Method of producing Ni-based superalloy

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United States of America Patent

PATENT NO 10131980
APP PUB NO 20180100223A1
SERIAL NO

15561304

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Abstract

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A method of producing a Ni-based superalloy is provided. A hot working material is used and consisting of a specific composition and has a solvus temperature of a γ′ phase of 1050° C. or more. The method includes: performing heating in a temperature of 980° C. to 1050° C. with an upper limit of −30° C. from the solvus temperature of the γ′ phase, for 10 hours or longer; and performing hot working on the material at a working speed of a strain rate of 2.0/second or more in the above temperature range.

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Patent Owner(s)

  • HITACHI METALS LTD

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kobayashi, Shinichi Yasugi, JP 268 3956
Ohno, Takehiro Yasugi, JP 22 144
Ueno, Tomonori Yasugi, JP 66 269

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