85 / 2024-09-28 16:45:18
Microstructure and Properties of Particle-Reinforced Inconel 625 Coatings by Wire-Powder Synergistic High-Speed Laser Cladding
high-speed laser cladding,wire-powder synergistic,Inconel 625,carbide particles,wear resistance,corrosion resistance
全文录用
晨昕 贾 / 中国石油大学(华东)
美艳 李 / 中国石油大学(华东)
成明 苏 / 陕西天元智能再制造股份有限公司
彬 韩 / 中国石油大学(华东)
Two particle-reinforced Inconel 625 coatings were prepared via wire-powder synergistic high-speed laser cladding. In this process, Inconel 625 was employed as the feeding wire, while B4C and Cr3C2 particles served as the feeding powders. The phase composition and microstructure of the two coatings were analyzed, and the microhardness, wear resistance, and corrosion resistance of the two coatings were evaluated. The results indicate that the main phase in both coatings is γ-Ni. The microstructure of both coatings is fine and dense, with segregation of Nb, Cr, Mo, and C elements at the grain boundaries, which indicated precipitation of the Laves phase. Moreover, unmelted Cr3C2 particles were observed in the middle of the Inconel 625+Cr3C2 coating. The microhardness distribution of both coatings is uniform, with the Inconel 625+B4C coating exhibiting a higher microhardness than the Inconel 625+Cr3C2 coating. The Inconel 625+B4C coating showed better wear resistance. Both coatings showed passivation during the electrochemical test, the Inconel 625+Cr3C2 coating showed better corrosion resistance. In conclusion, the Inconel 625+B4C coating showed better wear resistance than the Inconel 625+Cr3C2 coating, which showed better corrosion resistance.
重要日期
  • 会议日期

    10-18

    2024

    10-20

    2024

  • 10-17 2024

    报告提交截止日期

  • 10-20 2024

    注册截止日期

  • 11-18 2024

    初稿截稿日期

主办单位

中国机械工程学会表面工程分会

承办单位

大连理工大学
山东理工大学

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