Preparation method of TC4/TiC laser cladding composite coating layer
A laser cladding and composite coating technology, which is applied in the field of preparation of TC4/TiC laser cladding composite coatings, can solve the problems of cladding coating instability, poor wear resistance and corrosion resistance, etc., and achieve improved coating Cracking, preventing coating cracking, avoiding the effect of pores
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Embodiment 1
[0043] Example 1 The preparation method of TC4 / TiC laser cladding composite coating specifically includes the following preparation steps:
[0044] S1. Pretreatment: use the pure titanium plate as the cladding substrate, polish the surface with 600-grit sandpaper for 30 minutes, and then wash it with 95% ethanol solution for 5 minutes to remove the oil and rust on the surface;
[0045]S2. Raw material preparation: After drying TiC powder with an average particle size of 50 μm and TC4 titanium alloy powder with an average particle size of 70 μm at 80° C. for 30 minutes, mix them uniformly at a mass ratio of 30:70 to form a mixed powder;
[0046] S3. Laser cladding: the mixed powder obtained in step S2 is fed into argon gas, and laser cladding is carried out on the surface of the substrate treated in step S1 by coaxial powder feeding with STAUBLTX90 type numerical control laser, and rapidly cooled at room temperature to form One layer of composite coating. Among them, the flow ...
Embodiment 2
[0049] Example 2 The preparation method of TC4 / TiC laser cladding composite coating specifically includes the following preparation steps:
[0050] S1. Pretreatment: use the pure titanium plate as the cladding substrate, polish the surface with 600-grit sandpaper for 30 minutes, and then wash it with 95% ethanol solution for 5 minutes to remove the oil and rust on the surface;
[0051] S2. Raw material preparation: After drying TiC powder with an average particle size of 50 μm and TC4 titanium alloy powder with an average particle size of 70 μm at 80° C. for 30 minutes, mix them uniformly at a mass ratio of 30:70 to form a mixed powder;
[0052] S3. Laser cladding: the mixed powder obtained in step S2 is fed into argon gas, and laser cladding is carried out on the surface of the substrate treated in step S1 by coaxial powder feeding with STAUBLTX90 type numerical control laser, and rapidly cooled at room temperature to form One layer of composite coating. Among them, the flow...
Embodiment 3
[0055] Example 3 The preparation method of TC4 / TiC laser cladding composite coating specifically includes the following preparation steps:
[0056] S1. Pretreatment: use the pure titanium plate as the cladding substrate, polish the surface with 600-grit sandpaper for 30 minutes, and then wash it with 95% ethanol solution for 5 minutes to remove the oil and rust on the surface;
[0057] S2. Raw material preparation: After drying TiC powder with an average particle size of 50 μm and TC4 titanium alloy powder with an average particle size of 70 μm at 80° C. for 30 minutes, mix them uniformly at a mass ratio of 30:70 to form a mixed powder;
[0058] S3. Laser cladding: the mixed powder obtained in step S2 is fed into argon gas, and laser cladding is carried out on the surface of the substrate treated in step S1 by coaxial powder feeding with STAUBLTX90 type numerical control laser, and rapidly cooled at room temperature to form One layer of composite coating. Among them, the flow...
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