Title:
HOT DIE Ni-BASED ALLOY, HOT FORGING DIE USING SAME, AND FORGED PRODUCT MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2017/204286
Kind Code:
A1
Abstract:
Provided is a hot die Ni-based alloy with high high-temperature compression strength and good oxidation resistance and for which deterioration of the work environment and shape deterioration can be limited. The alloy is a hot die Ni-based alloy of W: 7.0-12.0%, Mo: 4.0-11.0%, Al: 5.0-7.5%, Cr: 0.5-7.5%, the balance being made of Ni and unavoidable impurities. In addition to said composition, the alloy can also contain 0.5-7.0% Ta and can also contain one or more species selected from the elements: Zr: 0.001-0.5%, Hf: 0.001-0.5%, rare earth elements: 0.001-0.2%, Y: 0.001-0.2% and Mg: 0.001-0.03%. For this hot die Ni-based alloy, the 0.2% compression strength at test temperature: 1000°C and strain rate: 10-3/sec can be made to be 500 MPa or more.
Inventors:
SUZUKI SHOGO (JP)
UENO TOMONORI (JP)
AOKI CYUYA (JP)
UENO TOMONORI (JP)
AOKI CYUYA (JP)
Application Number:
PCT/JP2017/019488
Publication Date:
November 30, 2017
Filing Date:
May 25, 2017
Export Citation:
Assignee:
HITACHI METALS LTD (JP)
International Classes:
C22C19/05; B21J13/02; C22F1/00; C22F1/10
Domestic Patent References:
| WO2017057453A1 | 2017-04-06 |
Foreign References:
| JP2016069703A | 2016-05-09 | |||
| JP2016069702A | 2016-05-09 | |||
| JPS62116748A | 1987-05-28 | |||
| JPH11152583A | 1999-06-08 | |||
| JPS62234634A | 1987-10-14 | |||
| JP2017064741A | 2017-04-06 |
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