A kind of cobalt base alloy for surgical implant and application thereof
A cobalt-based alloy, surgical implantation technology, applied in the field of alloys, can solve problems such as sensitization, carcinogenicity, toxic and side effects, and achieve the effects of avoiding sensitization, avoiding the harm of nickel, and reducing preparation costs
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[0026] According to the chemical composition range set by the cobalt-based alloy of the present invention, the cobalt-based alloy for surgical implantation of the present invention adopts 15 kg of vacuum induction furnace to smelt 4 furnace alloys (respectively numbering No. 1-4) and 1 furnace for comparison of cobalt-chromium-molybdenum alloys. 10 kg, the protective nitrogen pressure is 0.05-0.07MPa, and the nitrided alloy is MnN with a nitrogen content of 6% (wt%). These 5 furnace alloys are respectively cast into one φ80×150 ingot, and processed and heat treated as follows Process specifications for processing.
[0027] The forging process is as follows: the alloy ingot is homogenized and heat-treated at 1150°C±15°C for 2 hours to open the billet, and is forged in three fires to form a preliminary rolling billet, and the final forging temperature is 900°C.
[0028] The hot-rolling process is as follows: the first-rolled billet is kept at a temperature of 1150°C±15°C for 2 hou...
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