The application discloses a kind of micro-nano hard
ceramic phase composite reinforced
laser cladding
nickel-based wear-resistant
coating and its preparation method and application.The preparation method uses
discharge plasma ball milling process to mix micro-nano hard
ceramic and Ni-based
metal powder for modification treatment, utilizes the synergistic effect of
plasma activation and mechanical ball milling force of
pulse discharge, effectively breaks the nano
ceramic phase
agglomerate, realizes the uniform dispersion distribution of nano ceramic phase in composite
powder;By adopting the optimization of
laser cladding process parameters, and cooperating with
ultrasonic vibration auxiliary and / or pulse
laser composite energy input, etc. Regulating means, prepare the
nickel-based wear-resistant
coating with uniform and dense structure, high
hardness, excellent
wear resistance and good metallurgical bonding with base material, which can meet the service requirements of mining machinery,
oil drilling and production, metallurgical roller and other harsh working conditions, and has wide application prospect.