Effect of laser energy density on microstructure and properties of laser cladding coating by powder feeding method

In this paper, the microstructure of laser cladding layer was studied under two laser conditions. The microstructure of laser cladding layer was characterized as directional rapid solidification. On the premise of forming a good metallurgical bond between the coating and the matrix, higher laser ene...

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Bibliographic Details
Published in:Journal of physics. Conference series 2019-12, Vol.1347 (1), p.12099
Main Authors: Wang, Xu, Huang, Enze, Guang, Yu Yue, Du, Kaiping, Li, Zhengqiu
Format: Article
Language:English
Subjects:
Coating
Flux density
Laser beam cladding
Lasers
Metallurgy
Microhardness
Microstructure
Physics
Rapid solidification
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Summary:In this paper, the microstructure of laser cladding layer was studied under two laser conditions. The microstructure of laser cladding layer was characterized as directional rapid solidification. On the premise of forming a good metallurgical bond between the coating and the matrix, higher laser energy density was harmful to refine the coating structure and reduce the microhardness of the coating.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1347/1/012099