-
公开(公告)号：US09945019B2
公开(公告)日：2018-04-17
申请号：US15372500
申请日：2016-12-08
Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
Inventor： Yuefeng Gu , Toshio Osada , Yong Yuan , Tadaharu Yokokawa , Hiroshi Harada
CPC classification number: C22F1/10 , B21J5/02 , C22C19/05 , C22C19/056 , C22C19/07 , C22C30/00 , C22F1/00 , F01D5/02 , F01D5/28 , F05D2300/175
Abstract: Disclosed herein is a nickel-based heat-resistant superalloy produced by a casting and forging method, the nickel-based heat-resistant superalloy comprising 2.0 mass % or more but 25 mass % or less of chromium, 0.2 mass % or more but 7.0 mass % or less of aluminum, 19.5 mass % or more but 55.0 mass % or less of cobalt, [0.17×(mass % of cobalt content−23)+3] mass % or more but [0.17×(mass % of cobalt content−20)+7] mass % or less and 5.1 mass % or more of titanium, and the balance being nickel and inevitable impurities, and being subjected to solution heat treatment at 93% or more but less than 100% of a γ′ solvus temperature.
-
公开(公告)号：US09816161B2
公开(公告)日：2017-11-14
申请号：US14419765
申请日：2013-07-30
Inventor： Kyoko Kawagishi , Hiroshi Harada , Tadaharu Yokokawa , Yutaka Koizumi , Toshiharu Kobayashi , Masao Sakamoto , Michinari Yuyama , Masaki Taneike , Ikuo Okada , Sachio Shimohata , Hidetaka Oguma , Ryota Okimoto , Keizo Tsukagoshi , Yoshitaka Uemura , Junichiro Masada , Shunsuke Torii
CPC classification number: C22C19/057 , C22C19/056 , C22F1/10 , C30B11/00 , C30B29/52 , C30B33/02 , F01D5/28 , F05D2300/132 , F05D2300/175 , F05D2300/607 , Y02T50/671
Abstract: Provided is a Ni-based single crystal superalloy containing 6% by mass or more and 12% by mass or less of Cr, 0.4% by mass or more and 3.0% by mass or less of Mo, 6% by mass or more and 10% by mass or less of W, 4.0% by mass or more and 6.5% by mass or less of Al, 0% by mass or more and 1% by mass or less of Nb, 8% by mass or more and 12% by mass or less of Ta, 0% by mass or more and 0.15% by mass or less of Hf, 0.01% by mass or more and 0.2% by mass or less of Si, and 0% by mass or more and 0.04% by mass or less of Zr, and optionally containing at least one element selected from B, C, Y, La, Ce, and V, with a balance being Ni and inevitable impurities.
-
公开(公告)号：US20150197833A1
公开(公告)日：2015-07-16
申请号：US14419765
申请日：2013-07-30
Inventor： Kyoko Kawagishi , Hiroshi Harada , Tadaharu Yokokawa , Yutaka Koizumi , Toshiharu Kobayashi , Masao Sakamoto , Michinari Yuyama , Masaki Taneike , Ikuo Okada , Sachio Shimohata , Hidetaka Oguma , Ryota Okimoto , Keizo Tsukagoshi , Yoshitaka Uemura , Junichiro Masada , Shunsuke Torii
CPC classification number: C22C19/057 , C22C19/056 , C22F1/10 , C30B11/00 , C30B29/52 , C30B33/02 , F01D5/28 , F05D2300/132 , F05D2300/175 , F05D2300/607 , Y02T50/671
Abstract: Provided is a Ni-based single crystal superalloy containing 6% by mass or more and 12% by mass or less of Cr, 0.4% by mass or more and 3.0% by mass or less of Mo, 6% by mass or more and 10% by mass or less of W, 4.0% by mass or more and 6.5% by mass or less of Al, 0% by mass or more and 1% by mass or less of Nb, 8% by mass or more and 12% by mass or less of Ta, 0% by mass or more and 0.15% by mass or less of Hf, 0.01% by mass or more and 0.2% by mass or less of Si, and 0% by mass or more and 0.04% by mass or less of Zr, and optionally containing at least one element selected from B, C, Y, La, Ce, and V, with a balance being Ni and inevitable impurities.
Abstract translation: 提供了含有6质量％以上且Ni：12质量％以下的Cr，0.4质量％以上且3.0质量％以下的Mo，6质量％以上且10质量％以下的Ni系单晶超合金 W：4.0质量％以上6.5质量％以下，Nb：0质量％以上，Nb：1质量％以下，8质量％以上12质量％以下 质量％以下的Ta，0质量％以上且0.15质量％以下的Hf，0.01质量％以上且0.2质量％以下的Si，0质量％以上且0.04质量％ 或更少的Zr，并且任选地含有选自B，C，Y，La，Ce和V中的至少一种元素，余量为Ni和不可避免的杂质。
-
公开(公告)号：US10689741B2
公开(公告)日：2020-06-23
申请号：US15932302
申请日：2016-05-30
Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
Inventor： Hiroshi Harada , Kyoko Kawagishi , Toshiharu Kobayashi , Tadaharu Yokokawa , Makoto Osawa , Michinari Yuyama , Shinsuke Suzuki , Yuichiro Joh , Satoshi Utada
Abstract: A method for recycling a Ni-based single crystal superalloy part or unidirectionally solidified superalloy part provided with a thermal barrier coating containing at least a ceramic on a surface of a Ni-based single crystal superalloy substrate or Ni-based unidirectionally solidified superalloy substrate, in which the method including the steps of: melting and desulfurizing a Ni-based single crystal superalloy part or Ni-based unidirectionally solidified superalloy part at a temperature of the melting point or more of the Ni-based single crystal superalloy or Ni-based unidirectionally solidified superalloy and less than the melting point of the ceramic; heating a casting mold for a recycled Ni-based single crystal superalloy part or casting mold for a recycled Ni-based unidirectionally solidified superalloy part to a temperature of the melting point or more of the Ni-based single crystal superalloy or Ni-based unidirectionally solidified superalloy; pouring the desulfurized melted Ni-based single crystal superalloy or Ni-based unidirectionally solidified superalloy into the casting mold, and producing a melting stock or growing a Ni-based single crystal superalloy or Ni-based unidirectionally solidified superalloy; and removing the melting stock or the recycled Ni-based single crystal superalloy part or recycled Ni-based unidirectionally solidified superalloy part from the casting mold. In this way, a method for recycling a Ni-based superalloy part, by which the recycle cost of a Ni-based superalloy part and the lifetime cost of a highly efficient gas turbine engine using a Ni-based superalloy part can be significantly reduced, and further a Ni-based superalloy part having the same high-temperature strength and oxidation resistance as those of a newly produced Ni-based superalloy part can be obtained, is provided.
-
-
-
Search Results
4
records
(took 0.024 seconds)
