Titanium-aluminum-based alloy surface protective coating and preparation method thereof
A protective coating and alloy coating technology, which is applied in metal material coating technology, coating, ion implantation plating, etc., can solve the problems of poor bonding strength between the modified layer and the substrate, loss of protective effect, easy peeling, etc. Achieve the effects of improving corrosion resistance, prolonging service life, and saving energy resources
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Embodiment 1
[0021] Firstly, the surface of the titanium-aluminum-based alloy is ground and polished to 1000#, then ultrasonically cleaned with a cleaning agent prepared from ethanol and acetone with a volume ratio of 3:1, and then dried; the processed titanium-aluminum-based alloy and Ta-W alloy The target material is put into the Shuanghui plasma surface metallurgical infiltration furnace. The Ta-W alloy target material contains 78% Ta and 22% W according to mass percentage. The titanium-aluminum-based alloy is used as the workpiece electrode and Ta-W The alloy target is the source, and the distance between the two electrodes is adjusted to 15mm; the double-glow plasma surface metallurgical infiltration furnace is evacuated to a pressure of 0.2Pa, argon gas is introduced to start the glow, and the source voltage is controlled to 800V. Workpiece voltage is 450V, working pressure is 30Pa, working time is 2h; stop glow, cut off power, complete Ta-W co-infiltration on the surface of titanium-a...
Embodiment 2
[0023] Firstly, the surface of the titanium-aluminum-based alloy is ground and polished to 1000#, then ultrasonically cleaned with a cleaning agent prepared from ethanol and acetone with a volume ratio of 3.5:1, and then dried; the processed titanium-aluminum-based alloy and Ta-W alloy The target material is put into the Shuanghui plasma surface metallurgical infiltration furnace. The Ta-W alloy target material has a Ta content of 79% and a W content of 21% by mass percentage. The titanium-aluminum-based alloy is used as the workpiece electrode, and Ta-W The alloy target is the source, and the distance between the two electrodes is adjusted to 15mm; the double-glow plasma surface metallurgical infiltration furnace is evacuated to a pressure of 0.2Pa, argon gas is introduced to start the glow, and the source voltage is controlled to 800V. Workpiece voltage is 450V, working pressure is 30Pa, working time is 2h; stop glow, cut off power, complete Ta-W co-infiltration on the surface...
Embodiment 3
[0025] First, the surface of the titanium-aluminum-based alloy is ground and polished to 1200#, then ultrasonically cleaned with a cleaning agent prepared from ethanol and acetone with a volume ratio of 4:1, and then dried; the processed titanium-aluminum-based alloy and Ta-W alloy The target material is put into the Shuanghui plasma surface metallurgical infiltration furnace. The Ta-W alloy target material is calculated by mass percentage of Ta content of 80%, W content of 20%, titanium-aluminum-based alloy as the workpiece electrode, and Ta-W The alloy target is the source electrode, and the distance between the two electrodes is adjusted to 25mm; the double-glow plasma surface metallurgical infiltration furnace is evacuated to a pressure of 0.2Pa, and argon gas is introduced to start the glow, and the source voltage is controlled to 950V. The workpiece voltage is 550V, the working pressure is 30Pa, and the working time is 2h; stop the glow and cut off the power to complete th...
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