Title:
Ｎｉ基一方向凝固合金
Document Type and Number:
Japanese Patent JP6803573
Kind Code:
B2
Abstract:
The present invention provides first generation Ni-based directionally solidified alloy containing none of Co and Re, which has excellent TMF characteristics, creep property and environment-resistant characteristics, and is superior in cost performance in practical use. The Ni-based directionally solidified alloy according to one embodiment of the present invention consists of Cr: 6% by mass or more and 12% by mass or less; Mo: 0.4% by mass or more and 3.0% by mass or less; W: 6% by mass or more and 10% by mass or less; Al: 4.0% by mass or more and 6.5% by mass or less; Nb: 0% by mass or more and 1% by mass or less; Ta: 8% by mass or more and 12% by mass or less; Hf: 0% by mass or more and 0.15% by mass or less; Si: 0.01% by mass or more and 0.2% by mass or less; Zr: 0% by mass or more and 0.04% by mass or less; B: 0.01% by mass or more and 0.03% by mass or less; and C: 0.01% by mass or more and 0.3% by mass or less, and a balance of Ni and inevitable impurities.
Inventors:
Kyoko Kawagishi
Hiroshi Harada
Tadaharu Yokokawa
Hiroshi Koizumi
Toshiharu Kobayashi
Masao Sakamoto
Michiya Yuyama
Hiroshi Harada
Tadaharu Yokokawa
Hiroshi Koizumi
Toshiharu Kobayashi
Masao Sakamoto
Michiya Yuyama
Application Number:
JP2018504465A
Publication Date:
December 23, 2020
Filing Date:
March 06, 2017
Export Citation:
Assignee:
National Institute for Materials Science
International Classes:
C22C19/05
Domestic Patent References:
| JP2014034720A | ||||
| JP2005097650A | ||||
| JP62116748A | ||||
| JP11246954A |
Foreign References:
| WO2006104059A1 |
Attorney, Agent or Firm:
Shigerou