Microstructure of Thin Wall Formed by Multi-Layer Laser Cladding

Feng Xiao Huang; Dong Mei Jiang; Wei Jun Zhang; Zhong Jun Zhang; Zhao Hai Yang

doi:10.4028/www.scientific.net/AMM.357-360.1267

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 357-360Microstructure of Thin Wall Formed by Multi-Layer...

Microstructure of Thin Wall Formed by Multi-Layer Laser Cladding

Abstract:

Thin wall was formed by multi-layer laser cladding. The results showed that the microstructure of the thin wall presented obviously and continuously grown dendrite and no white layer appeared between individual multi-layers. The orientated column dendrites were observed in the first layer, which was unhelpful to interfacial bonding. This is related to the effects of the substrate on the composition and cooling rate of the first layer. The interlayer bonding between other multi-layers was epitaxial growth with mutual occlusion and was helpful to the improvement of bonding intensity.

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Periodical:

Applied Mechanics and Materials (Volumes 357-360)

Pages:

1267-1270

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.357-360.1267

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Online since:

August 2013

Authors:

Feng Xiao Huang, Dong Mei Jiang, Wei Jun Zhang, Zhong Jun Zhang, Zhao Hai Yang

Keywords:

Laser Cladding, Microstructure, Thin Wall

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