Method for preparing damping vibration attenuation composite coating on surface of rotary machine thin-shell component
A technology of composite coating and rotating machinery, applied in the field of materials, to achieve high stability, increased dynamic stiffness, and good bonding force
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[0029] Example 1
[0030] Take the engine rotor blade as the base body to remove the oil and impurities on the surface of the base body, and then place it in the vacuum chamber of the filtered arc ion coating machine;
[0031] Evacuate the vacuum chamber to pressure ≤1×10 -3 Pa, then preheat the substrate to 200°C;
[0032] Pour argon gas into the vacuum chamber to a pressure of 0.5 Pa, turn on the filtered arc ion plating machine, use titanium as a target, deposit a titanium coating on the surface of the substrate, control the substrate negative bias voltage amplitude to 200V, and the bias duty cycle 10~30%, the main arc current is 40~80A; the deposition time is 8min, and a titanium coating with a thickness of 1μm is formed on the surface of the substrate;
[0033] Adopt Ni 60 Cr 33.7 Al 4.5 Y 1.8 The alloy is the target material, and Ni is deposited on the surface of the titanium coating 60 Cr 33.7 Al 4.5 Y 1.8 Alloy coating, controlled substrate negative bias voltage amplitude is 3...
Example Embodiment
[0035] Example 2
[0036] Take the rotating blade as the substrate to remove the oil and impurities on the surface of the substrate, and then place it in the vacuum chamber of the filtered arc ion coating machine;
[0037] Evacuate the vacuum chamber to pressure ≤1×10 -3 Pa, then preheat the substrate to 100°C;
[0038] Pour argon gas into the vacuum chamber to a pressure of 0.6 Pa, turn on the filtered arc ion plating machine, use titanium as a target, deposit a titanium coating on the substrate surface, control the substrate negative bias voltage amplitude to 200V, and the bias duty cycle 10~30%, the main arc current is 40A; the deposition time is 10min, and a titanium coating with a thickness of 1.5μm is formed on the surface of the substrate;
[0039] Adopt Ni 60 Cr 33.7 Al 4.5 Y 1.8 The alloy is the target material, and Ni is deposited on the surface of the titanium coating 60 Cr 33.7 Al 4.5 Y 1.8 Alloy coating, control the negative bias voltage amplitude of the substrate to 400 ...
Example Embodiment
[0041] Example 3
[0042] Take the rotating blade as the substrate to remove the oil and impurities on the surface of the substrate, and then place it in the vacuum chamber of the filtered arc ion coating machine;
[0043] Evacuate the vacuum chamber to pressure ≤1×10 -3 Pa, then preheat the substrate to 300℃;
[0044] Pour argon gas into the vacuum chamber to a pressure of 0.8 Pa, turn on the filtered arc ion plating machine, use metallic titanium as a target, deposit a titanium coating on the substrate surface, control the substrate negative bias voltage amplitude to 300V, and the bias duty cycle 10~30%, the main arc current is 80A; the deposition time is 10min, and a titanium coating with a thickness of 0.5μm is formed on the surface of the substrate;
[0045] Adopt Ni 60 Cr 33.7 Al 4.5 Y 1.8 The alloy is the target material, and Ni is deposited on the surface of the titanium coating 60 Cr 33.7 Al 4.5 Y 1.8 Alloy coating, controlled substrate negative bias voltage amplitude is 400 ...
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