Title:
CR-FE-NI TYPE ALLOY PRODUCT
Document Type and Number:
WIPO Patent Application WO/2019/163217
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide an alloy product which exhibits both high corrosion resistance to withstand severe corrosive/high-temperature environments and mechanical characteristics comparable to or better than those of stainless steel and which can be produced at a lower cost than Ni-based alloy. The Cr-Fe-Ni type alloy product pertaining to the present invention is a product using a Cr-Fe-Ni type alloy with Cr being the component with the highest content ratio. The product has a microstructure comprising a dual-phase structure matrix in which a ferrite phase and an austenite phase coexist, wherein precipitates of an L12 type Ni-based intermetallic compound phase are dispersed inside the austenite phase.
Inventors:
NOUJIMA MASAFUMI (JP)
Application Number:
PCT/JP2018/041711
Publication Date:
August 29, 2019
Filing Date:
November 09, 2018
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
B22F9/08; C22C27/06; C22C1/04; C22C30/00; C22F1/00; C22F1/11
Domestic Patent References:
| WO2016052445A1 | 2016-04-07 |
Foreign References:
| JPS4627125B | ||||
| JPH08267275A | 1996-10-15 | |||
| JPS53108821A | 1978-09-22 | |||
| JPS61124546A | 1986-06-12 | |||
| JPH0658218A | 1994-03-01 | |||
| JP2015040307A | 2015-03-02 |
Other References:
See also references of EP 3757241A4
Attorney, Agent or Firm:
POLAIRE I.P.C. (JP)
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