Title of article
TiC particulate composite coating produced in situ by laser cladding
Author/Authors
Yang، نويسنده , , Sen and Zhong، نويسنده , , Minlin and Liu، نويسنده , , Wenjin، نويسنده ,
Pages
6
From page
57
To page
62
Abstract
A composite coating with TiC particles of various shapes and sizes embedded in nickel based alloy has been in situ synthesized by laser melting a precursor mixture of nickel based alloy powder, graphite and titanium powders. The experiment result showed that the coating epitaxially grew from the substrate with excellent bonding between the coating and the carbon steel substrate. The coating is uniform, continuous and free of pores and cracks, and about 0.6 mm thick. The microstructure of the coating is mainly composed of γ-Ni dendrite, a small amount of interdendritic (γ-Ni+M23C6) eutectic, and dispersed TiC particles. The volume fraction of TiC particles and the microhardness gradually increased from the bottom to the top of the coating layer.
Keywords
In situ formation , Nickel based alloy , Laser cladding , gradient distribution , TiC particle
Journal title
Astroparticle Physics
Record number
2061916
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