Title:
TWO-PHASE STAINLESS STEEL WELDED JOINT
Document Type and Number:
WIPO Patent Application WO/2022/085262
Kind Code:
A1
Abstract:
Provided is a two-phase stainless steel welded joint having good toughness and excellent HISC resistance. A two-phase stainless steel welded joint (10) is a two-phase stainless steel welded joint including a base material part (11) and a weld part (12), wherein: the weld part (12) is composed of a weld metal part (121) and a welding heat-affected part (122); the base material part (11) and the weld metal part (121) have a predetermined chemical composition; and the welding heat-affected part (122) has a two-phase structure of ferrite and austenite, the two-phase structure having a volume ratio of the ferrite phase of 70% or less, and a distance λ between austenite phases of 60 μm or less.
Inventors:
TAKABE HIDEKI (JP)
OKADA SEIYA (JP)
SAGARA MASAYUKI (JP)
OGAWA KAZUHIRO (JP)
OKADA SEIYA (JP)
SAGARA MASAYUKI (JP)
OGAWA KAZUHIRO (JP)
Application Number:
PCT/JP2021/027339
Publication Date:
April 28, 2022
Filing Date:
July 21, 2021
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
C22C38/00; B23K35/30; C22C38/58
Domestic Patent References:
| WO2020138490A1 | 2020-07-02 | |||
| WO2005001151A1 | 2005-01-06 |
Foreign References:
| JP2018135601A | 2018-08-30 | |||
| JP2020509201A | 2020-03-26 | |||
| JP2016078060A | 2016-05-16 | |||
| JP2010194562A | 2010-09-09 | |||
| JPH0532741A | 1993-02-09 | |||
| JP2013253315A | 2013-12-19 | |||
| JPH08260101A | 1996-10-08 |
Attorney, Agent or Firm:
UEBA, Hidetoshi et al. (JP)
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