Characterization of Cold-Sprayed FeAl/WC Nanocomposite Coating

Abstract:

A FeAl/WC nanocomposite coating was produced by cold spraying of mechanically alloyed Fe/Al/WC composite powder assisted with annealing treatment. The microstructure and grain size of FeAl/WC nanocomposite coating before and after annealing treatment were characterized. The results indicated that as-sprayed Fe (Al)/WC nanocomposite coating presented a dense microstructure with lamellar structure. The phase transformation from Fe (Al) solid solution to FeAl intermetallics within as-sprayed nanocomposite coating occurred when annealed at 550°C for 25 h. The annealed nanocomposite coating was composed of nanograins of size ranging from 50-100 nm and the grain size of FeAl increased with increasing the annealing time. Moreover, the effect of annealing temperature on the microstructure of the FeAl/WC nanocomposite coating was investigated.

• Periodical: Applied Mechanics and Materials (Volumes 423-426)
• Pages: 63-66
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.423-426.63
• Online since: September 2013
• Authors: Hong Tao Wang, Ruo Yu Wang, Xiao Chen, Xiao Bo Bai, Zeng Xiang Dong, Gang Chang Ji
• Keywords: Characterization, Cold Spraying, FeAl/Wc, Mechanical Alloying, Nanocomposite

References

[1] N.S. Stoloff: Mater. Sci. Eng. A. Vol. 258 (1998), p.1.

[2] S.C. Deevi and V.K. Sikka: Intermetallics. Vol. 4 (1996), p.357.

[3] R. Subramanian and J.H. Schneibel: Mater. Sci. Eng. A. Vol. 244 (1998), p.103.

[4] M. Krasnowski and T. Kulik: Intermetallics. Vol. 15 (2007), p.1377.

[5] K. Wolski, G. Le Caër, P. Delcroix, R. Fillit, F. Thévenot and J. Le Coze: Mater. Sci. Eng. A, Vol. 207 (1996), p.97.

DOI: 10.1016/0921-5093(96)80006-2

[6] H.P. Klug and L.E. Alexander: London: John Wiley & Sons. (1954).