Method for depositing silicon carbide high radiation coating on cobalt based high-temperature alloy surface
A technology of high radiation coating and superalloy, applied in metal material coating process, coating, sputtering and other directions, can solve the problems of poor film deposition effect, difficult to combine silicon carbide coating and cobalt-based superalloy, etc. , to achieve the effect of enhanced adhesion, elimination of interface defects and residual stress, and high emissivity
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[0013] Specific implementation mode 1: the following combination figure 1 To explain this embodiment, the method for depositing a silicon carbide high-radiation coating on the surface of a cobalt-based superalloy in this embodiment includes the following steps:
[0014] Step 1. Clean the cobalt-based superalloy with hydrofluoric acid for 10-20 minutes; then put it in acetone solution and clean with ultrasonic for 10-20 minutes; put it in alcohol solution and clean with ultrasonic for 10-20 minutes; finally Rinse with deionized water for 10-20 minutes;
[0015] Step 2: Send the treated cobalt-based superalloy into the magnetron sputtering vacuum chamber, and evacuate the magnetron sputtering vacuum chamber. When the vacuum degree in the magnetron sputtering vacuum chamber reaches 10 -4 At Pa, heat the cobalt-based superalloy at a heating temperature of 25 to 500°C, and then heat it for 10 minutes to 2 hours;
[0016] Step 3: Pour Ar gas into the magnetron sputtering vacuum chamber....
Example Embodiment
[0032] Embodiment 2: The difference between this embodiment and Embodiment 1 is that in step 1, the cobalt-based superalloy is cleaned with hydrofluoric acid for 15-20 minutes; then it is placed in an acetone solution and ultrasonically cleaned for 15-20 minutes; Then put it in the alcohol solution, clean with ultrasonic for 15-20 minutes; finally clean with deionized water for 15-20 minutes. Others are the same as the first embodiment.
Example Embodiment
[0033] Specific embodiment 3: The difference between this embodiment and the first embodiment is that the heating temperature in step 2 is 25-200° C., and then the temperature is kept for 40-80 minutes. Others are the same as the first embodiment.
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