Abstract
Fe-Al intermetallics with remarkable high-temperature intensity and excellent erosion, high-temperature oxidation and sulfuration resistance are potential low cost high-temperature structural materials. But the room temperature brittleness induces shape difficult and limits its industrial application. The Fe-Al intermetallic coatings were prepared by high velocity arc spraying technology with cored wire on 20G steel, which will not only obviate the problems faced in fabrication of these alloys into useful shapes, but also allow the effective use of their outstanding high-temperature performance. The Fe-Al/WC intermetallic composite coatings were prepared by high velocity arc spraying technology on 20G steel and the oxidation performance of Fe-Al/WC composite coatings was studied by means of thermogrativmetic analyzer at 450, 650 and 800°C. The results demonstrate that the kinetics curve of oxidation at three temperatures approximately follows the logarithmic law. The composition of the oxidized coating is mainly composed of Al2O3, Fe2O3, Fe3O4 and FeO. These phases distribute unevenly. The protective Al2O3 film firstly forms and preserves the coatings from further oxidation.
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References
McKamey C G, DeVan J H, Tortorelli P E, et al. A review of recent development in Fe3Al-based alloys[J]. J Mater Res, 1991(6): 1779–1805.
XU Bin-shi, ZHU Shao-hua. Surface Engineering and Maintenance[M]. Beijing: China Machine Press, 1996. (in Chinese)
LI D Q, XU Y, LI T L. Oxidation behavior of FeAl alloys with and without titanium[J]. Journal of Materials Science, 2001, 36: 979–983.
XU C H, GAO W, HE Y D. High temperature oxidation behavior of FeAl intermetallics: oxide scales formed in ambient atmosphere [J]. Scripta Mater, 2000, 42: 975–980.
Natesan K. Corrosion performance of iron aluminides in the mixed-oxidant environments [J]. Material Science and Engineering A, 1998, 258: 126–134.
ZHU Zi-xin, XU Bin-shi, MA Shi-ning, et al. Sliding wear behavior of high velocity arc sprayed Fe-Al coating [J]. China Welding, 2003, 12(1): 1–5.
ZHU Zi-xin, XU Bin-shi, MA Shi-ning, et al. Study on microstructure and properties of high velocity arc sprayed Fe3Al intermetallic coating [J]. China Welding, 2002, 11(1): 12–15.
ZHU Zi-xin, XU Bin-shi, ZHANG Wei, et al. Microstructure and properties of iron aluminide composite coatings prepared by high velocity wire arc spraying[J]. Journal of Materials Engineering, 2002(5), 18–21. (in Chinese)
ZHU Zi-xin, XU Bin-shi, MA Shi-ning, et al. Sliding wear behavior of high velocity arc sprayed Fe-Al coating[J]. China Welding, 2003, 12(1): 1–5.
XU Bin-shi, ZHU Zi-xin, ZHANG Wei, et al. The microstructure and high temperature sliding wear behavior of Fe-Al coating produced by high velocity arc spraying [A]. Proceedings of the 2004 International Conference on Thermally Spraying [C]. Osaka, 2004.
ZHANG Wei, ZHANG Shu, XU Wei-pu, et al. Tribological properties of high velocity arc sprayed Fe-Al based composite coatings at elevated temperature [J]. Trans Nonferrous Met Soc China, 2004, 14 (S2): 379–382.
CHEN Yong-xiong, ZHU Zi-xin, LIU Yan, et al. Configuration optimization of high velocity arc spraying gun [J]. Trans Nonferrous Met Soc China, 2004, 14(S2): 100–102.
XU Bin-shi, LIANG Xiu-bing, MA Shi-ning. Study on a new designed gun for high velocity arc spraying[J]. China Surface Engineering, 1998, 11(3): 1–19. (in Chinese)
LI Mei-shuan. High Temperature Corrosion of Metal[M]. Beijing: Metallurgical Industry Press, 2001. (in Chinese)
MEI Jian-ping, HE Hua-ying, XUE Feng, et al. The effects of Ce addition on the high temperature oxidation resistance of Fe3Al alloys [J]. Functional Material, 1995, 26(6): 374–378.
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Foundation item: Project(50235030) supported by the National Natural Science Foundation of China; Project(98BK014) supported by the Foundation of State Economy Trade Committee of China
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Meng, Fj., Xu, Bs., Zhu, S. et al. Oxidation performance of Fe-Al/WC composite coatings produced by high velocity arc spraying. J Cent. South Univ. Technol. 12, 221–225 (2005). https://doi.org/10.1007/s11771-005-0045-6
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DOI: https://doi.org/10.1007/s11771-005-0045-6