Chinese Journal of Lasers, Volume. 44, Issue 12, 1202009(2017)
Effect of CeO2 Content on Microstructures and Properties of TiB/TiN Coating by Laser Cladding
The TiN/TiB-reinforced titanium matrix composite coatings are prepared on the surface of Ti3Al2V by laser cladding using different CeO2 contents in Ti and h-BN powders as the raw materials. The effects of different CeO2 contents on the strengthening phase microstructure morphology, microhardness and wear property of the laser cladding coating are studied and characterized. The results indicate that the cladding layers of TiB and TiN matrix composite is in-situ synthesized. The addition of appropriate CeO2 refines the structure of the reinforced phase, enhances the microstructural uniformity and improves the microhardness and wear property of coating. When the mass fraction of CeO2 is 2%, the surface hardness of the coatings is up to 1400 HV, and the wear property of coating is optimum.
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Liu Di, Li Min, Huang Jian, Chen Heyang, Sun Ruitian, Li Zhuguo. Effect of CeO2 Content on Microstructures and Properties of TiB/TiN Coating by Laser Cladding[J]. Chinese Journal of Lasers, 2017, 44(12): 1202009
Category: laser manufacturing
Received: Jul. 20, 2017
Accepted: --
Published Online: Dec. 11, 2017
The Author Email: Jian Huang (jhuang@sjtu.edu.cn)