LIAN Guo-fu,QUE Lin-zhi,CAO Qiang,ZENG Jia-yi.Effect of CeO2 Content on Microstructure and Properties of Ni45A+TiC Composite Coatings by Laser Cladding[J],52(11):448-456
Effect of CeO2 Content on Microstructure and Properties of Ni45A+TiC Composite Coatings by Laser Cladding
Received:August 29, 2022  Revised:March 13, 2023
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DOI:10.16490/j.cnki.issn.1001-3660.2023.11.039
KeyWord:laser cladding  Ni45A-TiC-CeO2 composite coating  rare-earth-oxides  CeO2  microstructure
           
AuthorInstitution
LIAN Guo-fu School of Mechanical and Automotive Engineering, Fujian University of Technology, Fuzhou , China
QUE Lin-zhi School of Mechanical and Automotive Engineering, Fujian University of Technology, Fuzhou , China
CAO Qiang School of Mechanical and Automotive Engineering, Fujian University of Technology, Fuzhou , China
ZENG Jia-yi School of Mechanical and Automotive Engineering, Fujian University of Technology, Fuzhou , China
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Abstract:
      The tool edge layer needs to have high hardness and wear resistance while the internal organization of the edge is required to be free of defects such as pores and cracks. However, due to the rapid heating and cooling rates in the laser cladding process, there are large thermal and phase change stresses in the cladding layer, and there are differences in physical and chemical properties between the enhanced phase and the base material, which can lead to defects such as coarse grains, pores and cracks in the cladding layer, thus the application of laser cladding technology in tool edge manufacturing is severely limited.
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