Invention Grant
- Patent Title: Weld metal having excellent resistance to hydrogen embrittlement susceptibility
- Patent Title (中): 焊接金属具有优异的耐氢脆性
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Application No.: US14110556Application Date: 2012-04-06
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Publication No.: US09592575B2Publication Date: 2017-03-14
- Inventor: Hidenori Nako , Takuya Kochi , Wataru Urushihara , Munenobu Sato , Yoshihiko Kitagawa
- Applicant: Hidenori Nako , Takuya Kochi , Wataru Urushihara , Munenobu Sato , Yoshihiko Kitagawa
- Applicant Address: JP Kobe-shi
- Assignee: Kobe Steel, Ltd.
- Current Assignee: Kobe Steel, Ltd.
- Current Assignee Address: JP Kobe-shi
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2011-086727 20110408
- International Application: PCT/JP2012/059599 WO 20120406
- International Announcement: WO2012/137957 WO 20121011
- Main IPC: B23K35/30
- IPC: B23K35/30 ; B23K9/02 ; B23K9/173 ; B23K35/02 ; C22C38/00 ; C22C38/02 ; C22C38/04 ; C22C38/08 ; C22C38/12 ; C22C38/14 ; C22C38/44 ; C22C38/46 ; C22C38/50 ; C22C38/58
Abstract:
The weld metal of the present invention is formed by gas shield arc welding using a flux-cored wire, has a predetermined chemical component composition, and contains 20% or more of Ti. The amount of Ti-containing oxide particles having a circle-equivalent diameter of 0.15-1.0 μm is at least 5000 per square mm, the amount of V per total mass of weld metal present as a compound within the weld metal is 0.002% or more, and the average circle equivalent diameter of V-containing carbide present in the weld metal is 15 nm or less.
Public/Granted literature
- US20140086786A1 WELD METAL HAVING EXCELLENT RESISTANCE TO HYDROGEN EMBRITTLEMENT SUSCEPTIBILITY Public/Granted day:2014-03-27
Information query
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