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ZHANG Xuan-jun, LI Jun, WANG Hui-ping, LI Man-ping. Effect of Adding Y2O3 on Microstructure of TiB2 and TiC Reinforced Ni-Based Composite Coating In-Situ Synthesized by Laser Cladding[J]. Materials and Mechanical Engineering, 2012, 36(7): 17-20.
Citation: ZHANG Xuan-jun, LI Jun, WANG Hui-ping, LI Man-ping. Effect of Adding Y2O3 on Microstructure of TiB2 and TiC Reinforced Ni-Based Composite Coating In-Situ Synthesized by Laser Cladding[J]. Materials and Mechanical Engineering, 2012, 36(7): 17-20.
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Effect of Adding Y2O3 on Microstructure of TiB2 and TiC Reinforced Ni-Based Composite Coating In-Situ Synthesized by Laser Cladding

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  • Received Date: March 06, 2011
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    • Abstract
  • TiB2 and TiC particles reinforced Ni-based composite coatings were in-situ synthesized by laser cladding on Ti6Al4V alloy surface. The effect of adding 2wt% Y2O3 content on microstructure of the coating was studied by X-ray diffraction, optical microscopy, scanning electron microscopy and energy dispersive spectroscopy. The results show that the coating without Y2O3 consisted of reinforcement phases, a small quantity of CrB and the substrate. After adding Y2O3, the size of reinforcement phase TiB2 was refined greatly and and a new phase Ni3Y was found, and the number of CrB compound decreased. A metallurgical bonding was formed between the coating and substrate and the interface became smoother and more compact. The composition transition zone was reduced to a certain extent tecame.
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    • References (10)
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