Manufacturing method of nuclear nickel-base high-temperature alloy GH 4145 wire
A technology of GH4145 and nickel-based superalloy, which is applied in the field of nuclear nickel-based superalloy GH4145 wire preparation, can solve the problem of high scrap rate of GH4145 alloy wire, achieve simple and controllable production process, ensure dimensional accuracy and surface quality , the effect of high dimensional accuracy
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[0034] Example 1
[0035] A method for preparing a nickel-based superalloy GH4145 wire for nuclear use, the diameter of the finished wire is 6.5mm, and includes the following steps:
[0036] Step 1): According to the GH4145 alloy ingredients, the chemical composition is in weight percentage: 15.5% Cr, 0.75% Al, 2.50% Ti, 0.9% (Nb+Ta), 0.3% Mn, 0.05% C, remaining The amount is Ni.
[0037] Step 2): According to the ingredients described in step 1), refining in a vacuum furnace. The refining is carried out in two steps. The first refining time is 20 minutes, the vacuum degree is 2 Pa, the second refining time is 10 minutes, and the vacuum degree is 0.1Pa. After the charge is melted, use high-power electromagnetic stirring for 2 minutes, and pour at a temperature of 1545°C to obtain a remelted electrode rod;
[0038] Step 3): The remelted electrode rod described in step 2) is remelted by vacuum arc (vacuum self-consumption) to obtain an alloy ingot;
[0039] Step 4): After the alloy ing...
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[0045] Example 2
[0046] A method for preparing a nickel-based superalloy GH4145 wire for nuclear use, the diameter of the finished wire is Φ6.0mm, and includes the following steps:
[0047] Step 1): According to the GH4145 alloy ingredients, the chemical composition is in weight percentage: 16.0% Cr, 0.55% Al, 2.50% Ti, 1.0% (Nb+Ta), 0.3% Mn, 0.04% C, remaining The amount is Ni.
[0048] Step 2): According to the ingredients described in step 1), refining in a vacuum furnace. The refining is carried out in two steps. The first refining time is 25 minutes, the vacuum degree is 3 Pa, the second refining time is 15 minutes, and the vacuum degree is 0.05Pa. After the charge is melted, use high-power electromagnetic stirring for 3 minutes, and pour at a temperature of 1550°C to obtain a remelted electrode rod;
[0049] Step 3): The remelted electrode rod described in step 2) is remelted by vacuum arc (vacuum self-consumption) to obtain an alloy ingot;
[0050] Step 4): After the alloy i...
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