. Holm, Y.F. Han and X.S. Xie
J. ba Wen et al., "The Influence of La on the Corrosion Resistance of Hot-Dip Aluminized Steel", Materials Science Forum, Vols. 475-479, pp. 3851-3854, 2005