Ni-based single crystal superalloy and turbine blade incorporating the same

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United States of America Patent

PATENT NO 8877122
APP PUB NO 20120034098A1
SERIAL NO

13264220

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Abstract

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A Ni-based single crystal superalloy which has the following composition: Co: 0.0 wt % or more to 15.0 wt % or less, Cr: 4.1 to 8.0 wt %, Mo: 2.1 to 4.5 wt %, W: 0.0 to 3.9 wt %, Ta: 4.0 to 10.0 wt %, Al: 4.5 to 6.5 wt %, Ti: 0.0 to 1.0 wt %, Hf: 0.00 to 0.5 wt %, Nb: 0.0 to 3.0 wt %, Re: 8.1 to 9.9 wt % and Ru: 0.5 to 6.5 wt % with the remainder including Ni and unavoidable impurities. As a result, the Ni-based single crystal superalloy which includes more than 8 wt % of Re in the composition ratio and has excellent specific creep strength and the turbine blade incorporating the Ni-based single crystal superalloy may be made.

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Patent Owner(s)

Patent OwnerAddress
IHI CORPORATION1-1 TOYOSU 3-CHOME KOTO-KU TOKYO 1358710 ?1358710

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Aoki, Yasuhiro Tokyo, JP 111 834
Chikugo, Kazuyoshi Kawasaki, JP 14 69
Miyata, Kazuhito Tokyo, JP 11 54
Sato, Akihiro New York, US 210 2699
Sekine, Nobuhito Soma, JP 3 4

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