发明名称 |
Ni-base alloy large member, Ni-base alloy welded structure made of same, and method for manufacturing structure thereof |
摘要 |
A Ni-base alloy large-size member comprises a base material having strip-shaped carbide segregation, and a homogeneous modified layer formed on a welding groove surface by treatment using Friction stir processing and solution treatment. In addition, a Ni-base alloy welded structure is manufactured by welding the Ni-base alloy large-size member with other member constituting the Ni-base alloy welded structure, such as a member formed of ferrite steel or another Ni-base alloy large-size member under the condition that weld penetration depth is shallower than the thickness of the modified layer. |
申请公布号 |
EP2562281(A1) |
申请公布日期 |
2013.02.27 |
申请号 |
EP20120179975 |
申请日期 |
2012.08.09 |
申请人 |
HITACHI LTD. |
发明人 |
IMANO, SHINYA;KAMOSHIDA, HIRONORI;HIRANO, SATOSHI;SEUNGHWAN, PARK;YOSHIDA, TAKEHIKO |
分类号 |
C22C19/05;B23K20/12;F01D5/00 |
主分类号 |
C22C19/05 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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