发明名称 |
NI-BASED ALLOY LARGE MEMBER, NI-BASED ALLOY WELDED STRUCTURE USING THE SAME, AND METHOD FOR MANUFACTURING THE STRUCTURE |
摘要 |
<P>PROBLEM TO BE SOLVED: To provide an Ni-based alloy large member that can be restrained from hot cracking, an Ni-based alloy welded structure using the Ni-based alloy large member, and a method for manufacturing the structure. <P>SOLUTION: The Ni-based alloy large member having strip segregation of a carbide in a base material is formed with a homogeneous modified layer (a region A) on a welding groove surface by treatment using a friction stirring treatment method and solution treatment. An Ni-based alloy welded structure is manufactured by welding the Ni-based alloy large member so that the penetration depth of welding is shallower than the thickness of the modified layer. <P>COPYRIGHT: (C)2013,JPO&INPIT |
申请公布号 |
JP2013044252(A) |
申请公布日期 |
2013.03.04 |
申请号 |
JP20110181225 |
申请日期 |
2011.08.23 |
申请人 |
HITACHI LTD |
发明人 |
KONNO SHINYA;KAMOSHIDA HIROKI;HIRANO SATOSHI;PARK SEUNG HWAN;YOSHIDA TAKEHIKO |
分类号 |
F01D25/00;B23K9/00;B23K9/23;B23K9/235;B23K20/12;B23K31/00;C22C19/05;C22F1/00;C22F1/10;F01D5/02 |
主分类号 |
F01D25/00 |
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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