| 摘要 |
PURPOSE: A fan blade for desulfurization is provided to improve durability by remarkably improving fatigue strength and to prevent a coating layer from being separated. CONSTITUTION: A fan blade for desulfurization comprises Cu 0.05~0.15 weight%, Si 0.1~0.3 weight%, Mg 3.5~5.5 weight%, Ni 0.01~0.08 weight%, Fe 0.2~0.5 weight%, Ti 0.1~0.3 weight%, Mn 0.2~0.5 weight%, Zn 0.1~0.2 weight%, Pb 0.02~0.08 weight%, Cr 0.1~0.3 weight%, and residual Al. A coating layer is formed in the fan blade and comprises Cr3C2 50~60 weight%, C 15~25 weight%, and Ni 20~30 weight%. |
