公开(公告)号：US11053570B2

公开(公告)日：2021-07-06

申请号：US16469083

申请日：2017-12-04

申请人： TOHOKU TECHNO ARCH CO., LTD. ,  TANAKA KIKINZOKU KOGYO K.K.

发明人： Kiyohito Ishida ,  Toshihiro Omori ,  Yutaka Sato ,  Koichi Sakairi ,  Kunihiro Tanaka ,  Tatsuya Nakazawa

IPC分类号： C22C19/05

摘要： The present invention relates to a Ni-based heat-resistant alloy including Ir: 5.0 mass % or more and 50.0 mass % or less, Al: 1.0 mass % or more and 8.0 mass % or less, W: 5.0 mass % or more and 25.0 mass % or less, and balance Ni, having an L12-structured γ′ phase present in the matrix, and including at least one of Ru: 0.8 mass % or more and 5.0 mass % or less and Re: 0.8 mass % or more and 5.0 mass % or less. This Ni-based heat-resistant alloy has improved toughness over a conventional Ni-based heat-resistant alloy based on a Ni—Ir—Al—W-based alloy, and is also excellent in ambient-temperature strength.

公开(公告)号：US11066728B2

公开(公告)日：2021-07-20

申请号：US16471141

申请日：2017-12-05

申请人： TOHOKU TECHNO ARCH CO., LTD. ,  TANAKA KIKINZOKU KOGYO K.K.

发明人： Kiyohito Ishida ,  Toshihiro Omori ,  Yutaka Sato ,  Koichi Sakairi ,  Kunihiro Tanaka ,  Tatsuya Nakazawa

IPC分类号： C22C19/05 ,  C22C30/00 ,  C22F1/10

摘要： The present invention relates to a Ni-based heat-resistant alloy including Ir: 5.0 mass % or more and 50.0 mass % or less, Al: 1.0 mass % or more and 8.0 mass % or less, W: 5.0 mass % or more and 25.0 mass % or less, and balance Ni, having an L12-structured γ′ phase present in the matrix, and including at least one of Zr: 0.01 mass % or more and 3.0 mass % or less and Hf: 0.01 mass % or more and 3.0 mass % or less. This Ni-based heat-resistant alloy has improved toughness over a conventional Ni-based heat-resistant alloy based on a Ni—Ir—Al—W-based alloy, and is also excellent in ambient-temperature strength.

公开(公告)号：US10081855B2

公开(公告)日：2018-09-25

申请号：US14774223

申请日：2014-03-11

申请人： Tanaka Kikinzoku Kogyo K.K. ,  Tohoku Techno Arch Co., Ltd.

发明人： Kiyohito Ishida ,  Toshihiro Omori ,  Yutaka Sato ,  Kunihiro Tanaka ,  Muneki Nakamura ,  Koichi Sakairi

IPC分类号： C22F1/00 ,  C22C30/00 ,  C22C19/03 ,  C22F1/10 ,  C22F1/14

CPC分类号： C22F1/00 ,  C22C19/03 ,  C22C30/00 ,  C22F1/10 ,  C22F1/14

摘要： The present invention is a heat-resistant Ni-base alloy including a Ni—Ir—Al—W alloy having essential additive elements of Ir, Al, and W added to Ni, wherein the heat-resistant Ni-base alloy includes Ir: 5.0 to 50.0 mass %, Al: 1.0 to 8.0 mass %, and W: 5.0 to 20.0 mass %, the balance being Ni, and a γ′ phase having an L12 structure disperses in a matrix as an essential strengthening phase. The heat-resistant material including the Ni-base alloy may contain one or more additive elements selected from B: 0.001 to 0.1 mass %, Co: 5.0 to 20.0 mass %, Cr: 1.0 to 25.0 mass %, Ta: 1.0 to 10.0 mass %, Nb: 1.0 to 5.0 mass %, Ti: 1.0 to 5.0 mass %, V: 1.0 to 5.0 mass %, and Mo: 1.0 to 5.0 mass %, or 0.001 to 0.5 mass % of C.

公开(公告)号：US10094012B2

公开(公告)日：2018-10-09

申请号：US15127348

申请日：2015-03-23

申请人： TANAKA KIKINZOKU KOGYO K.K.

发明人： Kiyohito Ishida ,  Toshihiro Omori ,  Yutaka Sato ,  Kunihiro Tanaka ,  Muneki Nakamura ,  Koichi Sakairi ,  Tatsuya Nakazawa

IPC分类号： C22C19/05 ,  C22C5/04 ,  C22C30/00 ,  C22F1/00 ,  C22F1/10 ,  C22C19/03

摘要： The present invention relates to a NiIr-base heat-resistant alloy which includes a Ni—Ir—Al—W-base alloy which contains Ir: 5.0 to 50.0 mass %, Al: 1.0 to 8.0 mass %, W: 5.0 to 20.0 mass %, and the balance is Ni, and a γ′ phase having an L12 structure precipitating and dispersing in a matrix as an essential strengthening phase, and a ratio (Y/X) of a peak intensity (Y) of (201) plane of the Ir3W phase observed in the range of 2θ=48° to 50° to a peak intensity (X) of (111) plane of the γ′ phase observed in the range of 2θ=43° to 45° in X-ray diffraction analysis is 0.5 or less. The alloy exhibits good high-temperature property stably.