Laiqi Zhang, Guangnan Chen, and Zuqing Sun, Investigation on laser cladding of MoSi2 powder on steel, J. Univ. Sci. Technol. Beijing, 12(2005), No. 5, pp. 436-439.
Cite this article as:
Laiqi Zhang, Guangnan Chen, and Zuqing Sun, Investigation on laser cladding of MoSi2 powder on steel, J. Univ. Sci. Technol. Beijing, 12(2005), No. 5, pp. 436-439.
Laiqi Zhang, Guangnan Chen, and Zuqing Sun, Investigation on laser cladding of MoSi2 powder on steel, J. Univ. Sci. Technol. Beijing, 12(2005), No. 5, pp. 436-439.
Citation:
Laiqi Zhang, Guangnan Chen, and Zuqing Sun, Investigation on laser cladding of MoSi2 powder on steel, J. Univ. Sci. Technol. Beijing, 12(2005), No. 5, pp. 436-439.
The feasibility of the fabrication of coatings for elevated-temperature structural applications by laser cladding MoSi2 powder on steel was investigated. A dense and crack-free fine coating, well-bonded with the substrate has been obtained by this technique. This coating consists of FeMoSi, Fe2Si and a small amount of Mo5Si3 due to dilution of the substrate in the coating. The microstructure of the coating is characterized of typical fine dendrites. The dendrites are composed of FeMoSi primary phase, and the interdendritic areas are two eutectic phases of FeMoSi and Fe2Si. The hardness of the coating reaches 845 Hv0.5, 3.7 times larger than that of the steel substrate (180 Hv0.5).
The feasibility of the fabrication of coatings for elevated-temperature structural applications by laser cladding MoSi2 powder on steel was investigated. A dense and crack-free fine coating, well-bonded with the substrate has been obtained by this technique. This coating consists of FeMoSi, Fe2Si and a small amount of Mo5Si3 due to dilution of the substrate in the coating. The microstructure of the coating is characterized of typical fine dendrites. The dendrites are composed of FeMoSi primary phase, and the interdendritic areas are two eutectic phases of FeMoSi and Fe2Si. The hardness of the coating reaches 845 Hv0.5, 3.7 times larger than that of the steel substrate (180 Hv0.5).
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