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1. 发明申请

US20220017995A1 TiAl ALLOY AND METHOD OF MANUFACTURING THE SAME 有权
公开(公告)号：US20220017995A1
公开(公告)日：2022-01-20
申请号：US17449133
申请日：2021-09-28
申请人： IHI Corporation
发明人： Keiji KUBUSHIRO
IPC分类号： C22C14/00 , B22F3/15
摘要： A TiAl alloy contains 48 at % or more and 50 at % or less of Al, 1 at % or more and 3 at % or less of Nb, 0.3 at % or more and 1 at % or less of Zr, 0.05 at % or more and 0.3 at % or less of B, and the balance being Ti and inevitable impurities.

2. 发明申请

US20210162532A1 METHOD OF BONDING METAL MEMBERS AND METAL MEMBER JOINT BODY 有权
公开(公告)号：US20210162532A1
公开(公告)日：2021-06-03
申请号：US17151723
申请日：2021-01-19
申请人： IHI CORPORATION
发明人： Nagisa HOSOYA , Rie HARADA , Keiji KUBUSHIRO
IPC分类号： B23K20/16 , B23K20/02
摘要： A method of bonding metal members includes a stacked body forming step of forming a stacked body by putting an insert material between a first metal member and a second metal member formed of carbide-containing Ni alloys or carbide-containing Fe alloys, and a solid phase diffusion bonding step of forming a metal member joint body by heating and pressurizing the stacked body to perform solid phase diffusion bonding, wherein the insert material contains Ni having a content higher than an Ni content of the first metal member and the second metal member when the first metal member and the second metal member are formed of the carbide-containing Ni alloys, and contains Fe or Ni having a content higher than an Fe content of the first metal member and the second metal member when the first metal member and the second metal member are formed of the carbide-containing Fe alloys.

3. 发明公开

US20240110261A1 TiAl ALLOY, TiAl ALLOY POWDER, TiAl ALLOY COMPONENT, AND PRODUCTION METHOD OF THE SAME 审中-公开
公开(公告)号：US20240110261A1
公开(公告)日：2024-04-04
申请号：US18521082
申请日：2023-11-28
申请人： IHI Corporation
发明人： Yutaro OTA , Yuto MIYAZAWA , Keiji KUBUSHIRO
IPC分类号： C22C14/00 , B22F1/00 , B22F3/00 , B22F3/15
CPC分类号： C22C14/00 , B22F1/00 , B22F3/004 , B22F3/15 , B22F2301/205 , B22F2998/10 , B22F2999/00
摘要： A TiAl alloy is provided with 47 at % or more and 50 at % or less of Al, 1 at % or more and 2 at % or less of Nb, 2 at % or more and 5 at % or less of Zr, 0.05 at % or more and 0.3 at % or less of B, and the balance being Ti and inevitable impurities.

4. 发明申请

US20220205075A1 METHOD OF MANUFACTURING TiAl ALLOY AND TiAl ALLOY 有权
公开(公告)号：US20220205075A1
公开(公告)日：2022-06-30
申请号：US17450724
申请日：2021-10-13
申请人： IHI Corporation
发明人： Keiji KUBUSHIRO
IPC分类号： C22F1/18 , C22C14/00 , C22C1/02
摘要： A method of manufacturing a TiAl alloy includes a casting step of melting and casting a TiAl alloy raw material which contains 42 at % or more and 45 at % or less of Al, 3 at % or more and 6 at % or less of Nb, 3 at % or more and 6 at % or less of V, 0.1 at % or more and 0.3 at % or less of B, and the balance being Ti and inevitable impurities, a hot forging step of hot forging the cast TiAl alloy by heating the cast TiAl alloy to a temperature range between 1200° C. or higher and 1350° C. or lower, and a thermal treatment step of holding the hot-forged TiAl alloy at a temperature range between 1220° C. or higher and 1300° C. or lower for a hour range between 1 hour or longer and 5 hours or shorter, applying a first thermal treatment to the hot-forged TiAl alloy, cooling the TiAl alloy subjected to the first thermal treatment to a temperature range between 1000° C. or higher and 1100° C. or lower at a cooling rate of 400° C./hour or more, holding the TiAl alloy subjected to the first thermal treatment at a temperature range between 100 ° C. or higher and 1100° C. or lower for a hour range between 1 hour or longer and 4 hours or shorter, applying a second thermal treatment to the TiAl alloy subjected to the first thermal treatment, and rapidly cooling the TiAl alloy subjected to the second thermal treatment.

