Title:
ステンレス鋼材、構成部材、セルおよび燃料電池スタック
Document Type and Number:
Japanese Patent JP6926923
Kind Code:
B2
Abstract:
To provide a stainless steel material suitable for solid oxide form fuel cells, a constitutional member, a cell and a fuel cell stack.SOLUTION: There is provided a stainless steel material having a substrate consisting of a ferritic stainless steel and an oxide layer formed on a surface of the substrate, in which a chemical composition of the substrate satisfies [16.0≤Cr+1.5×Al-2.5×B-17×C≤35.0], the oxide layer contains α-AlOof 80% or more, a deposition containing one or more kind selected from MCtype Cr carbide, MB type Cr-based boride, a composite deposition having MCtype Cr carbide deposited on a surface thereof with MB type Cr-based boride as a deposition nucleus, and a composite deposition having MCtype Cr-based carbide deposited on a surface thereof with NbC carbide as the deposition nucleus is contained in the substrate, and a part of the deposition projects from the oxide layer.SELECTED DRAWING: None
Inventors:
Nishimoto Ko
Yoshio Tarutani
Yoshio Tarutani
Application Number:
JP2017197358A
Publication Date:
August 25, 2021
Filing Date:
October 11, 2017
Export Citation:
Assignee:
Nippon Steel Corporation
International Classes:
C22C38/00; C21D9/46; C22C38/60; H01M8/021; H01M8/0215; H01M8/0228; H01M8/12
Domestic Patent References:
| JP2006009119A | ||||
| JP2016030854A | ||||
| JP2012067391A | ||||
| JP2011174152A | ||||
| JP2001523765A | ||||
| JP6113359B1 |
Foreign References:
| WO2017170067A1 | ||||
| WO2016052623A1 | ||||
| KR1020170063899A | ||||
| EP3202940A1 | ||||
| WO1999025890A1 |
Attorney, Agent or Firm:
Patents corporation Blitas