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公开(公告)号：US20160040276A1
公开(公告)日：2016-02-11
申请号：US14774223
申请日：2014-03-11
发明人： Kiyohito ISHIDA , Toshihiro OMORI , Yutaka SATO , Kunihiro TANAKA , Muneki NAKAMURA , Koichi SAKAIRI
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.
摘要翻译： 本发明是一种耐Ni基合金，其中Ni-Ir-Al-W合金具有添加到Ni中的Ir，Al和W的重要添加元素，其中耐热Ni基合金包括Ir：5.0 至50.0质量％，Al：1.0〜8.0质量％，W：5.0〜20.0质量％，余量为Ni，具有L12结构的γ'相分散在基质中作为必需的强化相。 包含Ni基合金的耐热材料可以含有选自B：0.001〜0.1质量％，Co：5.0〜20.0质量％，Cr：1.0〜25.0质量％，Ta：1.0〜10.0质量％ ％，Nb：1.0〜5.0质量％，Ti：1.0〜5.0质量％，V：1.0〜5.0质量％，Mo：1.0〜5.0质量％，或0.001〜0.5质量％。
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公开(公告)号：US20190316229A1
公开(公告)日：2019-10-17
申请号：US16471141
申请日：2017-12-05
发明人： Kiyohito ISHIDA , Toshihiro OMORI , Yutaka SATO , Koichi SAKAIRI , Kunihiro TANAKA , Tatsuya NAKAZAWA
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 mase/0 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.
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公开(公告)号：US20190338398A1
公开(公告)日：2019-11-07
申请号：US16469083
申请日：2017-12-04
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.
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公开(公告)号：US20170130310A1
公开(公告)日：2017-05-11
申请号：US15127348
申请日：2015-03-23
发明人： Kiyohito ISHIDA , Toshihiro OMORI , Yutaka SATO , Kunihiro TANAKA , Muneki NAKAMURA , Koichi SAKAIRI , Tatsuya NAKAZAWA
CPC分类号： C22F1/10 , C22C19/03 , C22C19/055 , C22C19/056 , C22C30/00
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.
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