Nickel-based alloy and preparation method and application thereof
A nickel-based alloy and alloy liquid technology, applied in the field of nickel-based alloys and their preparation, can solve problems such as poor corrosion resistance of supercritical equipment, achieve good oxidation resistance and thermal corrosion resistance, increase yield strength, and reduce stacking. The effect of stacking fault energy
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[0054] The present invention also provides a preparation method of the above-mentioned nickel-based alloy, comprising the following steps:
[0055] Step 1. Weigh Ni, Cr, W, Mo, Al, Ti, Fe, and trace elements respectively, wherein, in terms of mass fraction, the mass fraction of Cr is 15%-28%, and the mass fraction of W is 4.1%-10 %, the mass fraction of Mo is 0.5%-4%, the mass fraction of Al is 0.8%-2.1%, the mass fraction of Ti is 0.3%-0.8%, the mass fraction of Fe is 6%-17%, the mass fraction of trace elements The fraction is 0-0.5% and the balance is Ni. The mass fraction of C introduced by Ni, Cr, W, Mo, Al, Ti, Fe, and trace elements is greater than 0 and less than or equal to 0.03%;
[0056] Step 2: Mixing and melting Ni, Cr, W, Mo, and Fe under vacuum conditions until clear, to obtain molten metal after clearing;
[0057] Step 3, refining the molten molten metal after refining, and cooling down after refining until the surface of the obtained refining liquid freezes w...
Example Embodiment
[0067] Example 1:
[0068] The nickel-based alloy provided in this embodiment includes Ni, Cr, W, Mo, Al, Ti, Fe, and C introduced by Ni, Cr, W, Mo, Al, Ti, and Fe; wherein, in terms of mass fraction, The mass fraction of Cr in the nickel-based alloy is 19.3%, the mass fraction of W is 4.1%, the mass fraction of Mo is 0.7%, the mass fraction of Al is 1.5%, the mass fraction of Ti is 0.6%, and the mass fraction of Fe is 12.9 %, the mass fraction of C is greater than 0 and less than or equal to 0.03%, and the balance is Ni.
[0069] The preparation method of the nickel-based alloy provided by this embodiment includes the following steps:
[0070] Step 1. Weigh Ni, Cr, W, Mo, Al, Ti, Fe, respectively, wherein, in terms of mass fraction, the mass fraction of Cr is 19.3%, the mass fraction of W is 4.1%, and the mass fraction of Mo is 0.7% , the mass fraction of Al is 1.5%, the mass fraction of Ti is 0.6%, the mass fraction of Fe is 12.9%, and the balance is Ni; the mass of C intr...
Example Embodiment
[0075] Embodiment 2:
[0076] The nickel-based alloy provided in this embodiment includes Ni, Cr, W, Mo, Al, Ti, Fe, and C introduced by Ni, Cr, W, Mo, Al, Ti, and Fe; wherein, in terms of mass fraction, The mass fraction of Cr in the nickel-based alloy is 16.2%, the mass fraction of W is 9.0%, the mass fraction of Mo is 2.5%, the mass fraction of Al is 1.9%, the mass fraction of Ti is 0.5%, and the mass fraction of Fe is 17.0 %, the mass fraction of C is greater than 0 and less than or equal to 0.03%, and the balance is Ni.
[0077] The preparation method of the nickel-based alloy provided by this embodiment includes the following steps:
[0078] Step 1. Weigh Ni, Cr, W, Mo, Al, Ti, Fe respectively, wherein, in terms of mass fraction, the mass fraction of Cr is 16.2%, the mass fraction of W is 9.0%, and the mass fraction of Mo is 2.5% , the mass fraction of Al is 1.9%, the mass fraction of Ti is 0.5%, the mass fraction of Fe is 17.0%, and the balance is Ni; the mass of C in...
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