5. 发明申请

US20220023934A1 TiAl ALLOY MATERIAL, METHOD OF MANUFACTURING THE SAME, AND METHOD OF HOT FORGING TiAl ALLOY MATERIAL 有权
公开(公告)号：US20220023934A1
公开(公告)日：2022-01-27
申请号：US17450707
申请日：2021-10-13
申请人： IHI Corporation
发明人： Keiji KUBUSHIRO
IPC分类号： B21J5/00 , B32B15/01 , C22C14/00 , B21J1/06
摘要： A TiAl alloy material for hot forging includes a TiAl alloy substrate formed of a TiAl alloy which contains 42 at % or more and 45 at % or less of Al, 3 at % or more and 6 at % or less of Nb, 3 at % or more and 6 at % or less of V, 0.1 at % or more and 0.3 at % or less of B, and the balance being Ti and inevitable impurities, an intermediate layer formed on a surface of the TiAl alloy substrate, and a titanium layer formed on a surface of the intermediate layer, wherein the intermediate layer is formed of a first layer which is formed on a side of the TiAl alloy substrate and is formed of the TiAl alloy which becomes β-TiAl at a hot forging temperature range between 1200° C. or higher and 1350° C. or lower and a second layer that is formed on a side of the titanium layer and is formed of a β-Ti material.

6. 发明申请

US20220010410A1 TiAl ALLOY AND METHOD OF MANUFACTURING THE SAME 有权
公开(公告)号：US20220010410A1
公开(公告)日：2022-01-13
申请号：US17449132
申请日：2021-09-28
申请人： IHI Corporation
发明人： Keiji KUBUSHIRO
IPC分类号： C22C14/00 , B22F3/15
摘要： A TiAl alloy contains 48 at % or more and 50 at % or less of Al, 3 at % or more and 5 at % or less of Nb, 0.1 at % or more and 0.3 at % or less of B, and the balance being Ti and inevitable impurities.

7. 发明申请

US20220002854A1 TITANIUM ALUMINIDE ALLOY MATERIAL FOR HOT FORGING AND FORGING METHOD FOR TITANIUM ALUMINIDE ALLOY MATERIAL 有权
公开(公告)号：US20220002854A1
公开(公告)日：2022-01-06
申请号：US17447714
申请日：2021-09-15
申请人： IHI Corporation , TOKYO INSTITUTE OF TECHNOLOGY
发明人： Keiji KUBUSHIRO , Yutaro OTA , Shin USUI , Masao TAKEYAMA , Hirotoyo NAKASHIMA
IPC分类号： C22F1/18 , C22C14/00 , B21J5/00
摘要： A titanium aluminide alloy material for hot forging has a chemical composition including, by atom, aluminum of 38.0% or greater and 39.9% or less, niobium of 3.0% or greater and 5.0% or less, vanadium of 3.0% or greater and 4.0% or less, carbon of 0.05% or greater and 0.15% or less, and titanium and an inevitable impurity as a residue.

8. 发明申请

US20210404042A1 TITANIUM ALUMINIDE ALLOY MATERIAL FOR HOT FORGING, FORGING METHOD FOR TITANIUM ALUMINIDE ALLOY MATERIAL, AND FORGED BODY 有权
公开(公告)号：US20210404042A1
公开(公告)日：2021-12-30
申请号：US17447479
申请日：2021-09-13
申请人： IHI Corporation , TOKYO INSTITUTE OF TECHNOLOGY
发明人： Keiji KUBUSHIRO , Yutaro OTA , Satoshi TAKAHASHI , Masao TAKEYAMA , Hirotoyo NAKASHIMA , Ryosuke YAMAGATA
IPC分类号： C22F1/18 , C22C14/00 , B21J5/00
摘要： A titanium aluminide alloy material for hot forging has a chemical composition including, by atom, aluminum of 43.0% or greater and 45.0% or less, niobium of 4.0% or greater and 6.0% or less, chromium of 1.5% or greater and 3.5% or less, and titanium and an inevitable impurity as a residue.

9. 发明申请

US20190106778A1 TiAl ALLOY AND METHOD OF MANUFACTURING THE SAME 审中-公开
公开(公告)号：US20190106778A1
公开(公告)日：2019-04-11
申请号：US16212997
申请日：2018-12-07
申请人： IHI Corporation
发明人： Keiji KUBUSHIRO , Satoshi Takahashi
IPC分类号： C22F1/18 , C22C14/00 , F01D5/28
摘要： A TiAl alloy for forging, contains 41 at % or more and 44 at % or less of Al, 4 at % or more and 6 at % or less of Nb, 4 at % or more and 6 at % or less of V, 0.1 at % or more and 1 at % or less of B, and the balance being Ti and inevitable impurities.

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