Ni-based alloy having excellent hot forgeability and corrosion resistance, and large structural member
AssigneeHitachi Metals MMC Superalloy, Ltd.
InventorKatsuo Sugahara
Life of this patent
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Abstract
A Ni-based alloy having excellent hot forgeability and corrosion resistance includes, by mass %, Cr: more than 18% to less than 21%, Mo: more than 18% to less than 21%, Ta: 1.1% to 2.5%, Mg: 0.001% to 0.05%, N: 0.001% to 0.04%, Mn: 0.001% to 0.5%, Si: 0.001% to 0.05%, Fe: 0.01% to 1%, Co: 0.01% or more and less than 1%, Al: 0.01% to 0.5%, Ti: 0.01% or more and less than 0.1%, V: 0.005% or more and less than 0.1%, Nb: 0.001% or more and less than 0.1%, B: 0.0001% to 0.01%, Zr: 0.001% to 0.05%, and a balance consisting of Ni and unavoidable impurities.
Claims8
A Ni-based alloy having improved hot forgeability and corrosion resistance comprising, by mass%:
- Cr:
- more than 18% to less than 21%;
- Mo:
- more than 18% to less than 21%;
- Ta:
- 1.1% to 2.5%;
- Mg:
- 0.001% to 0.05%;
- N:
- 0.001% to 0.04%;
- Mn:
- 0.001% to 0.5%;
- Si:
- 0.001% to 0.05%;
- Fe:
- 0.01% to 1%;
- Co:
- 0.01% or more and less than 1%;
- Al:
- 0.01% to 0.5%;
- Ti:
- 0.01% or more and less than 0.1%;
- V:
- 0.005% or more and less than 0.1%;
- Nb:
- 0.001% or more and less than 0.1%;
- B:
- 0.0001% to 0.01%;
- Zr:
- 0.001% to 0.05%;
- and
- a balance consisting of Ni and unavoidable impurities.
Dependencies are inferred from the claim text.