LaF₃ Influences on Wear Resistance of TiC/Ni Cladding Layer by Laser Cladding In Situ Fabricated

Abstract:

The TiC/Ni composite coating was prepared by Laser Cladding In-situ Synthesis on the surface of damper plate with Ni--Ti-Mo-C -LaF₃ powder．Microstructure and Wear resistance have been studied throughout EPMA、SEM and M—2000 Friction and Wear Tester．It was found that the microstructure got more homogenized grain fineness became finer, TiC distributed better and heterogeneous phase decreased, as adding moderate rare earth LaF3. When the content of LaF₃ was 1%, the highest microhardness was got. While the optimal wear resistance properties were obtained with 2% LaF₃. The laser cladding with excessive LaF₃ has more TiC particle segregation which induces hardness and wear resistance of cladding layer.

• Periodical: Advanced Materials Research (Volume 549)
• Pages: 335-339
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.549.335
• Online since: July 2012
• Authors: Cheng Qiang Wang, Li Juan Wang, Jiang Qiao Wu, Zi Zhen Chen, Yong Jun Niu
• Keywords: Compound Coating, In Situ Synthesis, Laser Cladding, TiC Particle

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